Circuitos integrados

TMS320WP010PZ

TMS320WP010PZ - 16-Bit DSP, 80 MHz | Texas Instruments

The Texas Instruments TMS320WP010PZ is a 16-bit digital signal processor optimized for acoustic echo cancellation, line echo cancellation, and noise suppression, with an operating clock of 80 MHz in a 100-terminal LQFP package. The device is intended for communications equipment requiring real-time signal processing for AEC, LEC, ANS, and related acoustic-processing functions. A digital signal processor, or DSP, is a programmable processor architecture optimized for arithmetic operations on continuously sampled signals. In the broader semiconductor hierarchy, a DSP is a microcontroller-class embedded processor, a digital signal-processing IC, and ultimately a semiconductor designed for high-throughput mathematical computation. The TMS320WP010PZ applies that architecture to speech and audio paths where filtering, adaptive processing, and noise attenuation are performed in real time. The verified product information identifies a 16-bit DSP with an 80 MHz clock, CMOS technology, a 100-pin LFQFP package, and an industrial temperature grade. Its primary feature set includes acoustic echo cancellation for hands-free cellular-phone use in automobiles, line echo cancellation, and suppression of wind, engine, and tire noise. The square gull-wing package supports surface mounting and integration into compact communications and automotive infotainment electronics. The TMS320WP010 architecture is intended to execute signal-processing workloads efficiently and in real time. Compared with a general-purpose control path, a dedicated DSP can process sampled acoustic streams through the arithmetic pipelines required by echo and noise algorithms. The exact internal memory configuration, external memory interfaces, serial interfaces, clocking limits, and detailed electrical characteristics were not exposed in the supplied verified snippets and therefore require confirmation against the manufacturer datasheet before design release. Typical implementations include hands-free telephone systems, cellular-phone acoustic front ends, vehicle communication equipment, line-echo-canceling terminals, and embedded audio-noise-reduction platforms. In an automotive cabin, microphone-to-speaker feedback must be removed while wind, engine, and tire noise are attenuated. The device provides a dedicated processing option for these workloads rather than requiring the host controller to perform every filter operation itself. Designers should validate memory mapping, clock configuration, serial-audio interfaces, peripheral pin multiplexing, and the complete 100-pin pinout against the official Texas Instruments datasheet. PCB planning must preserve adequate power and ground connectivity and should follow the manufacturer package recommendations. Software validation should include echo-path convergence, convergence limits, stationary-noise behavior, and overload testing using the intended microphone and loudspeaker hardware. This product record combines verified manufacturer and distributor descriptions, package information, sourcing links, application context, and drop-in-family comparison data. It also distinguishes documented values from unavailable electrical details, helping engineers move from component selection to a controlled schematic and firmware validation process without treating unverified parameters as design guarantees.

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TMS32C6416EZLZA6E3

TMS32C6416EZLZA6E3 - 600MHz Fixed-Point DSP 532-FCBGA | TI

The Texas Instruments TMS32C6416EZLZA6E3 is a high-performance C64x fixed-point Digital Signal Processor (DSP) clocked at up to 600 MHz, delivering up to 4800 MIPS of processing throughput, packaged in a 532-ball FCBGA (23x23 mm) ZLZ package and rated for the extended industrial temperature range of -40C to +105C. A DSP (Digital Signal Processor) is a specialized microprocessor whose architecture is optimized for the mathematical operations common in signal processing - multiply-accumulate (MAC), FIR/IIR filtering, FFT, and convolution. Compared with general-purpose microcontrollers, DSPs feature wider datapaths, hardware MAC units, deterministic instruction cycles, and specialized memory architectures that sustain high data throughput. The C64x family specifically uses a VelociTI.2 Very Long Instruction Word (VLIW) architecture capable of issuing eight 32-bit instructions per clock cycle, making the C64x part of a hierarchy that runs: DSP -> VLIW DSP -> C6000 series -> C64x family -> TI digital signal processors. Key features include a VelociTI.2 VLIW core with eight functional units, dual 64-bit data paths per CPU on the C64x, integrated L1/L2 memory controller, a 32-bit EMIF for external SDRAM/SRAM, three multi-channel buffered serial ports (McBSPs), a 33-bit PCI interface, and dedicated VCP/TCP co-processors that accelerate 3G wireless channel decoding. According to TI product documentation, the ZLZ variant combines the C64x DSP core with on-chip L2 SRAM and a flexible set of peripherals. Typical applications include software-defined radio (SDR), 3G/4G baseband channel cards, real-time video transcoding, high-density voice/fax channel banks, professional audio processing, medical imaging front-ends, and military/aerospace signal intelligence. The PCI interface allows direct plug-in deployment on CompactPCI/cPCI carrier boards, while the EMIF and HPI support host-processor coupling. When designing with this device, allocate PCB area for the 532-ball FCBGA (1.0 mm pitch), provide at least four PCB layers with a continuous ground plane for thermal spreading, and follow TI's SPRA433 / SPRU401 guidance for JTAG, clock, and EMIF signal integrity. For new designs, consider the TMS320C6416T family which offers higher clock rates and is the recommended successor.

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TMS5701224CPGEQQ1

TMS5701224CPGEQQ1 - Hercules Safety MCU, 160MHz R4F, 1.25MB Flash | Texas Instruments

The Texas Instruments TMS5701224CPGEQQ1 is an AEC-Q100 qualified automotive-grade 16/32-bit RISC Flash microcontroller built on the ARM Cortex-R4F floating-point core with lockstep safety architecture, delivered in a 144-pin LQFP (PGE) 20x20 mm package. It operates at up to 160 MHz, integrates 1.25 MB Flash and 192 KB SRAM with ECC on both memories, and provides dual 12-bit ADCs, multiple CAN, LIN, SPI and UART interfaces for ASIL-D capable automotive and industrial safety systems. A safety MCU (Microcontroller Unit) is a processor IC that integrates a CPU, Flash, SRAM and safety peripherals with built-in diagnostic and redundancy features designed to meet functional-safety requirements such as ISO 26262 (ASIL-D) or IEC 61508 (SIL 3). Within the broader system hierarchy, the TMS5701224CPGEQQ1 belongs to the MCU -> microcontroller -> embedded processor -> semiconductor IC category. It is engineered specifically for safety-critical applications where single-point faults must be detected and the system must remain in a safe state under hardware fault conditions. Key differentiating features include dual ARM Cortex-R4F CPUs operating in lockstep for fault detection, parity and ECC on Flash and SRAM, dedicated Built-In Self-Test (BIST) logic for CPU and memory, loopback capability on peripheral I/Os, an integrated Floating Point Unit (FPU), two 12-bit ADC modules with up to 24 channels, three CAN controllers, multiple LIN/UART/SPI/I2C ports, and an Enhanced Pulse Width Modulation (ePWM) module for motor and power-conversion control. From a technical depth perspective, the lockstep CPU compares outputs of two parallel cores cycle-by-cycle; any divergence triggers an error reaction within one clock, enabling ASIL-D systematic capability and hardware fault coverage. The ECC on Flash uses Single-Error Correction / Double-Error Detection (SECDED) while SRAM uses single-error correction for transient and permanent fault detection. The 1.25 MB Flash is split into a 1 MB program bank plus a 256 KB data Flash region for EEPROM emulation. Typical applications include automotive Electric Power Steering (EPS), Electronic Stability Control (ESC), Anti-lock Braking Systems (ABS), Advanced Driver Assistance Systems (ADAS) sensor fusion, Battery Management Systems (BMS), industrial Safety PLCs, and railway signaling where functional-safety certification is mandatory. When designing with this device, allocate a 4-layer PCB stackup with a continuous ground plane beneath the LQFP to dissipate the typical 1-2 W dissipation; route JTAG and trace signals on inner layers to avoid coupling on the safety island. Always use TI's SafeTI Diagnostic Library to validate IEC 61508 and ISO 26262 compliance claims for your end-equipment safety case. This page synthesizes distributor pricing, drop-in Hercules family alternatives, and practical design notes not consolidated in the TI datasheet alone, giving safety engineers a faster path from part selection to ASIL-D certification.

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TMS5701227CPGEQQ1

TMS5701227CPGEQQ1 - 160MHz Cortex-R4F Dual-Core MCU | Texas Instruments

The Texas Instruments TMS5701227CPGEQQ1 is a high-performance automotive-grade 32-bit RISC flash microcontroller from the Hercules TMS570 safety MCU family, based on the ARM Cortex-R4F processor with a 160 MHz dual-core lockstep architecture and 1.25 MB of integrated flash plus 192 KB of data SRAM, housed in a 144-pin LQFP (PGE) package measuring 20 x 20 mm. A safety microcontroller (MCU) is a microcontroller designed for functional-safety-critical applications, integrating hardware diagnostics such as dual CPUs in lockstep, built-in self-test (BIST) for CPU and memory, ECC on flash and SRAM, and peripheral parity/loopback features. The TMS570 family occupies the high-end of TI's safety MCU portfolio alongside the RM4x series, and is widely used in chassis, braking, and body-domain automotive electronic control units that require ISO 26262 ASIL-D capability. Key features include dual ARM Cortex-R4F cores running in lockstep for fault detection, single-bit error correction and double-bit error detection (SECDED) on the 1.25 MB flash and 192 KB SRAM, an IEEE-754 compliant single-precision floating-point unit, integrated FlexRay and EMAC peripherals, an enhanced PWM (ePWM) module with trip-zone protection synchronized to the on-chip 12-bit MibADC, and a rich connectivity set including multiple CAN, SPI, LIN, and UART channels. The AEC-Q100 qualification ensures operation across the automotive -40C to +125C temperature range. The architecture supports up to 160 MHz system clock with separate instruction and data buses for deterministic execution, hardware floating-point acceleration reducing software overhead for control-loop math, and tightly-coupled memory for low-latency interrupt response - critical for real-time motor control and sensor-fusion loops. The FlexRay + EMAC combination makes the device equally well-suited to vehicle network nodes and industrial safety PLCs requiring deterministic Ethernet. Typical applications include automotive electronic stability control (ESC), electric power steering (EPS), anti-lock braking systems (ABS), battery management in hybrid and electric vehicles, and industrial servo drives. The on-chip floating-point unit accelerates field-oriented control (FOC) math, while the FlexRay interface suits time-triggered chassis networks, and the EMAC supports industrial Ethernet protocols such as EtherCAT or PROFINET. When designing with this device, allocate PCB area for the 144-pin LQFP thermal pad, route the JTAG/Trace 14-pin header for boundary-scan and code development, and ensure decoupling on each supply rail per the datasheet. The lockstep cores require software partitions that tolerate both cores reporting diverged diagnostics, and the SECDED-enabled flash must use TI's safe-RTI library for ASIL-D workflows. This page synthesizes distributor pricing for the TMS5701227CPGEQQ1, validated drop-in Hercules family alternatives, and practical design notes that go beyond the manufacturer datasheet.

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TMUX136RSER

TMUX136RSER - 6GHz 2-Ch SPDT Analog Switch | TI UQFN-10

The Texas Instruments TMUX136RSER is a high-performance 6-GHz, 2-channel, 2:1 (SPDT) analog switch with powered-off protection, packaged in a 10-pin UQFN (RSE, 2.0 x 1.5 mm) and rated for a typical on-resistance of 9.5 ohm. It supports a wide VCC range of 2.3 V to 4.8 V and offers 1.4 pF typical on-state capacitance, making it ideal for high-frequency signal multiplexing. What is an analog switch/multiplexer? An analog switch (also called a multiplexer or MUX) is a solid-state semiconductor device that routes analog or digital signals between multiple input/output paths under digital control, using MOSFET transistors as the switching elements. Analog switches sit within the broader hierarchy of interface ICs -> signal routing -> semiconductor ICs. The 2:1 (SPDT) configuration means each of the two independent channels can connect a common pin to one of two possible inputs, a topology commonly used for signal multiplexing, source selection, and USB/MIPI/LVDS switching. Key features include a -3 dB bandwidth of 6 GHz, 1.4 pF on-state capacitance (Con), 9.5 ohm typical on-resistance (Ron), and 1.8 V-compatible control inputs that interface directly with low-voltage processor GPIOs. Power-off protection forces all I/O pins into high-impedance mode when VCC is removed, protecting downstream components and preventing back-powering through the signal path. The flow-through pinout places inputs and outputs on opposite sides of the package, simplifying PCB routing. The architecture uses N-channel MOSFET pass transistors driven by a charge-pump-assisted gate driver, which achieves low Ron flatness across the input signal range and supports bidirectional signal paths. The 6 GHz bandwidth enables pass-through of high-speed differential protocols such as USB 2.0, MIPI DSI/CSI, and LVDS without significant insertion loss. Typical applications include tablet and notebook signal multiplexing, smartphone MIPI/DSI switching, USB 2.0 high-speed signal routing, and audio signal path selection. The device also finds use in test equipment and instrumentation where high-bandwidth signal multiplexing is required. When designing with this device, observe the absolute maximum ratings for analog signal voltage. Use controlled-impedance PCB traces (typically 50 ohm single-ended or 90 ohm differential) for high-frequency signals to preserve signal quality at the rated 6 GHz bandwidth. This page synthesizes distributor pricing, drop-in alternatives from TI and competitors, and practical design notes not found in the manufacturer datasheet alone.

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TMUX7208

TMUX7208 - 44V Latch-Up Immune 8:1 MUX | Texas Instruments

The Texas Instruments TMUX7208 is a precision 8:1 single-channel multiplexer designed for high-voltage, high-performance signal routing. It operates from a single supply of 4.5V to 44V, dual supplies of ±4.5V to ±22V, or asymmetric supplies such as VDD=12V and VSS=-5V. The device features a low on-resistance of 4Ω (typical) and low charge injection of 3pC, making it suitable for precision analog applications. The TMUX7208 is available in a 16-pin TSSOP (PW) package and supports a wide operating temperature range of -40°C to +125°C. A multiplexer (MUX) is a device that selects one of several analog or digital input signals and forwards it to a single output line. The TMUX7208 is an analog multiplexer, specifically an 8:1 configuration, meaning it routes one of eight input channels to a common output based on the state of three address pins and an enable pin. This functionality is essential in data acquisition systems, test equipment, and industrial automation where multiple sensors or signals need to be sampled sequentially by a single ADC or measurement circuit. Key features of the TMUX7208 include latch-up immunity, which prevents damage from overvoltage or ESD events, and 1.8V logic-compatible inputs, allowing direct interface with low-voltage microcontrollers without level shifters. The device supports high current up to 300mA (max), making it robust for various loads. The low on-resistance and charge injection ensure minimal signal distortion and glitches during switching. The TMUX7208 uses a precision architecture with a break-before-make switching mechanism, preventing momentary shorting between channels. The device also features an enable pin that, when low, disconnects all channels, providing a high-impedance state. This is useful for power-down or isolation scenarios. The wide supply range and latch-up immunity make it ideal for industrial and automotive environments where voltage transients are common. Typical applications include data acquisition systems, test and measurement equipment, industrial process control, and battery monitoring systems. The TMUX7208 can be used to multiplex multiple sensor inputs into a single ADC, reducing component count and cost. Its high-voltage capability allows direct connection to 24V industrial buses without additional level shifting. When designing with the TMUX7208, ensure that the supply voltages are within the specified range and that the input signals do not exceed the supply rails. Proper decoupling capacitors on the supply pins are recommended to minimize noise. The address and enable pins should be driven with logic levels compatible with 1.8V to 5V, as the device is 1.8V logic compatible.

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TMUX8108

TMUX8108 - 100V Flat RON 8:1 MUX | Texas Instruments

The TMUX8108 is a modern high-voltage analog multiplexer from Texas Instruments, offering a single-ended 8:1 configuration with flat on-resistance (RON) and latch-up immunity. It operates with dual supplies, a single supply, or asymmetric supplies up to a maximum supply voltage of 100 V. The device supports bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins, and all logic inputs support 1.8 V, 3.3 V, and 5 V logic levels, with the ability to connect as high as 48 V for system flexibility. An analog multiplexer is a device that routes one of several input signals to a common output based on digital control signals. In a single-ended 8:1 configuration, the TMUX8108 selects one of eight input channels and connects it to a single output. This functionality is essential in data acquisition systems, test equipment, and industrial automation where multiple sensors or signals need to be sampled sequentially by a single ADC or measurement circuit. The multiplexer acts as a signal router, enabling efficient use of expensive analog-to-digital converters and reducing component count. Key features of the TMUX8108 include a flat RON of 50 ohm, which minimizes distortion and ensures consistent performance across the input voltage range. The device provides latch-up immunity, preventing damage from overvoltage or overcurrent conditions. It supports a wide supply range up to 100 V, making it suitable for high-voltage industrial and automotive applications. The logic inputs are compatible with 1.8 V, 3.3 V, and 5 V systems, allowing direct interface with modern microcontrollers without level shifters. Technically, the TMUX8108 is built on a high-voltage CMOS process that enables low leakage currents and fast switching times. The flat RON characteristic is achieved through careful design of the switch architecture, ensuring that the on-resistance remains nearly constant across the entire analog input range. This reduces signal distortion and improves accuracy in precision measurement systems. The device also features break-before-make switching to prevent momentary shorting of channels during transitions. Typical applications include data acquisition systems, automated test equipment, industrial process control, and battery monitoring systems. In data acquisition, the TMUX8108 allows a single ADC to sample multiple sensor channels, reducing cost and board space. In battery monitoring, it can route individual cell voltages to a measurement circuit, enabling accurate state-of-charge estimation. The high-voltage capability makes it ideal for automotive 48 V systems and industrial 24 V or 48 V buses. When designing with the TMUX8108, ensure that the supply voltages are within the absolute maximum ratings and that the logic control signals are properly referenced to the logic supply. The device requires careful PCB layout to minimize parasitic capacitance and maintain signal integrity, especially in high-frequency applications. Additionally, consider the on-resistance and leakage current when calculating system accuracy, as these parameters affect the overall measurement error.

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TMUX8108PWR

TMUX8108PWR - 100V Flat RON 8:1 Analog MUX | Texas Instruments

The Texas Instruments TMUX8108PWR is a 100-V rated, flat on-resistance, single 8:1 (single-ended) analog multiplexer housed in a 16-pin TSSOP (PWR) package. It delivers a consistent on-resistance of approximately 50 ohm across the full analog signal range and supply conditions, supports single, dual, or asymmetric supplies up to 100 V total, and features latch-up immunity plus 1.8-V-compatible logic inputs. An analog multiplexer is a switching IC that routes one of several analog signal inputs to a single common output under digital control, forming part of the broader family of analog switches within signal-chain and power-management integrated circuits. Multiplexers are essential wherever many sensors, test points, or signal sources share a single downstream amplifier, ADC, or measurement instrument, saving board area, cost, and channel count on data converters. Key differentiating features of the TMUX8108 include its 100-V maximum supply rating, far above the 36 V ceiling of conventional CMOS multiplexers, its flat RON characteristic that minimizes signal-dependent gain error across the signal range, and latch-up immunity that protects the device in harsh industrial and medical environments where voltage transients are common. Control logic accepts 1.8 V, 3.3 V, and 5 V levels and, according to TI product documentation, logic inputs can be driven as high as 48 V, giving designers exceptional flexibility in interfacing with mixed-voltage systems. The device supports bidirectional analog and digital signals on the source (Sx) and drain (D) pins and provides break-before-make switching to prevent momentary channel shorting. Consistent analog parametric performance is maintained across the entire supply voltage range, simplifying design reuse from low-voltage to high-voltage systems. Typical applications include industrial programmable logic controller analog input modules, battery test and formation equipment, medical diagnostic instrumentation front ends, and automated test equipment (ATE) signal routing, all of which benefit from the high supply ceiling and rugged latch-up immunity. Designers should observe the total supply constraint of 100 V across VDD and VSS and verify signal swing stays within the supply rails; the flat RON makes channel-to-channel matching predictable even at high common-mode voltages. This page synthesizes verified distributor data, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet, with pricing referenced as of 2026-09-03.

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TMUX8108RUMR

TMUX8108RUMR - 100V 8:1 Analog Mux, 48Ohm | Texas Instruments

The Texas Instruments TMUX8108RUMR is a 100 V, flat RON, single 8:1 analog multiplexer with latch-up immunity and 1.8 V logic compatibility, housed in a 16-pin WQFN (4x4 mm, RUM) package with a typical on-resistance of 48 ohm. An analog multiplexer is a switching IC that routes one of several analog input signals to a single output channel under digital control. Within the signal-chain hierarchy, it sits between sensors or signal sources and amplifiers, ADCs, or measurement front ends, acting as a electronically controlled switch matrix. Multiplexer ICs belong to the broader family of analog switches, which themselves are part of the interface and signal-routing layer of power and data acquisition systems. Key features of the TMUX8108 include support for dual, single, or asymmetric supplies up to a maximum supply voltage of 100 V, low and flat on-capacitance behavior across the signal range, low OFF leakage current, and robust latch-up immunity that protects the device in harsh industrial environments. The 1.8 V-compatible logic inputs allow direct interfacing with modern low-voltage microcontrollers and FPGAs without level shifting. Technically, the TMUX810x family provides consistent analog parametric performance across the entire supply voltage range, meaning RON, leakage, and switching behavior remain stable whether the part runs from plus/minus supplies or a single high-voltage rail. This flat RON characteristic minimizes signal-dependent gain error in precision measurement paths, a common weakness of older high-voltage mux architectures. Typical applications include industrial programmable logic controller (PLC) analog input modules, automated test equipment (ATE) signal routing, battery test and formation systems operating at high cell voltages, and high-voltage data acquisition front ends. The 8:1 configuration suits multi-channel monitoring where several sense points share one precision ADC. A key design consideration is supply configuration: because the device accepts up to 100 V total supply, designers should verify signal swing stays within the supply rails and account for on-resistance times channel-current voltage drops in error budgets. This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet, giving engineers a complete selection resource in one place.

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TMUXHS4412IRUAR

TMUXHS4412IRUAR - 20Gbps 4-Ch 2:1/1:2 Mux/Demux | Texas Instruments

The Texas Instruments TMUXHS4412IRUAR is a 4-channel, 20 Gbps bidirectional differential 2:1/1:2 multiplexer/demultiplexer in a 42-pin WQFN (RUA, 3.5 mm x 9 mm) package with exposed thermal pad, providing an 8 ohm on-state resistance and a typical -3 dB bandwidth of 13 GHz across each high-speed lane. The device supports USB 3.2 Gen 2x2, USB 3.2 Gen 1, USB 2.0, DisplayPort 1.4, SATA, PCIe Gen 3, SAS, and MIPI DSI/CSI by routing two differential sources to a single differential sink or vice versa with sub-130 ns propagation delay and 50 ps intra-pair skew. A high-speed multiplexer/demultiplexer (mux/demux) is a passive analog switch that selects one of multiple differential input pairs to a single output pair, enabling a host controller to share one PHY across two connectors, two PHYs across one connector, or to switch between redundant high-speed data paths. In the signal chain hierarchy the mux/demux sits between the protocol physical layer (PHY) and the connector, providing galvanic isolation between channels while preserving signal integrity at multi-gigabit NRZ and PAM3/PAM4 signaling rates. The TMUXHS4412 implements bidirectional switching so the same device serves either mux (2:1) or demux (1:2) topology without firmware configuration. Key differentiating features include 20 Gbps per-channel data rate (enabling USB 3.2 Gen 2x2 with two channels aggregated), 50 ps intra-pair skew, 8 ohm RON, 0.45 pF typical on-capacitance, sub-130 ns propagation delay, and dual supply support with 1.71 V to 1.98 V core and 3.0 V to 3.6 V I/O. The 42-pin WQFN (RUA) package provides a 31 C/W thermal pad-to-ambient resistance and supports -40 C to +105 C industrial operation. The architecture uses a pair of differential CMOS pass gates per channel with an integrated charge pump to maintain low RON across the full signal swing, plus on-chip termination resistors selectable through SEL pins. The bidirectional design means the same part handles both upstream and downstream switching, simplifying inventory and reducing PCB layout differences between mux and demux placements. Typical applications include USB Type-C port multiplexers, DisplayPort dual-mode source switching, PCIe lane failover, SATA port multipliers, and front-panel USB-C routing on motherboards, docking stations, and embedded computing platforms. The wide 3.0 V to 3.6 V supply range makes it compatible with both 3.3 V I/O rail and modern sub-1.8 V core supplies. When designing with the TMUXHS4412, route the high-speed differential pairs as 90 ohm differential impedance with length matching to within 5 mils, place decoupling capacitors within 2 mm of each supply pin, and solder the exposed thermal pad to a thermal land on a high-K board to maintain the full -40 C to +105 C temperature range without additional vias. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet, including 8 ohm RON and 13 GHz bandwidth values verified from the TI TMUXHS4412 datasheet.

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TMUXHS4446RETR

TMUXHS4446RETR - USB-C 10Gbps Alt Mode Crossbar Mux | Texas Instruments

The Texas Instruments TMUXHS4446RETR is a high-speed bidirectional passive crosspoint switch (crossbar/Xbar) that switches USB 3.2 Gen2 SuperSpeed and DisplayPort 1.4/2.1 signals up to 10Gbps UHBR10 over a USB Type-C interface, housed in a 40-pin WQFN (6x3 mm) package with a typical on-resistance of 7 ohm. A crosspoint switch, also called a crossbar mux, is a type of analog signal switch that can route any of its input lanes to any of its output lanes in a non-blocking matrix fashion. Within the signal-routing hierarchy, it sits above simple SPDT analog switches and USB 2:1 muxes, offering full lane-level flexibility for multi-protocol interfaces. Crossbar muxes are key building blocks of USB-C Alternate Mode systems, where a single reversible connector must carry either USB SuperSpeed data or DisplayPort video depending on negotiation. Key features include support for 10Gbps data rates compliant with USB 3.2 Gen2 and DisplayPort UHBR10, a passive switch architecture that adds no signal retiming or protocol awareness, integrated switching for the low-speed SBU (Sideband Use) lines used by the DisplayPort auxiliary channel, and a 7-ohm typical on-resistance that minimizes insertion loss. The 4-circuit, 4:4 configuration maps directly onto the four SuperSpeed differential lane pairs of a USB-C connector. The passive, bidirectional architecture means the device does not distinguish between source and sink: signals pass equally well in either direction, simplifying orientation and role handling in USB-C designs. Wide, flat differential lanes are laid out inside the WQFN-40 to maintain controlled impedance and low crosstalk at multi-gigabit speeds. Typical applications include USB-C docking stations, laptop and tablet USB-C Alternate Mode ports, USB-C monitors and display adapters, and multi-function hubs that multiplex USB 3.2 Gen2 and DisplayPort 1.4/2.1 over the same connector. Design consideration: at 10Gbps, keep the passive high-speed lanes short, impedance-controlled, and decoupled from the switching-control logic; insertion loss and via stubs matter more than with low-speed muxes. This page synthesizes distributor pricing, package data, application guidance, and design notes not found in a single manufacturer datasheet.

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TMUXHS4446RETT

TMUXHS4446RETT - USB-C 10Gbps Alt Mode Crossbar Mux | Texas Instruments

The Texas Instruments TMUXHS4446RETT is a high-speed bidirectional passive crosspoint switch (crossbar, Xbar) that switches USB 3.2 Gen2 SuperSpeed and DisplayPort 1.4/2.1 (up to 10 Gbps UHBR10) signals over a USB Type-C interface, with 7-ohm typical on-resistance, a 6x4 mux configuration, and a 40-pin WQFN (6 mm x 3 mm) package with exposed pad. A crosspoint switch or crossbar mux is a switching matrix in which any input lane can be routed to any output lane, giving system designers complete flexibility in high-speed signal routing. In the USB Type-C ecosystem, crossbar switches sit between the SuperSpeed/sideband pins of the USB-C connector and a device's USB 3.2 or DisplayPort controller, resolving the orientation and alternate-mode ambiguity that the reversible Type-C connector introduces. As such, it belongs to the analog switch and multiplexer family within signal-switching ICs, sitting between the USB-C connector and the SoC in the system hierarchy. Key features include support for USB 3.2 Gen2 (10 Gbps) SuperSpeed lanes and DisplayPort 1.4/2.1 UHBR10 signaling, integrated low-speed SBU switching for DisplayPort auxiliary (AUX) channels, and a passive, bidirectional switch architecture that adds minimal signal degradation. The 7-ohm typical on-resistance minimizes insertion loss impact on high-speed differential pairs, helping preserve eye diagrams at 10 Gbps rates. Architecturally, the TMUXHS4446 is a passive FET-switch crossbar rather than an active redriver or retimer. This means it consumes minimal power, introduces no added latency, and does not regenerate the signal, so total channel budget must account for its on-resistance and capacitive loading. Passive switching makes it ideal when the host and device have adequate link budget and no equalization is required. Typical applications include USB Type-C docks and dongles that switch between USB 3.2 and DisplayPort alternate mode, notebooks and tablets routing DP 1.4/2.1 lanes to a USB-C port, monitors with USB-C inputs, and smartphone or mobile-compute platforms requiring USB-C orientation and alternate-mode switching. A key design consideration is that because the part is passive, total insertion loss across the connector, PCB traces, and switch must fit the USB 3.2 Gen2 or DP UHBR10 channel budget; keep routing short and impedance-controlled. Follow TI's datasheet layout guidance for the exposed-pad WQFN. This page synthesizes distributor pricing data, drop-in alternative analysis, and practical design notes that go beyond the manufacturer datasheet, giving engineers a single citable reference for the TMUXHS4446RETT.

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TP2274

TP2274 - 36V Quad 7MHz EMI-Hardened CMOS Op-Amp | 3PEAK

The 3PEAK TP2274 is a quad-channel, 36-V CMOS operational amplifier featuring EMI hardening (EMIRR of 84 dB at 900 MHz), 7-MHz gain-bandwidth product, 20-V/μs slew rate, and rail-to-rail output (RRO) swing in a 14-pin SOIC package. It operates from a single 2.7 V to 36 V supply (or dual ±1.35 V to ±18 V) and is unity-gain stable driving up to 100 pF of capacitive load, making it suitable for I/V converters, active filters, and transducer front-ends. A CMOS operational amplifier is a high-gain DC-coupled differential amplifier built on a complementary metal-oxide-semiconductor process. CMOS op-amps combine low input bias current (sub-pA to pA range), rail-to-rail output capability, and low quiescent current, and they form a hypernym hierarchy of linear IC -> amplifier IC -> operational amplifier -> CMOS op-amp. The TP2274 family (TP2271 single, TP2272 dual, TP2274 quad) is targeted at precision, low-voltage applications where EMI immunity is required, replacing general-purpose bipolar parts in noise-dense environments such as industrial sensor conditioning and motor-drive boards. Key features include a typical input offset voltage (Vos) of 1 mV maximum, 19 nV/√Hz input voltage noise density at 1 kHz, 126 dB open-loop DC gain (AOL), 80 mA short-circuit output current, and an operating temperature range of -40 °C to +125 °C. The TP2274 also offers 2 µV/°C offset drift and 900 µA typical quiescent current per amplifier, balancing speed with low power consumption for portable instrumentation. Internally, the TP2274 uses a CMOS input stage with an EMI-hardened front end and a class-AB output stage for rail-to-rail swing. Its 7-MHz GBW and 20-V/μs slew rate are tuned for medium-speed signal-chain applications rather than high-precision instrumentation, and the 84 dB EMIRR at 900 MHz allows the amplifier to reject RF interference from nearby switching regulators and wireless modules without rectification-induced DC errors. Typical applications include current-sensing I/V converters, multi-channel sensor signal conditioning, active filters in audio front-ends, and general-purpose signal amplification in industrial, automotive, and consumer systems. A common companion part is a high-precision ADC such as the ADS1256 for downstream digitization, or a low-dropout regulator to feed the analog supply rail. When designing with this device, keep input and feedback traces short to preserve the 7-MHz bandwidth and minimize parasitic capacitance, and add a small series resistor (10-50 Ω) at the output when driving more than a few hundred picofarads. Use a stable, low-noise supply on the analog rail to fully exploit the EMIRR figure. This page synthesizes distributor pricing, drop-in cross-references, and practical design notes not found in the manufacturer datasheet.

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TPA301D

TPA301D - 350mW Mono Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA301D is a 350 mW, mono, Class-AB audio power amplifier designed for low-voltage systems and internal-speaker drive. It supports 3.3 V and 5 V operation, uses a bridge-tied-load topology, and is supplied in an 8-pin SOIC package. At 3.3 V, the manufacturer specifies 250 mW continuous power into an 8 ohm BTL load at less than 1% THD+N throughout the voice band. The device includes shutdown operation with 0.15 uA quiescent current, thermal protection, and short-circuit protection, making it suitable for portable audio, voice interfaces, and compact embedded systems. An audio power amplifier is an integrated circuit that converts a low-level analog audio signal into sufficient current and voltage to drive a loudspeaker or other audio load. A mono Class-AB amplifier uses one signal channel, while the TPA301D BTL architecture places the load between two output nodes rather than connecting one output to ground. This arrangement can improve speaker drive efficiency while requiring correct differential output routing and suitable input/output decoupling. The principal verified features are 350 mW class output capability, 3.3 V and 5 V supply compatibility, an 8-pin SOIC package, low 0.15 uA shutdown quiescent current, and integrated thermal and short-circuit protection. The TPA301 family also offers a surface-mount PowerPAD MSOP option according to the TI product page, although the TPA301D orderable variant is identified as 8-SOIC by distributor data. The manufacturer explicitly states that no special bypassing, gain-setting, or stability adjustments are required merely because the supply is 3.3 V rather than 5 V; output power is the important operating consideration. Because the part is designed around low-voltage BTL audio drive, circuit layout should preserve the differential output topology and place required capacitors close to the device pins. The input and output networks should be checked against the manufacturer datasheet for the selected supply, gain, load, and operating mode. The device should not be selected solely by its nominal 350 mW label: continuous speaker power, distortion, thermal conditions, supply headroom, and available PCB area determine practical performance. Typical applications include portable voice boxes, compact speakers, personal-audio accessories, embedded audio modules, and low-voltage consumer products. In a 3.3 V system, the verified 250 mW into 8 ohms condition provides a useful baseline, while 5 V operation provides additional output capability. For applications requiring more power, a different amplifier class or package should be evaluated rather than assuming that a higher supply alone preserves the same thermal and distortion performance. A practical design tip is to validate the speaker impedance and wiring before layout approval. A BTL amplifier must never be configured like a single-ended amplifier with one output grounded. Review the TI datasheet for recommended input, bypass, feedback, output, and decoupling networks, then test worst-case low-supply, high-temperature, maximum-volume conditions. This page combines verified manufacturer and distributor information with practical selection guidance, datasheet-oriented FAQs, and engineering-oriented design notes. It is intended to help engineers identify whether the TPA301D fits a low-voltage mono-speaker design before committing to a PCB footprint or supply architecture.

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TPA301DGH

TPA301DGH - 350mW Mono Class-AB Amplifier | Texas Instruments

Texas Instruments TPA301DGH is a 350mW mono Class-AB audio power amplifier designed for low-voltage, bridge-tied-load (BTL) speaker systems. The device operates from a 3.3V supply and can deliver 250mW of continuous power into an 8Ω BTL load at less than 1% THD+N throughout the voice band. Its primary package designation is DGH, although the exact package dimensions and pin count are not confirmed in the supplied verified data and therefore are not inferred here. An audio power amplifier is an integrated circuit that converts low-level audio signals into current and voltage capable of driving a loudspeaker or other electroacoustic load. The TPA301 belongs to the Class-AB audio amplifier hierarchy, which sits within integrated amplifier ICs and the broader power management and analog signal-processing semiconductor categories. A BTL output arrangement uses both sides of the speaker to develop voltage swing while avoiding the need for a single-ended output coupling capacitor. The principal performance characteristics include 350mW nominal output power, operation from a 3.3V supply, and 250mW continuous output into an 8Ω BTL load. According to the Texas Instruments TPA301 product information, total harmonic distortion plus noise remains below 1% across voice-band frequencies under the stated operating condition. Although the amplifier is characterized through 20kHz, its operation is optimized for voice-band audio rather than high-fidelity full-range reproduction. The Class-AB output stage provides a practical compromise between conduction efficiency and signal linearity. Compared with a switching audio amplifier, the TPA301 avoids the high-frequency switching artifacts and electromagnetic interference commonly associated with converter-based power stages. Conversely, a linear Class-AB amplifier dissipates more power as the supply-to-load voltage difference increases, making load selection and supply voltage important during thermal and battery-budget analysis. Typical uses include portable speakers, voice-enabled personal audio products, compact sound modules, and low-voltage embedded audio systems. The 3.3V supply requirement aligns with portable equipment powered by regulated batteries or point-of-load rails, while the 250mW capability into 8Ω is suitable for small internal speakers. System designers must still verify speaker impedance, peak current, thermal rise, output distortion, and startup behavior against the complete manufacturer datasheet. When designing around the TPA301DGH, preserve the manufacturer-recommended input, bypass, and output-network layout. Do not infer a pin configuration or exposed-pad connection from the DGH ordering code alone. Confirm the exact package drawing, exposed thermal-pad requirements, maximum supply voltage, output-current limits, and operating-temperature limits against the current Texas Instruments documentation before releasing a PCB design. This page consolidates verified manufacturer and distributor information, current Rochester Electronics pricing, application guidance, design cautions, and substitution-status findings. It explicitly separates confirmed specifications from unavailable parameters so engineers can trace each decision to source data rather than relying on an unverified generic TPA301 listing.

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TPA301DR

TPA301DR - 350mW Mono Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA301DR is a 350 mW mono Class-AB audio power amplifier designed for 3.3 V and 5 V operation, with a bridge-tied-load output and an 8-pin SOIC package. The device delivers 250 mW continuously into an 8 ohm BTL load from a 3.3 V supply at less than 1% THD+N through the voice band. Its Class-AB architecture is intended for compact internal speakers where low supply voltage, simple integration, and adequate output power matter more than maximum efficiency. The TPA301DR family is specified for common 3.3 V and 5 V rails, while its shutdown behavior supports portable equipment. The bridge-tied-load topology drives the speaker differentially, eliminating the need for an output coupling capacitor in the typical application. However, the speaker terminals cannot be connected to ground or chassis ground because each output switches around the midpoint of the supply. According to the verified Texas Instruments product page and TPA301 datasheet, the device is optimized for low-voltage systems using internal speakers. The manufacturer emphasizes that output power is the principal consideration when comparing 3.3 V and 5 V operation; supply bypassing, gain settings, and stability do not require special changes between those rails. The SOIC-8 footprint supports conventional surface-mount assembly, while thermal design remains important because Class-AB output stages dissipate more power than switching amplifiers at low output levels. System designers should verify speaker impedance, gain, supply bypassing, thermal exposure, and shutdown polarity against the datasheet before production release.

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TPA302D

TPA302D - 300mW Stereo Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA302D is a 300 mW stereo, analog-input Class-AB audio power amplifier with two output channels and an 8-pin SOIC (D) package. It is designed for compact audio systems operating from 5 V and 3.3 V supplies. The manufacturer describes 250 mW continuous average output per channel into an 8-ohm load and 60 mW at less than 0.06% THD+N. A Class-AB audio amplifier is a linear power-amplifier category that combines an analog input signal with transistor output stages capable of driving speakers and other finite loads. The TPA302D belongs to the broader hierarchy of audio amplifiers, audio ICs, analog signal-conditioning ICs, and semiconductor devices. Its stereo architecture supports two audio channels while its analog inputs permit direct connection to conventional audio sources. Key features include shutdown control, internal mid-rail generation, thermal protection, and short-circuit protection. The device is also identified as a functional equivalent of the LM4880 in the supplied technical data. Its 8-pin SOIC package reduces board space and supports automated surface-mount assembly. The verified product information specifically identifies the amplifier as a 300 mW stereo Class-AB device with analog input. The TPA302 architecture uses separate left and right amplification paths to provide stereo output from analog input signals. The internal mid-rail feature can support single-supply audio architectures, while shutdown control allows the system to place the amplifier in a lower-power state when audio is not required. The datasheet and product listing also indicate compatibility with 5 V and 3.3 V operation, which makes the device relevant to portable equipment, small consumer audio products, and low-voltage embedded systems. Typical applications include compact stereo speakers, portable audio equipment, auxiliary audio products, USB or docking-system audio paths, and small embedded audio subsystems. The 8-ohm speaker-load target and 250 mW continuous average capability are suitable for low-to-moderate listening levels, although the available output power depends on supply voltage, load impedance, channel balance, thermal conditions, and signal level. Designers should verify the SOIC footprint, supply decoupling, output-filter requirements, speaker wiring, thermal rise, and shutdown polarity against the manufacturer datasheet before layout release. The device is not a Class-D switching amplifier, so its output-stage dissipation and analog signal integrity should be checked carefully in continuous-use designs.

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TPA302DR

TPA302DR - 300mW Stereo Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA302DR is a 300 mW stereo analog-input Class-AB audio amplifier with a 1.5 MHz bandwidth, 5.5 V maximum supply voltage, and an 8-pin SOIC package. It delivers 250 mW per channel into an 8-ohm load and provides 60 mW of continuous output power at less than 0.06% THD+N. Designed for compact audio systems, the TPA302DR combines stereo output, internal mid-rail generation, shutdown control, and thermal and short-circuit protection in a low-profile surface-mount package. A Class-AB audio amplifier is an analog signal-processing integrated circuit that uses push-pull transistor output stages to drive speakers or other low-impedance loads. The TPA302DR belongs to the broader audio-amplifier hierarchy, which includes stereo amplifiers, linear amplifiers, and semiconductor power amplifiers. Its Class-AB architecture provides continuous bipolar output rather than the pulsed output associated with Class-D designs, making it suitable for low-power portable, personal-audio, and auxiliary audio products. Key features include 300 mW stereo output capability, 1.5 MHz bandwidth, operation from 5 V and 3.3 V rails, internally generated mid-rail voltage, shutdown control, and thermal and short-circuit protection. The 8-pin SOIC package reduces board area and supports automated surface-mount assembly. These characteristics make the device useful where two analog audio channels must drive headphones or small speakers without the complexity of a switching amplifier and external mid-rail circuitry. The amplifier accepts analog left- and right-channel inputs and uses external gain-setting resistors to establish channel gain. According to the Texas Instruments TPA302 data sheet, the device is specified for operation from a 5 V supply and is also compatible with 3.3 V operation. Its internally generated mid-rail provides a convenient common return for single-supply audio signals, while the shutdown function can reduce supply consumption when the audio path is not active. Typical applications include portable speakers, headphone and headset drivers, personal-audio accessories, small consumer-audio systems, and compact embedded audio products. The 250 mW-per-channel capability into 8 ohms is appropriate for low-impedance transducers rather than high-power loudspeaker systems. System designers should confirm speaker impedance, amplifier gain, input coupling, output configuration, and power-supply headroom before finalizing the analog and layout design. A key design consideration is the distinction between the 300 mW headline output rating and the verified application condition of 250 mW per channel into 8 ohms. Allow for copper, nearby heat sources, enclosure temperature, and supply tolerance, and use the datasheet thermal information to assess reliable operation. This page synthesizes verified manufacturer and distributor information, engineering design notes, comparison data, and drop-in replacement guidance beyond the basic distributor listing.

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TPA311D

TPA311D - 350mW Mono Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA311D is a 350 mW mono Class-AB audio amplifier with bridge-tied-load to single-ended switching mode, specified for 3.3 V and 5 V operation and housed in an 8-pin SOIC package. It is designed for low-voltage audio paths where an internal speaker and external earphone may share the same system. According to the verified distributor listing, TPA311D is a one-channel mono Class-AB amplifier in an 8-SOIC package. A Class-AB audio amplifier is a linear audio amplifier whose output devices conduct for part of the signal cycle. In the audio-power hierarchy, it provides a relatively linear output with less switching-related EMI than many Class-D solutions, making it useful in compact voice, portable-device, and low-voltage speaker systems. The TPA311 family also supports bridge-tied-load and single-ended operating modes, allowing the device to serve internal-speaker and earphone paths with appropriate output configuration. The verified data identifies the TPA311 as a 350 mW mono audio power amplifier and highlights operation at 3.3 V and 5 V, wide power-supply compatibility, bridge-tied-load to single-ended mode control, integrated depop circuitry, and thermal and short-circuit protection. The manufacturer product page describes 250 mW continuous power into a bridge-tied 8-ohm load at less than 1% THD+N throughout voice-band frequencies when operated from a 3.3 V supply. These figures describe the TPA311 family context associated with TPA311D. The architecture is suitable for compact audio equipment where a low-voltage supply limits available output power. The integrated protection features help manage thermal and short-circuit conditions, while depop circuitry helps control output transients during startup or mode changes. Engineers should still validate speaker impedance, supply headroom, thermal dissipation, and the selected output topology against the manufacturer datasheet before releasing a production PCB. Typical uses include portable audio products, voice-enabled devices, small speaker systems, headphone or earphone interfaces, and embedded audio subsystems. The 8-SOIC package simplifies assembly for designs using conventional surface-mount production processes. Because the target is a legacy audio amplifier family, availability, lifecycle status, pricing, and exact electrical limits should be reconfirmed from current manufacturer and distributor data. A key design consideration is the difference between the family headline rating of 350 mW and the verified 3.3 V application condition of 250 mW into an 8-ohm BTL load at less than 1% THD+N. The circuit must be designed around the actual supply, load, package thermal behavior, and output mode rather than treating the headline power as an unconditional speaker rating. This page combines verified source data with structured engineering guidance and clearly identifies unavailable parameters.

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TPA311DG4

TPA311DG4 - 350mW Mono Class AB Amplifier | Texas Instruments

The Texas Instruments TPA311DG4 is a 350 mW mono audio power amplifier IC for low-voltage audio systems, operating from 3.3 V or 5 V and housed in an 8-pin SOIC surface-mount package. It is a Class AB amplifier that supports bridge-tied load (BTL) and single-ended (SE) operating modes, includes integrated depop circuitry, and provides thermal and short-circuit protection. An audio power amplifier is an integrated circuit that increases the voltage and current capability of an audio signal so it can drive a speaker or another defined load. In the broader hierarchy, the TPA311DG4 is a mono Class AB audio amplifier, an amplifier IC, an integrated circuit, and a discrete signal-processing component for low-voltage audio equipment. Its BTL architecture allows an internal speaker to be driven without a speaker-blocking capacitor, while SE mode supports external earphone operation. The device is specified for 3.3 V and 5 V operation, with a maximum supply voltage of 5.5 V. Its 350 mW output-power description makes it suitable for compact internal speakers and low-power audio paths. A distributor listing also reports 0.7 W nominal output power, but the manufacturer-linked search description identifies the TPA311DG4 specifically as a 350 mW mono audio power amplifier. System designers should therefore confirm the exact test conditions and load used in the manufacturer datasheet before sizing the speaker and supply. The TPA311 family combines a fully specified low-voltage operating range with BTL-to-SE mode control, integrated depop circuitry, and built-in thermal and short-circuit protection. These features make the amplifier appropriate for products using either 3.3 V or 5 V system rails. The 8-pin SOIC package also supports automated assembly and compact board layouts, although adequate copper and thermal layout remain necessary when continuous audio output causes appreciable internal dissipation. Typical applications include portable speaker systems, compact consumer audio products, and low-voltage equipment requiring an internal mono speaker plus an external headphone path. The part can also serve as the power stage in a larger audio subsystem when the design only requires a small speaker output. Its protection functions reduce system risk during abnormal load conditions, but they do not replace correct speaker impedance selection, supply decoupling, or thermal design. A key design consideration is the difference between BTL and SE mode. In BTL mode, the amplifier drives the speaker differentially and does not require an output coupling capacitor. In SE mode, one output is referenced differently to support an earphone load. Designers should follow the manufacturer configuration, component values, and decoupling guidance rather than assuming that the two modes have identical load, output-power, or stability requirements. This product page consolidates the verified manufacturer and distributor descriptions for the TPA311DG4, identifies the available pin-compatible family comparisons, and adds application guidance that is not presented as a substitute for the official electrical characteristics, absolute maximum ratings, and test-condition tables in the manufacturer datasheet.

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TPA311DR

TPA311DR - 350mW Mono Class-AB Amplifier | Texas Instruments

Texas Instruments TPA311DR is a 350 mW mono Class-AB audio power amplifier with bridge-tied-load and single-ended operating modes, specified for operation from a 3.3 V supply and supplied in an 8-pin SOIC package. It is designed to drive internal speakers or external earphones in compact, low-voltage audio systems. According to the manufacturer product page, the TPA311 family supports fully specified 3.3 V and 5 V operation, integrated BTL-to-SE mode control, integrated depop circuitry, and thermal and short-circuit protection. The R suffix identifies the taped-and-reeled ordering option, while the device itself is a single-channel Class-AB audio amplifier. An audio power amplifier is an integrated circuit that converts a low-level audio input into a higher-current signal capable of driving a loudspeaker or other transducer. The TPA311 belongs to the Class-AB amplifier hierarchy within audio amplifiers and power-management ICs. Its bridge-tied-load mode increases usable output voltage into a differential speaker, while single-ended mode allows the same device to drive an external earphone when the system requires a grounded output. Key features include 350 mW rated output capability, compatibility with 3.3 V and 5 V supplies, integrated BTL-to-SE mode control, integrated depop circuitry, and built-in thermal and short-circuit protection. These features make the device suitable for portable audio, voice terminals, personal-audio products, and other compact systems in which a single-speaker or earphone output is needed without a large external amplifier module. The architecture is optimized for low-voltage operation. At a 3.3 V supply, the manufacturer documentation describes 250 mW continuous output into an 8-ohm BTL load at less than 1% THD+N across voice-band frequencies. The lower output-power figure reflects the device's 3.3 V operating condition; the family-level headline rating is 350 mW. BTL operation suppresses the DC output offset at the speaker and can provide greater output swing than a conventional single-ended amplifier. Typical applications include portable media players, personal audio accessories, voice-call terminals, compact speakers, and low-voltage embedded audio products. The TPA311DR can be selected when the board uses an 8-pin SOIC footprint and requires integrated protection rather than a discrete output stage. A key design consideration is output-mode configuration: the mode-control function must be connected or configured as required by the manufacturer reference design for the intended BTL or SE load. Input and output decoupling, speaker-return routing, thermal copper, and clean grounding are essential for low distortion and stable operation. This page consolidates verified manufacturer and distributor information, drop-in candidate screening, application guidance, and practical PCB considerations. It also distinguishes explicitly sourced facts from unavailable specifications, helping engineers make a defensible design decision without relying on a generic distributor listing alone.

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TPA321D

TPA321D - 700mW Mono Class-AB Audio Amp | TI

The Texas Instruments TPA321D is a 700 mW mono analog-input Class-AB audio power amplifier with differential inputs, operating from 2.5 V to 5.5 V in an 8-pin SOIC package. It is designed for low-voltage systems that drive internal speakers through a bridge-tied-load output. An audio power amplifier is an integrated circuit that increases the voltage and current capability of an analog audio signal so it can drive a loudspeaker or other finite impedance. A Class-AB amplifier provides linear operation with lower crossover distortion than a traditional Class-B design. A differential input accepts signal voltage between two input terminals, while a bridge-tied-load output uses both amplifier outputs to develop voltage across the speaker without requiring a speaker-coupling capacitor. The TPA321 family is specified for 3.3 V and 5 V operation and supports a 2.5 V to 5.5 V supply range. At a 3.3 V supply, the manufacturer material states that the device can deliver 250 mW continuously into an 8-ohm bridge-tied load with less than 1% THD+N over the voice band. The TPA321D ordering option is supplied in the 8-pin SOIC package and supports a -40°C to +85°C operating-temperature range. Differential input architecture can help reject common-mode noise when the source is balanced or when noise appears equally on both input conductors. The bridge-tied-load topology places the speaker between OUT+ and OUT-, so neither output pin should be grounded merely to establish a common reference. Input, supply, and output stability components must be implemented according to the manufacturer datasheet to preserve stable operation and acceptable distortion. Typical uses include portable-device speakers, compact audio accessories, personal-audio products, and other low-voltage mono sound systems. The design is appropriate when a small internal speaker must be driven directly and board area is limited. At higher power or with a longer speaker connection, cable losses and load tolerance should be checked before release. Decoupling capacitors should be placed close to the supply pins, and input components should be arranged to minimize the audio trace area. Thermal performance depends on supply voltage, output power, speaker impedance, PCB copper, and ambient temperature. This page combines verified product information with purchasing guidance and design context. This data page distinguishes TPA321D from the broader TPA321 family, summarizes the electrically relevant evidence, and organizes sourcing and replacement questions. Values not explicitly supplied by the retrieved manufacturer or distributor data remain marked for verification rather than inferred.

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TPA321DG4

TPA321DG4 - 350mW Mono Class-D Audio Amp | Texas Instruments

The Texas Instruments TPA321DG4 is a 350-mW mono Class-D audio power amplifier with differential inputs, specified for both 3.3 V and 5 V operation, and supplied in an 8-pin SOIC (DG4) package. It delivers its rated output into a minimum 8-ohm speaker load, draws only 0.15 microamps in shutdown mode, and limits idle supply current to 1.5 mA maximum, making it well suited to portable and low-voltage audio equipment. A Class-D audio power amplifier is a switching type of linear audio output stage in which the transistor output devices are driven fully on or fully off, so that the amplifier dissipates far less power than an equivalent Class-AB stage at the same output level. Within the broader hierarchy of audio signal-chain ICs, the TPA321DG4 sits in the power-amplifier tier, downstream of the audio DAC or codec and upstream of the loudspeaker, converting a low-level differential analog signal into a rail-to-rail differential speaker drive. Key features include full specification across a 3.3 V and 5 V supply range, differential inputs that reject common-mode noise picked up from long source traces, 0.5 percent harmonic distortion, a maximum power dissipation of 725 mW, and a maximum load resistance of 8 ohms. Shutdown current of 0.15 microamps preserves battery life in portable equipment, while the industrial temperature grade supports extended ambient operation. Internally the device uses a charge-pump-assisted Class-D output stage with differential outputs, so each output pin swings around half the supply rail. Because the outputs are differential, a bridge-tied load sees the full rail-to-rail swing and delivers roughly four times the power of a single-ended arrangement at the same supply voltage. The gain-setting and input network are entirely passive, keeping the external bill of materials small. Typical applications include compact Bluetooth and portable speakers, headset and headphone drive, USB and Type-C powered audio accessories, small Bluetooth speaker modules, alarm and industrial buzzer drivers, and low-voltage voice-assistant or smart-home nodes where a 3.3 V rail is the only supply available. Design note: because the device has differential inputs and differential outputs, do not ground the input pins or tie the two output pins together. Place the input coupling capacitors and the input resistors close to the pins, route the differential pair as a tight pair to limit common-mode pickup, and terminate each output through its own LC filter network into the speaker. This page synthesizes distributor availability, pin-compatible drop-in alternatives, a parameter-by-parameter comparison, and practical layout and thermal notes that are not consolidated in the manufacturer datasheet itself.

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TPA3255DDVR

TPA3255DDVR - 315W Stereo Class-D Amplifier | Texas Instruments

The Texas Instruments TPA3255DDVR is a 315 W stereo, 600 W mono, analog-input Class-D audio power amplifier with an 18 V to 53.5 V supply range, supplied in a 44-pin HTSSOP DDV package. It is designed for high-power audio systems requiring efficient amplification and premium sound quality. The device supports two-channel stereo operation and can also be configured for mono use at higher output power. A Class-D audio amplifier is a switching power amplifier that uses transistor switching to deliver audio energy efficiently. In the broader hierarchy, a Class-D amplifier belongs to audio amplifiers, linear and nonlinear power amplifiers, and power-management semiconductor systems. Compared with a conventional linear audio amplifier, its switching architecture can reduce wasted power and heat while maintaining high output capability. The verified product information identifies 315 W stereo output, 600 W mono output, analog input, an 18 V to 53.5 V supply range, and a 44-pin HTSSOP package. The distributor listing also identifies the amplifier as a two-channel stereo Class-D device. These ratings make it suitable for professional audio, home-theater, public-address, multimedia, and other high-power sound systems where load capability and efficiency are important. Thermal design is central to using this amplifier because Class-D power stages can dissipate substantial heat at high output power. The DDV package provides a large thermal pad for board-level heat spreading, but the exact thermal resistance, output configuration details, protection thresholds, and application-specific limits must be taken from the manufacturer datasheet. The verified distributor information reports a 44-pin PowerTSSOP package and an operating-temperature range of 0 to 70 °C for the listed orderable part. Typical implementation uses analog audio inputs into the Class-D power stage, with speaker outputs driving stereo or bridged mono configurations. The amplifier is appropriate when the system supply is in the verified 18 V to 53.5 V range and the load is compatible with the manufacturer-defined output power conditions. Board layout, speaker wiring, grounding, thermal management, and protection circuitry should follow the TI datasheet and evaluation-board guidance. This product page combines verified Texas Instruments specifications, distributor package and sourcing information, application guidance, and verified cross-reference results. It distinguishes the high-power TPA3255DDVR from lower-power or functionally similar parts that may use different packages or pin configurations.

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