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Produtos (39.000+)

ST54M - NFC + Secure Element + eSIM + PQC Chip | STMicroelectronics
ST54M

ST54M - NFC + Secure Element + eSIM + PQC Chip | STMicroelectronics

The STMicroelectronics ST54M is a single-die secure solution integrating a contactless front-end (ST54M_CLF), a secure element (ST54M_SE), an embedded SIM (eSIM), and a post-quantum cryptography (PQC) hardware accelerator supporting ML-KEM and ML-DSA algorithms. It is designed for integration into mobile devices and NFC-compliant products, with contactless operating distance extending beyond 15 cm from any reader. A secure element is a hardened, tamper-resistant integrated circuit that stores cryptographic keys and executes security-critical operations in isolation from the main application processor. Within the power-management and connectivity hierarchy of a smartphone, the ST54M sits in the trusted execution domain, handling payment credentials, digital identity, transit tickets, and digital keys. The eSIM function follows the embedded SIM paradigm defined by GSMA specifications, and the serial interface of ST54M_SE is fully compatible with the ISO/IEC 7816-3 standard (T=0, T=1) up to 20 MHz. Key differentiating features include the world-first integration of a PQC hardware accelerator in a mobile secure chip (announced by STMicroelectronics on June 24, 2026), crypto agility that supports hybrid cryptographic approaches during the transition to full post-quantum deployment, and single-die NFC plus secure element integration that simplifies board design versus two-chip solutions. Architecturally, the ST54M combines the CLF (contactless front-end) handling ISO 14443-type RF communication and NFC Forum interactions with the SE platform running Java Card-class secure workloads. The PQC accelerator offloads lattice-based key encapsulation (ML-KEM) and digital signatures (ML-DSA) from the CPU, future-proofing devices against harvest-now-decrypt-later attacks. Typical applications are mobile payment wallets (NFC payments), embedded SIM provisioning for connected services, transit fare collection, digital car keys, and secure identity documents. Design consideration: because contactless performance depends strongly on antenna matching, follow the ST reference antenna tuning network and verify the >15 cm operating distance in the final mechanical stack-up. This page synthesizes manufacturer product data, PQC campaign details, and cross-reference search results into a single engineering reference not found on distributor listing pages.

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ST7262 - USB 8-bit MCU with 3 Endpoints, ROM/Flash | STMicroelectronics
ST7262

ST7262 - USB 8-bit MCU with 3 Endpoints, ROM/Flash | STMicroelectronics

The STMicroelectronics ST7262 is a low-speed USB 8-bit microcontroller from the ST7 family, integrating up to 16 Kbytes of program memory (ROM, FASTROM, or dual-voltage Flash), 256 bytes of RAM, and a USB 1.1 full-speed/low-speed device controller with three endpoints. It features an industry-standard 8-bit ST7 core with enhanced instruction set, a 10-bit ADC, two 16-bit timers, an SCI, an SPI, a watchdog, and an LVD. An 8-bit MCU (microcontroller unit) is a single-chip computer integrating CPU, memory, and peripherals; the ST7 family specifically targets cost-sensitive embedded applications with deterministic interrupt handling and a C-friendly instruction set. Within the MCU taxonomy, the ST7262 sits under: MCU -> 8-bit MCU -> ST7 family -> USB-capable microcontrollers. The integrated USB transceiver and 3-endpoint controller eliminate the need for an external PHY, reducing BOM cost and PCB area for HID, CDC, and vendor-class USB peripherals. Key features include In-Application Programming (IAP) and In-Circuit Programming (ICP) for field firmware upgrades, read/write protection for code security, a master/slave SPI supporting up to 8 Mbit/s, an SCI for asynchronous serial communication, and an operating voltage range of 4.0V to 5.5V suited to USB bus-powered designs. The 10-bit ADC offers 8 multiplexed channels with a minimum conversion time of 12 microseconds, sufficient for basic sensor and battery-monitoring tasks. The architecture pairs a Harvard-style bus with a 4-level priority interrupt controller and a 16-bit timer structure delivering PWM, input capture, and output compare functions. The dual-voltage Flash option allows in-system programming from a 5V USB rail without an external charge pump, and read/write protection prevents software theft via the debug interface. Typical applications include USB keyboards and mice, USB game controllers, USB barcode scanners, low-speed USB-to-serial bridges, and industrial USB human-interface devices. The small footprint and integrated USB make it a popular choice for HID-class peripherals where bill-of-materials cost is critical. When designing with the ST7262, ensure proper USB DP/DM trace impedance (90 ohms differential) and place the internal pull-up resistor on D+ (for full-speed) or D- (for low-speed only) according to the desired USB speed. Decouple VDD with a 100 nF X7R4D ceramic capacitor placed within 3 mm of the supply pin. This page synthesizes distributor availability, parametric equivalents, and practical design notes not found in the standalone manufacturer datasheet, helping procurement and engineering teams evaluate second-source options quickly.

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ST72F324BJ6TAS - 8-bit ST7 MCU, 32KB Flash, 44-LQFP | STMicroelectronics
ST72F324BJ6TAS

ST72F324BJ6TAS - 8-bit ST7 MCU, 32KB Flash, 44-LQFP | STMicroelectronics

The STMicroelectronics ST72F324BJ6TAS is an 8-bit ST7-family CISC microcontroller with 32 KB of in-application programmable Flash, 1 KB of RAM, and a 10-bit ADC, housed in a 44-pin LQFP (10x10 mm) package qualified for automotive temperature grades. The device runs from a 3.8 V to 5.5 V supply at up to 8 MHz internal CPU clock and integrates four timers plus SPI and SCI peripherals for motor, appliance, and body-electronics connectivity. An 8-bit MCU is a microcontroller whose internal data bus, registers and ALU are 8 bits wide, trading raw throughput for deterministic interrupt latency, simple CISC instruction set, and very low cost per I/O. The ST7 family sits within the broader hierarchy microcontroller -> embedded processor -> semiconductor IC; modern 8-bit MCUs remain popular where deterministic timing, EMI robustness and BOM cost dominate over raw MIPS, especially in automotive body, white-goods, and industrial sensor-interface modules. Key features include 32 KB of dual-voltage High-Density Flash with read-out protection, In-Application Programming and In-Circuit Programming support, 1 KB of RAM, a 10-bit ADC with up to 16 channels, four 8-bit timers with PWM, plus SPI and SCI communication blocks. The on-chip oscillator and watchdog reduce external component count. The ST72F324BJ6TAS uses the ST7 CISC core with a 16-bit program counter and Harvard-style bus structure. Memory is split between 32 KB HDFlash and 1 KB SRAM, with separate EEPROM-style emulation in Flash. The 10-bit ADC supports up to 16 multiplexed channels for automotive sensor reading. Typical applications include automotive body controllers, HVAC panels, instrument clusters, white-goods user interfaces, and low-cost industrial sensor nodes. Its wide 5 V supply tolerance and AEC-Q100-style automotive grade make it well suited to 12 V board-net environments. When designing with this device, note the 3.8 V minimum supply and derate CPU clock when VDD is below 4.5 V for full Flash read margin. Place the decoupling capacitor within 5 mm of VDD/VDDA pins and use short traces to ADC inputs to limit acquisition-time error. This page consolidates distributor stock, drop-in compatible variants, and design notes beyond the manufacturer datasheet, making sourcing and second-source qualification faster than cross-checking distributor listings manually.

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ST75185CTR - 3.3V/5V RS-232 Transceiver | STMicroelectronics
ST75185CTR

ST75185CTR - 3.3V/5V RS-232 Transceiver | STMicroelectronics

The ST75185CTR is a 3-driver/5-receiver RS-232 interface transceiver from STMicroelectronics, designed for serial communication in industrial and consumer applications. It operates from a single 3.3V or 5V power supply, with an integrated charge pump that generates the required ±10V RS-232 voltage levels. The device is available in a 20-pin SOIC (SOP-20) package, providing a compact solution for space-constrained designs. RS-232 transceivers are a type of serial communication interface IC that converts logic-level signals (typically 3.3V or 5V) to RS-232 voltage levels (±5V to ±15V) and vice versa. They are part of the broader interface IC category, which also includes UARTs, USB transceivers, and CAN transceivers. RS-232 transceivers are essential for legacy serial communication with PCs, industrial equipment, and test instruments, where the RS-232 standard (EIA-232) is still widely used. Key features of the ST75185CTR include a data rate of up to 120 kbps, which is sufficient for most RS-232 applications, and an ESD protection of ±2 kV (HBM) on the RS-232 pins, ensuring robustness in harsh environments. The device also features a low-power shutdown mode that reduces quiescent current to 1 µA, making it suitable for battery-powered or power-sensitive applications. The charge pump requires only four external 0.1 µF capacitors, simplifying the PCB layout. The ST75185CTR uses a dual charge pump architecture to generate the positive and negative supply rails from a single 3.3V or 5V input. This eliminates the need for a separate negative supply, reducing system cost and board space. The device is designed to meet the EIA-232 and ITU-T V.28 standards, ensuring interoperability with standard RS-232 devices. Typical applications include industrial automation, point-of-sale (POS) terminals, data acquisition systems, and embedded systems requiring serial communication. The wide operating temperature range of -40°C to +85°C makes it suitable for industrial environments. The device is also used in networking equipment, such as routers and switches, for console management ports. When designing with the ST75185CTR, ensure that the charge pump capacitors are placed close to the device pins to minimize noise and ripple. The shutdown pin can be used to reduce power consumption when the transceiver is idle. For ESD protection, the device provides ±2 kV HBM on the RS-232 pins, but additional external protection may be required for applications with higher ESD exposure.

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ST7567S-G4 - 132x65 Mono STN LCD Controller/Driver | Sitronix
ST7567S-G4

ST7567S-G4 - 132x65 Mono STN LCD Controller/Driver | Sitronix

The Sitronix ST7567S-G4 is a single-chip dot matrix LCD controller/driver that combines LCD controller logic with common/segment drivers in a die form factor intended for COG (Chip-On-Glass) and TCP (Tape Carrier Package) assembly. It drives up to 132 segments by 65 commons with an additional icon-common output, providing direct interface to an 8-bit parallel or 4-line SPI-compatible MPU bus. The on-chip Display Data RAM (DDRAM) holds 65 x 132 bits of dot data, supporting multiple duty cycles (1/65, 1/55, 1/49, 1/33) so the same die can address 128x64, 132x64, 96x65, 96x32 and similar monochrome STN panels. A dot matrix LCD controller/driver such as the ST7567S-G4 sits in the system hierarchy between a microcontroller host (MPU) and the physical liquid-crystal glass. It accepts graphics commands from the MPU, stores pixel data in DDRAM, and continuously refreshes the panel through segment and common drivers while generating the bias voltages required for proper pixel RMS drive. Without such a controller, the MPU would need to multiplex all 65 commons and 132 segments in software, which is impractical for low-power portable designs. Key features include a built-in oscillation circuit that eliminates the need for an external clock, a low-power power circuit that derives all internal analog supplies without external DC-DC conversion, and a wide logic supply range. The device supports multiple duty modes, partial-display, standby current in the single-digit microamp range, and is widely used in monochrome graphic modules from 128x32 up to 132x65 pixel resolution. Architecture-wise the chip integrates a high-voltage analog block for generating V0-V4 LCD biases, an 8-bit MPU interface (6800/8080 parallel or 4-wire SPI), and on-chip character/icon RAM. Hardware reset and command-set extensions (set page, set column, contrast control via the electronic-volume command, display ON/OFF, inverse display, all-points-ON) follow the common ST7565/ST7567 family convention used on most graphic COG modules on the market. Typical applications include 128x64 graphic LCD modules for instrumentation and metering, 132x65 graphical panels for handheld POS and industrial HMIs, monochrome STN displays for white goods and consumer electronics, and small dot-matrix COG panels in wearable devices. The ultra-low standby current also makes the chip attractive for battery-powered IoT indicators. Designers choose this IC because it removes the need for an external bias generator or oscillator, dramatically reducing BOM and PCB area in compact module designs. When designing with the ST7567S-G4, careful attention must be paid to bias and contrast-voltage component selection (the external V0 capacitor network dominates the visual contrast), and to reset timing during MPU initialization. The same datasheet-level command set shared by the ST7565/ST7567 family means many existing U8g2 and Adafruit library examples will work unchanged. This page consolidates distributor pricing, compatible alternate COG/TCP LCD controllers, and engineering notes beyond what is contained in the manufacturer datasheet.

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STA304A - 6-Channel Digital Audio Processor | STMicroelectronics
STA304A

STA304A - 6-Channel Digital Audio Processor | STMicroelectronics

STMicroelectronics STA304A is a fully integrated, 6-channel digital audio processor with I2C and I2S interfaces, a 3 V to 3.6 V supply range, and a 44-TQFP 10 mm by 10 mm package. It belongs to STMicroelectronics' DDX family of digital audio processors and is designed to provide centralized digital signal processing for multichannel audio systems. The verified product data identifies the device as obsolete, so new production procurement should be treated as constrained. A digital audio processor is a specialized integrated circuit that receives, processes, and distributes digital audio signals within an audio system. In the broader product hierarchy, the STA304A is an audio processor, which is a form of audio special-purpose IC and therefore part of the wider semiconductor and signal-processing ecosystem. Its I2C interface supports control and configuration, while its I2S interface supports serialized digital audio data transfer. The STA304A provides six digital audio channels in one integrated device. This channel count allows one processor to coordinate multichannel audio routing and processing rather than requiring a separate discrete solution for each channel. Its 3 V to 3.6 V operating supply range allows integration into compatible 3.3 V audio equipment. The 44-TQFP surface-mount package provides a compact solution for multichannel consumer audio products. The device combines digital audio processing, control connectivity, and multichannel interface functionality in a single package. According to the verified STMicroelectronics product information, its supported interfaces are I2C and I2S. I2C is useful for configuration and register access, while I2S carries digital audio samples between the processor and codecs, amplifiers, converters, or other digital audio endpoints. Typical uses include active speakers, multichannel home-audio equipment, digital mixing equipment, and other consumer audio systems that require centralized multichannel processing. In an I2S audio path, the STA304A can sit between a digital audio source and one or more audio codecs. The supplied product information does not specify sample rate, processing latency, channel mapping, or output-routing details, so those characteristics must be confirmed in the manufacturer datasheet before design release. Engineers should pay particular attention to the obsolete lifecycle status and validate interface timing, power sequencing, and channel assignment against the manufacturer documentation. Because the verified information identifies the part as obsolete, boards requiring long-term availability may need an approved redesign rather than a routine procurement substitution. Any replacement should be evaluated for package, pinout, supply voltage, I2C behavior, and I2S signal compatibility. This product record combines verified distributor and manufacturer-linked information with practical sourcing, design, and replacement guidance. It distinguishes confirmed STA304A characteristics from parameters that remain unavailable, helping engineers make informed decisions without treating an unverified alternative as a guaranteed drop-in replacement.

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STA30613TR - 6-Channel Audio Processor | STMicroelectronics
STA30613TR

STA30613TR - 6-Channel Audio Processor | STMicroelectronics

STMicroelectronics STA30613TR is a fully integrated audio processor with six channels, supplied in a 64-pin TQFP package measuring 10 x 10 mm. The device is categorized for audio and multimedia signal-processing applications, where integration can help reduce the number of separate components required around an audio subsystem. Its catalog designation identifies the STA30613TR specifically as a six-channel fully integrated processor in a 64-TQFP (10 x 10) package. An audio processor is an integrated circuit that combines audio-related processing functions into a dedicated package. In the broader electronics hierarchy, an audio processor belongs to the signal-processing IC and integrated-circuit classes, sitting alongside DSP and multimedia controllers. Its role is to manage one or more portions of an audio signal path, and the specific functions depend on the device architecture, supported interfaces, internal converters, memory, and external circuitry described in the manufacturer documentation. The STA30613TR's principal catalog-level features are its fully integrated processor architecture, six-channel configuration, and 64-pin TQFP package. The package provides 64 electrical contact positions for power, ground, digital interfaces, analog audio connections, control signals, and configuration functions. Because it uses a fine-pitch surface-mount footprint, correct land-pattern design, soldering profile, and decoupling layout are essential for reliable assembly. Integration can simplify audio subsystem design by reducing board area and the number of interconnects compared with a discrete converter, interface, and control solution. The trade-off is that a highly integrated processor may require more careful treatment of analog grounding, supply sequencing, clocking, and signal routing. Designers should preserve the separation recommended between sensitive analog returns and digital return currents while providing a low-impedance supply path to the device. Typical uses include multichannel audio equipment, active speaker systems, soundbar platforms, home-theater signal processing, automotive infotainment audio modules, and other embedded systems that need a dedicated six-channel audio-processing function. Suitability for a specific design depends on the complete interface, clock, memory, voltage, codec, amplifier, and thermal requirements rather than channel count alone. For layout planning, assign the 64 TQFP pins by the manufacturer's pin-description table, place support components near their associated pins, and route high-current and switching-node connections away from audio inputs. Use the manufacturer layout guidance for decoupling, grounding, exposed thermal behavior, and assembly. The TR package designation should also be checked against the intended production handling method and assembly line. This product record combines the confirmed six-channel and 64-TQFP identity with practical guidance for package assignment, signal integrity, thermal planning, sourcing, and qualification. It is intended to help engineers establish whether the STA30613TR belongs in a new audio architecture and what information must be confirmed before committing to a PCB or production release.

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STA308 - 8-Channel Digital Audio Processor | STMicroelectronics
STA308

STA308 - 8-Channel Digital Audio Processor | STMicroelectronics

The STMicroelectronics STA308 is an 8-channel fully integrated digital audio processor with DDX direct digital amplification output capability, 24-bit processing, and support for input sample rates from 32 kHz to 192 kHz. It is packaged in a 64-terminal LFQFP measuring 10 mm by 10 mm and operates from a 2.3 V to 2.7 V supply. A digital audio processor is a specialized signal-processing IC that receives digital audio streams, applies channel control and volume functions, and drives digital amplification stages. Within the hierarchy of digital signal processing, it belongs to the DSP and audio-special-purpose IC categories. Its DDX outputs support high-efficiency all-digital amplification when paired with compatible DDX power devices. The STA308 provides eight 24-bit DDX channels and digital volume control in 0.5 dB steps. The verified source material specifies variable digital gain up to 24 dB in 0.5 dB steps, digital limiter functionality, and input sample-rate support from 32 kHz through 192 kHz. An I2C interface is identified in the available technical data, while the remaining control, clock, data, and DDX signal assignments require the manufacturer pin table for implementation. This processor targets multichannel consumer-audio systems where digital signal routing, per-channel gain, limiting, and direct digital amplification are useful. Relevant system roles include powered speakers, active soundbars, compact home-theater amplification, digital mixer output conditioning, and multi-zone powered-speaker control. The DDX architecture eliminates a conventional analog power-amplifier input stage when the associated external power devices and firmware are compatible. Designers should treat the STA308 as part of a tightly coupled digital audio subsystem rather than a standalone codec. The 2.3 V to 2.7 V operating range requires a stable low-noise supply, and all 64 package terminals must be connected or intentionally configured exactly as shown in the manufacturer datasheet. Audio-clock, serial-data, DDX output, control, ground, and decoupling layouts should preserve signal integrity and adequate return paths. This page combines verified manufacturer and distributor information with practical selection guidance. Pricing reflects the supplied LCSC listing as of 2026-10-23, while lifecycle, detailed electrical limits, complete pin assignments, and true drop-in replacements remain constrained by the available evidence.

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STA30813TR - 8-Channel 24-Bit DDX Audio Processor | STMicroelectronics
STA30813TR

STA30813TR - 8-Channel 24-Bit DDX Audio Processor | STMicroelectronics

The STMicroelectronics STA30813TR is an eight-channel multichannel digital audio processor with DDX processing, 24-bit operation, and support for input sample rates from 192 kHz down to the audio-band rates supported by the device family. The processor is packaged in a 64-lead TQFP measuring 10 x 10 mm and is intended for tone control, preamplification, and multichannel audio signal processing. An audio processor is a specialized signal-processing IC that applies gain, volume, filtering, and other control functions to multiple digital audio channels. Within the signal-chain hierarchy, it sits between an audio ADC or digital audio source and a DAC or power-amplifier stage. Instead of using one external preamplifier per channel, an integrated processor can centralize control across eight channels and reduce the number of external analog-control components. The STA30813TR provides eight 24-bit DDX channels, a variable digital gain range of 24 dB in 0.5 dB steps, and volume control in 0.5 dB steps. A digital limiter function helps control signal excursions. These features make the device applicable to multichannel preamplifiers, active speaker systems, home-theater audio, and professional audio equipment requiring coordinated channel-level adjustment. Its multichannel architecture allows common processing parameters to be applied across several audio paths. Digital gain and volume adjustments can be performed after conversion into the digital domain, which helps keep channel balance consistent and reduces sensitivity to component tolerance compared with purely analog gain control. The exact supported interface modes and configuration options should be confirmed in the manufacturer datasheet before layout is finalized. Typical uses include digital preamplifier boards, eight-channel mixer modules, powered-speaker control boards, surround-sound systems, and audio receiver or amplifier subsystems. The 10 x 10 mm TQFP package keeps the device compact while exposing enough pins for digital audio connections, control signals, clocking, power, and configuration functions. When designing around this obsolete device, verify every pin assignment, supply requirement, interface mode, and clock configuration against the original manufacturer datasheet. Board bring-up should also confirm the expected DDX behavior and limiter settings, particularly when the processor sits in a high-gain or live-signal path. This page consolidates the confirmed channel-count, bit-depth, gain, volume-control, packaging, and temperature information, while separating confirmed drop-in references from options that require additional compatibility verification. It also provides design guidance and application context that are not present in a basic distributor listing.

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STA308A - 8-Channel 24-Bit Digital Audio Processor | STMicroelectronics
STA308A

STA308A - 8-Channel 24-Bit Digital Audio Processor | STMicroelectronics

The STMicroelectronics STA308A is an 8-channel, 24-bit multichannel digital audio processor with DDX direct-digital-amplification output capability, housed in a 64-TQFP package measuring 10 mm by 10 mm. It supports selectable input sample rates from 32 kHz to 192 kHz, six DSD/SACD input channels, I2C control with a selectable device address, and digital gain or attenuation. According to the STMicroelectronics manufacturer datasheet, the processor provides more than 100 dB signal-to-noise ratio and dynamic range. A digital audio processor is a specialized signal-processing IC that receives digital audio streams, applies configurable channel processing and volume control, and produces digital outputs for downstream converters or power stages. Within the broader hierarchy, the STA308A belongs to audio special-purpose ICs, digital signal processors, multichannel audio ICs, and power-management-dependent amplification systems. Its DDX outputs allow an external DDX power device to complete an all-digital Class-D-style amplification chain. The principal features include eight 24-bit DDX channels, greater-than-100-dB SNR and dynamic range, sample-rate selection from 32 kHz through 192 kHz, and six DSD/SACD inputs. I2C control simplifies configuration of device addressing and digital gain or attenuation. These functions make the device suitable for DVD, home-theater, active-speaker, digital mixing, and multi-zone audio systems where several decoded channels must be routed and level-controlled centrally. Technically, the STA308A separates digital signal processing from analog power amplification. Its digital outputs can connect to compatible DDX power devices, reducing the need for conventional analog volume-control paths and allowing attenuation to remain in the digital domain. This architecture can improve channel integration and simplify control software, but system performance also depends on the selected power device, power-supply design, output filtering, clocking, and PCB signal integrity. Typical uses include 5.1- and 7.1-channel surround systems, powered speakers, DVD receivers, digital active loudspeakers, and compact audio hubs. The 10 mm square TQFP package supports conventional surface-mount assembly, although careful decoupling and short high-speed routing remain essential. The supplied source material does not state supply voltage, clock limits, output logic levels, or thermal resistance. Designers should confirm all logic levels, supported digital interfaces, DDX power-device requirements, and external component values against the manufacturer datasheet. Because the verified excerpts emphasize processing rather than exact pin assignments, engineers should use the official PDF for the complete 64-pin connection table rather than infer unused pins. Distributor pricing and lifecycle status were not provided, so purchasing requires a current quote and availability check. This page consolidates verified manufacturer capabilities, distributor identification, sourcing guidance, and design cautions for the STA308A. It distinguishes confirmed functions from missing electrical details and avoids presenting unverified alternatives as drop-in replacements.

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STA308A13TR - 8-Channel 24-Bit Audio DSP | STMicroelectronics
STA308A13TR

STA308A13TR - 8-Channel 24-Bit Audio DSP | STMicroelectronics

STMicroelectronics STA308A13TR is an eight-channel 24-bit DDX multichannel digital audio processor with greater than 100 dB signal-to-noise ratio and dynamic range. It supports selectable input sample rates from 32 kHz to 192 kHz, six channels of DSD/SACD input, and selectable I2C device addressing. The processor is packaged in a 64-pin TQFP measuring 10 mm by 10 mm and is intended for advanced digital audio systems. A digital audio processor is a specialized signal-processing IC that operates on digital audio streams rather than directly amplifying an analog waveform. Within the broader hierarchy of DSP, audio DSP, and integrated circuits, it provides channel routing, volume control, equalization, sampling-rate handling, and multichannel processing. These functions are commonly used in home theater, professional audio, automotive infotainment, and powered-speaker products. The DDX architecture supports eight channels of 24-bit processing with greater than 100 dB SNR and dynamic range. Selectable 32 kHz through 192 kHz input rates provide flexibility for CD-rate, high-resolution audio, and multichannel entertainment sources. Six DSD/SACD input channels extend the digital input capability beyond conventional PCM operation. Programmable signal conditioning includes digital gain and attenuation from +58 dB to -100 dB in 0.5 dB steps, soft-volume updates, individual channel and master gain controls, and channel trim from -10 dB to +10 dB. Each channel can support up to ten independent 32-bit user-programmable biquad equalizers, allowing tonal correction without changing the external analog signal path. Typical systems include multichannel A/V receivers, digital active loudspeakers, automotive audio controllers, home-theater processors, and professional sound equipment. The 64-pin TQFP provides enough external connections for multichannel digital audio, control, clocking, and power rails while supporting surface-mount manufacturing. Designers should preserve the recommended clock, layout, grounding, and decoupling arrangements from the manufacturer datasheet. I2C configuration must account for the selectable device address, while software should handle the soft-volume update sequence to prevent audible gain discontinuities. The processor supports a -40 °C to 90 °C operating-temperature range according to the product listing. This page combines the available channel-count, bit-depth, SNR, sampling-rate, gain-control, DSD/SACD, package, and temperature information with practical selection guidance. It also distinguishes verified drop-in candidates from related products that cannot be assumed to share pin compatibility.

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STA309A - 8-Channel Digital Audio Processor | STMicroelectronics
STA309A

STA309A - 8-Channel Digital Audio Processor | STMicroelectronics

The STMicroelectronics STA309A is an 8-channel fully integrated digital audio processor with DDX output capability, supplied in a 64-pin TQFP package measuring 10 mm by 10 mm. It provides the digital processing and control required by multi-channel audio systems and accepts audio data from compatible serial digital-audio components through configurable serial interfaces. The processor operates as a slave when receiving standard digital-audio input, simplifying integration with external source devices. A digital audio processor is a programmable semiconductor that manages one or more audio signal paths, applying channel routing, volume, equalization, decoding, or other processing functions under software or hardware control. Within the product hierarchy, the STA309A belongs to audio ICs, digital signal processors, and multi-channel digital audio processors. It is intended to work with a compatible DDX power device when a complete Class-D-style output stage is required. Verified product information identifies the STA309A as a single-chip solution for digital audio processing and control in multi-channel applications. Its principal verified features include eight processing channels, support for several serial audio input formats, slave operation for standard digital-audio input, and DDX outputs for connection to external power-stage devices. These functions make it useful in home-theater systems, powered speakers, digital active speakers, and custom multi-way audio products. The serial interface accepts standard digital audio streams from source components, while the processing core organizes those streams for eight-channel output. Configuration software and the correct external memory or control circuitry must be selected from the manufacturer datasheet; those detailed electrical and memory requirements are not included in the supplied search data. System designers should therefore avoid inferring unsupported sample rates, filter coefficients, or control-interface details without reviewing the official documentation. Typical designs place the STA309A between an optical, coaxial, network, or other digital-audio source and a multi-channel DDX output stage. The source supplies a compatible serial stream, the processor applies the required channel processing, and a DDX power device reconstructs the amplified analog output. Software configuration is essential for routing, crossovers, equalization, and channel delays, so processor capability alone does not replace correct system implementation. The primary design consideration is interface compatibility. Because the STA309A acts as a slave when receiving audio from standard digital-audio components, the master device, clocking arrangement, serial format, and signal mapping must all match. Board layout should preserve short, clean clock and data paths, provide stable decoupling, and route high-current DDX output signals separately from sensitive processor signals. Prototype validation should include clocking, channel assignment, mute behavior, and full-load output behavior. This product record combines verified STMicroelectronics and distributor information with explicit data gaps, package requirements, application guidance, and sourcing links. Unlike a basic distributor listing, it identifies the processor role and emphasizes the engineering checks needed before using the 64-TQFP device as a drop-in element in a multi-channel audio design.

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STA309A13TR - 8-Channel Digital Audio Processor | STMicroelectronics
STA309A13TR

STA309A13TR - 8-Channel Digital Audio Processor | STMicroelectronics

STMicroelectronics STA309A13TR is an 8-channel fully integrated digital audio processor with DDX output capability, housed in a 64-TQFP package measuring 10 mm by 10 mm. It processes most common digital audio formats for multichannel systems and supports 6.1-channel and 7.1-channel content, 192 kHz sampling, and 24-bit resolution. A digital audio processor is a specialized signal-processing IC that receives digital audio streams, applies decoding, routing, volume, and channel-control functions, and prepares the result for downstream power amplification. The STA309A belongs to the broader digital signal processor hierarchy and serves as the control and processing stage between digital audio sources and DDX-compatible power devices. The STA309A13TR integrates eight-channel audio processing into one device and provides output capabilities for DDX power amplifiers. Its support for 192 kHz and 24-bit audio makes it appropriate for high-resolution home theater, multichannel amplification, digital active-speaker, and professional audio systems. The distributor description also identifies a 100 dB signal-to-noise rating and 1 W output capability. This architecture allows a receiver, amplifier, or speaker system to centralize multichannel routing and processing before power amplification. Digital processing can reduce the number of discrete control functions required in the signal path, while DDX output compatibility provides a defined interface to compatible power stages. The exact clocking, interconnect, and configuration details should be taken from the manufacturer pin-description table and reference circuitry. Typical applications include 7.1-channel home-theater amplification, six-channel digital active speakers, high-resolution multichannel audio receivers, and powered loudspeaker systems using DDX devices. In these systems, the processor handles digital multichannel content and coordinates it across the available output channels before the external power stage drives the transducers. PCB implementation should preserve the recommended decoupling and signal-routing arrangement for the 64-TQFP footprint. Pay particular attention to power-supply integrity, exposed-pad thermal performance, digital input routing, and output-channel mapping. Use the manufacturer datasheet pin table when assigning every signal and programming the device. This page combines the verified product identity, package information, multichannel capability, price handling, and application-focused engineering guidance. It also distinguishes the available drop-in option from functional substitutes so engineers can assess PCB reuse without mistaking a different audio architecture for a pin-compatible replacement.

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STA310 - 6+2-Channel Audio Decoder | STMicroelectronics
STA310

STA310 - 6+2-Channel Audio Decoder | STMicroelectronics

The STMicroelectronics STA310 is a fully integrated multistandard audio decoder with 6+2-channel decoding, designed for HDTV, audio players, receivers, and set-top boxes in an 80-pin TQFP (14x14) package. The supplied data confirms support for DVD Audio Meridian Lossless Packing (MLP), uncompressed LPCM with 1–8 channels, and encoded data input through serial I2S, S/PDIF, or parallel interfaces. An audio decoder is an interface IC that converts compressed or encoded digital audio streams into PCM data for downstream digital-to-analog converters, amplifiers, receivers, or speakers. Within the signal chain, it sits between a source interface and the audio output stage, handling format recognition, channel organization, and decoding while leaving analog amplification and loudspeaker drive to downstream components. The STA310's key verified features include integrated multistandard decoding and support for both serial and parallel input paths. The I2S and S/PDIF options suit modern digital audio systems, while the parallel interface can support legacy source architectures. Its 6+2-channel capability is relevant to multichannel home entertainment, although exact channel-routing behavior must be confirmed from the manufacturer datasheet and application implementation. The architecture combines encoded digital audio input, format-specific decoding, and decoded audio output in one device. This integration can reduce the external decoder count in a set-top box, DVD player, HDTV, or surround-sound receiver. System designers must still account for clocking, supported sample rates, output format, electrical levels, signal integrity, and software or control requirements that are not specified in the supplied web excerpts. Typical applications include HDTV audio processing, DVD and disc-player output stages, AV receivers, digital audio players, set-top boxes, and other home-entertainment equipment. The STA310 is especially relevant where a product must accept encoded digital audio from several source types and produce decoded multichannel PCM audio for a downstream codec or amplifier. When laying out an STA310 design, preserve the exact pin assignments and reference interface timing shown in the manufacturer datasheet. Keep digital audio, clock, and power routing controlled, provide the required bypass and interface components, and validate timing margins across every supported input format. This page consolidates distributor identification, verified format support, sourcing data, and engineering guidance.

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STA311B Multichannel Audio Processor | STMicroelectronics
STA311B

STA311B Multichannel Audio Processor | STMicroelectronics

STMicroelectronics STA311B is a single-chip digital audio processing and control solution for multichannel audio systems, with output capabilities for FFX (full flexible amplification). The device is identified by STMicroelectronics as a multichannel digital audio processor and is positioned for applications requiring digital audio processing, control, and flexible output amplification. Its verified package information, channel count, audio-interface format, processing architecture, and electrical limits were not included in the supplied web excerpts and therefore remain subject to confirmation from the manufacturer datasheet. A digital audio processor is a specialized integrated circuit that receives digital audio data, executes configurable signal-processing operations, and returns the processed result to the system. Within the broader semiconductor hierarchy, the STA311B is an audio DSP, which belongs to the digital signal processor and audio integrated-circuit categories. Unlike a simple codec or analog amplifier, its role centers on programmable multichannel audio processing and system control rather than only converting between analog and digital signals. The STA311B's central verified feature is its integration of digital audio processing, multichannel control, and FFX output capability in one device. According to the STMicroelectronics product page, this combination can simplify audio-system design by consolidating functions normally distributed across several dedicated devices. The same manufacturer description identifies it as a single-chip solution, which may reduce component count and board-level integration effort in compatible multichannel audio equipment. The manufacturer's datasheet is the authoritative source for the complete digital input and output interface, supported sample rates, bit depths, processor-channel count, filter resources, control interfaces, clocking, supply voltages, and electrical characteristics. Those individual parameters were not exposed in the supplied search excerpts, so no numerical limits are inferred here. This distinction is important for multichannel designs because interface format, clock requirements, and power specifications determine whether the STA311B can replace another processor without a PCB or firmware redesign. Typical potential uses include multichannel active loudspeaker systems, digital cinema audio, home-cinema processing, professional audio electronics, soundbars, and other multichannel playback products. The STA311B is especially relevant where several audio channels require coordinated processing and flexible amplification control. Actual suitability depends on matching the source format, channel topology, DSP configuration, control protocol, and system clock to the manufacturer's documented limits. Before design-in, engineers should review the official STA311B datasheet and product page for the exact package outline, complete pinout, supported interfaces, recommended operating voltages, clocking scheme, and reset or configuration requirements. The verified excerpts do not disclose a public pin mapping, so no pin-level wiring should be inferred from this page. Distributor availability and the listed starting price should also be reconfirmed before procurement. This page distinguishes directly verified manufacturer claims from unavailable technical fields and combines that evidence with purchasing guidance, application context, and explicit validation boundaries. That approach helps engineers evaluate the STA311B without treating unverified channel, package, timing, or electrical claims as drop-in-compatible facts.

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STA311BTR - 8-Channel Audio DSP with FFX | STMicroelectronics
STA311BTR

STA311BTR - 8-Channel Audio DSP with FFX | STMicroelectronics

STMicroelectronics STA311BTR is an 8-channel fully integrated digital audio processor with FFX full-flexible amplification, designed for multichannel digital audio processing and control. It operates from a 3 V to 3.6 V supply, supports audio processing up to 192 kHz, and uses I2S and I2C interfaces. The device is supplied in a 56-pin VFQFPN package measuring 8 mm by 8 mm. These headline parameters position it as a highly integrated audio DSP and signal-processing IC for multichannel consumer audio systems. A digital audio processor is a semiconductor that processes sampled audio signals using programmable algorithms. Within the broader hierarchy, the STA311BTR belongs to the audio DSP category, combines a digital signal processor with multichannel audio control, and provides integrated FFX output-stage control. This integration can reduce the number of separate control and amplification functions required in a multichannel audio subsystem while preserving a centralized digital signal path. The verified data identifies 8 processing channels, operation from 3 V to 3.6 V, and a maximum sampling rate of 192 kHz. I2S provides the digital audio data interface, while I2C supports control communication with a host or configuration controller. The 56-pin VFQFPN package is designed for compact surface-mount assembly, and the stated operating-temperature range of -40°C to 125°C supports use across consumer, industrial, and automotive temperature environments. The STA311BTR family combines digital audio processing, control, and FFX output capabilities in one device. Its 192 kHz capability is relevant to high-resolution audio pipelines, while eight channels allow a single device to manage several audio paths. FFX technology provides the output-control foundation for integrated multichannel amplification, although detailed FFX electrical limits, internal DSP functions, and amplifier configuration options must be confirmed in the manufacturer datasheet before final schematic design. Typical uses include multichannel active speaker systems, home-theater audio processing, digital speaker control, automotive head-unit audio, and other multi-zone audio platforms. It is particularly relevant where a host processor needs to configure several synchronized audio channels without implementing every processing and control function as separate discrete logic. A key design consideration is that the 3 V to 3.6 V operating range leaves limited headroom for ancillary circuitry. Interface levels, external amplifier requirements, decoupling, exposed-pad layout, and grounding must therefore be checked against the datasheet. Because the verified sources do not expose a complete pin table, PCB integration should use the official STMicroelectronics package drawing rather than infer connections from the 56-pin count. This page consolidates the verified distributor and manufacturer information, separates documented parameters from missing data, and provides application guidance, comparison placeholders, and sourcing notes that are not available from a simple distributor listing alone.

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STA32013TR - 2.1-Channel 24-Bit DDX Audio Processor | STMicroelectronics
STA32013TR

STA32013TR - 2.1-Channel 24-Bit DDX Audio Processor | STMicroelectronics

STMicroelectronics STA32013TR is a 2.1-channel, 24-bit DDX digital audio processor with greater than 100 dB signal-to-noise ratio, selectable input sample rates from 32 kHz to 192 kHz, and I2C control in a 28-pin SOIC package. The obsolete device was supplied in cut-tape packaging for surface-mount production and was positioned for automotive and consumer audio systems requiring multichannel digital signal processing. A digital audio processor is a specialized signal-processing IC that receives digital audio data, applies channelization, volume, filtering, and related control functions, and produces controlled digital outputs for downstream conversion or amplification. In the product hierarchy, the STA32013TR belongs to the audio processor class, which sits within audio special-purpose integrated circuits and broader consumer and automotive signal-processing systems. Its DDX architecture provides a dedicated approach to digital audio channel management rather than requiring several discrete control functions. The principal verified features include support for three output channels in a 2.1-channel configuration and 24-bit digital audio processing. The documented signal-to-noise ratio exceeds 100 dB, supporting high-fidelity audio reproduction. Input sampling can be selected between 32 kHz and 192 kHz, allowing the processor to accommodate source material with different sampling rates. An I2C interface provides a standard two-wire control path for configuration and register access. The STA32013TR is housed in a 28-pin SOIC package measuring 0.295 inches, or 7.50 mm, in width. This package provides a defined surface-mount option for compact audio electronics. The documented operating-temperature range is -20 °C to +125 °C when referenced to junction temperature. These package and environmental characteristics make the device suitable for applications where a conventional SOIC footprint and industrial-temperature operation are required, subject to normal end-of-life sourcing constraints. Typical uses include digital audio preamplifier platforms, multichannel automotive head-unit signal chains, and consumer-audio systems requiring two main channels plus one additional output channel. The 192 kHz upper sampling-rate option supports high-resolution digital-audio workflows, while the greater-than-100 dB SNR specification provides a measurable dynamic-range figure. Because the available source identifies direct digital amplification and preamplifier applications, system designers should verify the external data converter, speaker amplifier, clocking, and interface implementation against the manufacturer documentation. The primary design consideration is lifecycle availability. The supplied web data identifies STA32013TR as obsolete, so production designs should not assume stable new supply. Engineers should confirm whether authorized distributor inventory is genuine, compare any proposed replacement against the complete pinout, clock requirements, register map, and audio performance, and perform system-level listening and signal-integrity validation before substitution. This product page consolidates the verified package, channel-count, bit-depth, sampling-rate, control-interface, environmental, lifecycle, and sourcing information into an engineering-focused record. It also separates documented facts from unavailable pricing, pin-level data, and drop-in alternatives, helping designers identify what must still be confirmed before schematic release or production procurement.

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STA321MPL - 6-Channel 24-Bit Audio DSP | STMicroelectronics
STA321MPL

STA321MPL - 6-Channel 24-Bit Audio DSP | STMicroelectronics

STMicroelectronics STA321MPL is a scalable digital microphone processor with 6 PDM channels, 2 virtual digital audio channels, and 24-bit audio processing in a 64-pin TQFP (10 x 10 mm) package. Designed for consumer audio systems, it consolidates multiple digital microphone inputs and audio-processing functions into one dedicated IC while supporting an 8-channel audio configuration described by the manufacturer. A digital microphone processor is a specialized audio interface and signal-processing IC. It accepts digital microphone data through PDM interfaces, combines or processes those streams, and routes them into a larger audio system. Within the product hierarchy, the STA321MPL belongs to the audio special-purpose IC class and functions as a configurable digital audio processor rather than a conventional power amplifier or general-purpose microcontroller. Principal features include 6 PDM microphone channels, 2 virtual digital audio channels, and 24-bit resolution. The 64-terminal package provides the mixed-signal, control, clock, data, and power connections required for a multi-microphone audio design. Commercial-grade temperature operation, a 3.3 V supply identified in distributor data, and a low-profile surface-mount format make the device suitable for consumer audio equipment such as soundbars, smart displays, home-audio systems, and compact voice-assisted products. The part's processing resources allow multiple digital microphones to be combined before transmission to a host codec or application processor. This architecture can reduce microphone-count-related wiring complexity while providing a consistent digital-audio data path. The 24-bit processing format preserves high numerical resolution, although achievable microphone and system signal-to-noise performance also depends on the selected microphones, clocks, power design, decoders, and software configuration. Typical uses include beamforming microphone arrays, conference-room audio, smart-home voice terminals, display soundbars, and compact stereo or 2.1 entertainment systems. Designers should use the manufacturer datasheet and reference configuration to map clocks, PDM inputs, digital audio outputs, control interfaces, and supply rails. Exact operating limits, clock frequencies, output formats, and pin-level functions must be confirmed from the full datasheet before layout or firmware release. Power and layout planning should account for all 64 connections even when some application-specific pins are unused. Keep digital audio routing short, maintain a continuous ground reference, isolate noisy power paths from sensitive audio circuitry, and validate timing margins between the processor, microphones, and downstream codec. This page consolidates verified distributor specifications, sourcing information, and practical integration guidance into a design-focused component record.

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STA321MPL1TR - 8-Channel PDM Microphone Processor | STMicroelectronics
STA321MPL1TR

STA321MPL1TR - 8-Channel PDM Microphone Processor | STMicroelectronics

The STMicroelectronics STA321MPL1TR is an 8-channel scalable digital microphone processor with six physical PDM input channels, two additional virtual channels, and 24-bit processing in a 64-TQFP 10 x 10 mm package. It supports digital gain and attenuation from 58 dB to -100 dB in 0.5 dB steps, soft volume updates, individual channel and master level control, and more than 100 dB SNR and dynamic range. A digital microphone processor is an audio signal-processing IC that accepts pulse-density-modulated microphone data, combines multiple channels, applies configurable level and volume operations, and transfers the resulting digital audio stream to a host or audio system. In the product hierarchy, the STA321MPL1TR belongs to the scalable digital microphone processor class, then to digital audio processors, audio DSPs, and broader power-management-independent semiconductor signal-processing devices. The processor provides eight independent 24-bit digital processing paths. Six channels use physical PDM inputs, while two virtual channels expand the usable processing capability beyond the physical microphone count. The 58 dB to -100 dB gain range gives system designers broad attenuation and amplification control, with each adjustment available in 0.5 dB increments. Soft volume updates allow level changes to be applied without abrupt volume transitions. STMicroelectronics describes the device as a fully digital, high-performance, multichannel processor designed for general-purpose digital microphone applications. Its digital signal path avoids an analog mixer stage after PDM conversion, helping preserve microphone signal integrity while providing centralized channel and master level management. The architecture can serve multi-microphone systems requiring configurable channel routing and software-controlled levels. Typical uses include digital microphone arrays, voice-capture systems, conference equipment, smart audio endpoints, and embedded voice interfaces. Six PDM microphones can be processed concurrently, while the two virtual channels support additional flexible signal-processing resources. A host processor can configure channel gain, master level, and volume behavior through the device control interface. The principal design considerations are PDM clocking, microphone data synchronization, digital-mic power sequencing, and firmware configuration of channel gain and routing. Designers should preserve short, matched digital paths between microphones and the processor and follow the manufacturer’s reference configuration for clock polarity, decimation, and system initialization. This page consolidates the processor architecture, application guidance, verified sourcing information, and design-focused selection criteria into one engineering reference. Use the manufacturer datasheet for the complete register map, timing diagrams, electrical limits, and pin assignments when finalizing a PCB or embedded audio design.

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STA321MPLTR - 6-Channel 24-Bit Audio DSP | STMicroelectronics (Tape & Reel)
STA321MPLTR

STA321MPLTR - 6-Channel 24-Bit Audio DSP | STMicroelectronics (Tape & Reel)

STMicroelectronics STA321MPLTR is a scalable digital microphone processor with 6 PDM channels, 2 virtual digital audio channels, and 24-bit audio processing in a 64-pin TQFP (10 x 10 mm) package. Designed for consumer audio systems, it consolidates multiple digital microphone inputs and audio-processing functions into one dedicated IC while supporting an 8-channel audio configuration described by the manufacturer. A digital microphone processor is a specialized audio interface and signal-processing IC. It accepts digital microphone data through PDM interfaces, combines or processes those streams, and routes them into a larger audio system. Within the product hierarchy, the STA321MPLTR belongs to the audio special-purpose IC class and functions as a configurable digital audio processor rather than a conventional power amplifier or general-purpose microcontroller. Principal features include 6 PDM microphone channels, 2 virtual digital audio channels, and 24-bit resolution. The 64-terminal package provides the mixed-signal, control, clock, data, and power connections required for a multi-microphone audio design. Commercial-grade temperature operation, a 3.3 V supply identified in distributor data, and a low-profile surface-mount format make the device suitable for consumer audio equipment such as soundbars, smart displays, home-audio systems, and compact voice-assisted products. The part's processing resources allow multiple digital microphones to be combined before transmission to a host codec or application processor. This architecture can reduce microphone-count-related wiring complexity while providing a consistent digital-audio data path. The 24-bit processing format preserves high numerical resolution, although achievable microphone and system signal-to-noise performance also depends on the selected microphones, clocks, power design, decoders, and software configuration. Typical uses include beamforming microphone arrays, conference-room audio, smart-home voice terminals, display soundbars, and compact stereo or 2.1 entertainment systems. Designers should use the manufacturer datasheet and reference configuration to map clocks, PDM inputs, digital audio outputs, control interfaces, and supply rails. Exact operating limits, clock frequencies, output formats, and pin-level functions must be confirmed from the full datasheet before layout or firmware release. Power and layout planning should account for all 64 connections even when some application-specific pins are unused. Keep digital audio routing short, maintain a continuous ground reference, isolate noisy power paths from sensitive audio circuitry, and validate timing margins between the processor, microphones, and downstream codec. This page consolidates verified distributor specifications, sourcing information, and practical integration guidance into a design-focused component record.

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STA321TR - 4-Channel Audio Processor with FFX | STMicroelectronics
STA321TR

STA321TR - 4-Channel Audio Processor with FFX | STMicroelectronics

The STMicroelectronics STA321TR is a 4-channel digital audio system with an FFX class-D driver, digital gain from -105 dB to +36 dB in 0.5 dB steps, and I2C control in a 64-LQFP-EPD 10 x 10 mm package. The device combines programmable digital audio processing with PWM outputs and a headphone-output stage, allowing compact systems to manage multiple channels while preserving a software-controlled signal path. An audio system processor is an integrated circuit that combines digital signal processing, channel control, output-driver functions, and host configuration in one device. In the broader semiconductor hierarchy, the STA321TR belongs to the audio IC category, specifically a fully integrated multichannel audio processor. Its role is to execute volume, attenuation, filtering, equalization, and tone-control functions while communicating with a host controller through I2C. Key features include selectable DC-blocking high-pass and de-emphasis filters, up to 13 user-programmable 28-bit biquad equalizers per channel, bass and treble tone control, soft volume updates, muting, and selectable ternary, binary, or phase-shift modulation for the PWM outputs. These functions support configurable channel routing and audio shaping without implementing the complete processing chain in external discrete circuitry. The integrated architecture reduces the number of separate control and signal-path components required in a multichannel audio design. Digital gain and attenuation extend across a 111 dB adjustment range using 0.5 dB steps, while the headphone output with jack detection simplifies headphone-interface implementations. The FFX driver identifies the device as a digital-audio and class-D-driver solution intended for compact audio systems. Typical uses include multichannel active speakers, soundbars, compact home-audio systems, amplified speakers, and powered audio accessories where several channels require coordinated volume, filtering, equalization, and output control. The I2C interface is particularly useful in consumer products because the host can configure processing parameters, update volume smoothly, invoke muting, and respond to headphone-jack detection through a serial control link. Designers should treat the filter, equalizer, modulation, and output-stage settings as a coordinated system rather than configuring each feature independently. Signal integrity, exposed-pad layout, thermal management, and decoupling should follow the manufacturer datasheet recommendations, especially where multiple PWM channels operate continuously. Verify the complete external-component and filter configuration in the target amplifier and enclosure system. This page consolidates the verified manufacturer feature description, distributor pricing and availability, package information, practical application guidance, and the available substitution evidence. It explicitly separates documented STA321TR capabilities from parameters that remain unavailable in the supplied source data, enabling engineers to make faster sourcing and design decisions without treating unverified specifications as guaranteed facts.

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STA323W13TR - 2.1-Channel 10V 40W Audio System | STMicroelectronics
STA323W13TR

STA323W13TR - 2.1-Channel 10V 40W Audio System | STMicroelectronics

STMicroelectronics STA323W13TR is a 2.1-channel high-efficiency digital audio system with a 10 V to 36 V supply range, 24-bit DDX processing, 100 dB signal-to-noise ratio, and a 36-pin PowerSSO exposed-pad package. It supports input sample rates from 32 kHz to 192 kHz and can deliver up to 40 W in a suitable output configuration. A digital audio system combines digital signal processing, digital amplifier control, and a switching power-output stage in one IC. This integration sits between a digital audio source and loudspeaker outputs, reducing the number of discrete components required in compact home-theater, multimedia, active-speaker, and automotive entertainment systems. The integrated architecture also centralizes gain, modulation, protection, and power-stage control. The STA323W13TR supports three power-output configurations and accommodates 2.1-channel systems in which a subwoofer channel is combined with two main channels. Its 24-bit processing path provides a 100 dB signal-to-noise ratio and dynamic range, while the 32 kHz to 192 kHz input range covers CD, DVD, broadcast, computer, and modern high-resolution audio sources. Thermal protection, under-voltage protection, and short-circuit protection are integrated into the device. These safeguards are important because class-D power stages can develop high current during low-impedance loads, supply faults, or output-stage overstress. The PowerSSO-36 package provides an exposed thermal pad for transferring heat into the PCB copper area rather than relying on a separate heatsink in moderate-power designs. Typical applications include compact 2.1-channel active speakers, home-theater soundbar amplification, multimedia speaker systems, digital active loudspeakers, and embedded audio products. The IC is especially useful when the source already supplies a digital audio stream, because the digital processing and amplifier-control functions reduce the need for a separate codec, preamplifier, and class-D controller. Designers should confirm the selected output configuration, channel routing, speaker impedance, and allowable power before layout. The exposed pad, input/output capacitors, power-supply decoupling, and thermal copper must follow the manufacturer's reference layout. A thermal estimate should include the regulator dissipation at the actual supply voltage and load rather than relying only on the headline output-power rating. This product overview combines digital-audio system context, verified electrical highlights, drop-in replacement guidance, and implementation guidance. It is intended to help engineers evaluate power, routing, protection, thermal management, and package constraints before integrating the STA323W13TR into an audio product.

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STA32613TR - 2.1-Ch 100dB SNR DDX Digital Audio Amplifier | STMicroelectronics
STA32613TR

STA32613TR - 2.1-Ch 100dB SNR DDX Digital Audio Amplifier | STMicroelectronics

The STMicroelectronics STA32613TR is a 2.1-channel high-efficiency digital audio system that combines digital audio processing, digital amplifier control and a DDX Power Output Stage in a single PowerSO-36 slug-up package. Key headline parameters are a 10 V to 36 V supply range, 100 dB SNR and dynamic range, and 24-bit DDX processing with input sample rates up to 192 kHz. The device is supplied in tape and reel as the TR suffix variant. An all-digital audio amplifier (often called a digital input amplifier or D2A/D3A stage) is an integrated circuit that accepts a digital audio stream, performs DSP inside the silicon, and drives speakers through a switching power stage. It sits in the hierarchy above analog class-D controllers: digital input -> digital audio processing -> DDX power output stage -> power management IC -> semiconductor. Because the amplifier consumes I2S/SAI data rather than an analog line signal, it eliminates the analog pre-amplifier chain and its associated distortion and noise. The STA32613 offers three programmable power output configurations at 10% THD, giving the designer a choice of channel balance between the two main speakers and the subwoofer. Digital gain and attenuation are adjustable in 0.5 dB steps, and the DSP block provides up to four programmable 28-bit biquad EQ filters per channel plus bass and treble tone control. Autmodes provide preset volume curves, loudness compensation and preset EQ settings, which shortens firmware bring-up time. Internally, the part is a system-on-chip: a 24-bit digital audio interface, an effects processing engine, volume and tone control blocks, and the DDX class-D output stage with integrated high-voltage switching transistors and a slung thermal pad. The 100 dB SNR figure is specified over a wide band including digital input paths, so system noise is dominated by the speaker and passive network rather than the amplifier itself. Typical applications are active soundbars and home-theater subwoofer/active-speaker combinations, compact 2.1 speaker sets, soundbar sub-amplifier modules, PC and TV speaker amplification, and automotive or industrial audio modules that need a digital audio input and high efficiency in a small footprint. When designing with the STA32613TR, remember that the external LC output network and the thermal pad layout dominate acoustic performance and reliability; a PowerSO-36 footprint without a properly stitched thermal via array can overheat the DDX stage at sustained high output power. The I2S/SAI clocking must also be configured so that the digital input rate stays inside the supported range for the selected sample rate. This page consolidates distributor pricing, verified electrical parameters, drop-in alternatives and practical layout guidance for the STA32613TR into a single engineering reference that goes beyond the manufacturer datasheet.

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STA326JTR - 2-Channel DDX Power Amplifier | STMicroelectronics
STA326JTR

STA326JTR - 2-Channel DDX Power Amplifier | STMicroelectronics

The STMicroelectronics STA326JTR is a fully integrated 2-channel digital audio power processor with an on-chip DDX power output stage, supplied in a PowerSO-36 EPU package. It combines digital audio processing, digital amplifier control, and power-stage output in one device, providing a high-power all-digital amplification solution for compact audio systems. The verified distributor data identifies a 2-channel configuration, a 10 V to 36 V supply range, and a 36-pin PowerSO-36 EPU package. A fully integrated audio processor is an audio IC that accepts digital audio data, applies configurable processing and amplification control, and drives speakers through an integrated power output stage. Within the component hierarchy, the STA326JTR belongs to the digital class-D amplifier and audio-controller family, combining digital signal processing and power-management functions into a single package. This integration can reduce the number of separate signal-chain, control, and output-stage components required in a speaker system. The principal differentiators are its all-digital DDX architecture, integrated 2-channel power output, digital amplifier control, and 10 V to 36 V operating supply range. Combining these blocks avoids a discrete output-stage implementation while preserving digital control over the audio signal chain. The PowerSO-36 EPU format also provides a substantial thermal-dissipation surface, although final thermal performance still depends on copper area, the PCB thermal design, load impedance, output power, and ambient temperature. The STA326 architecture is intended to deliver high output power with high efficiency and controlled digital behavior. Its processing, control, and output functions operate as one integrated system rather than as unrelated blocks. This architecture is especially useful when a compact design requires accurate digital signal handling, flexible amplification control, and a high-power speaker output without implementing a conventional analog power-amplifier stage. Typical uses include powered speakers, active loudspeaker systems, compact home-audio products, multimedia speaker systems, and other equipment requiring two amplified channels. A system integrator must connect the digital audio interface, configure the device for the intended channel topology and speaker impedance, and implement the power-supply and output-network recommendations given in the manufacturer documentation. The device is also suitable for module-level audio designs where integrated processing and amplification simplify the signal path. The most important design consideration is thermal and power-supply planning. Operating near the verified 36 V upper supply limit does not establish permissible dissipation or output power by itself; those limits depend on the complete thermal environment and load conditions. Layout should provide the package with an effective thermal path, while the supply network should manage the switching and transient current generated by the integrated DDX output stage. This product summary combines the verified manufacturer and distributor information with practical selection and design guidance. It also identifies where additional engineering data are required rather than inventing output-power, frequency-response, protection, or thermal ratings that were not present in the supplied source material.

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