STA32013TR - 2.1-Channel 24-Bit DDX Audio Processor | STMicroelectronics
料号： STA32013TR ✗ 停产STA32013TR 概述
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.
直接替换替代料： STA32013TR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料STA32013TR 最大额定值与电气特性
| Product Type | Audio Fully Integrated Processor |
| DDX Architecture | 2.1 channels |
| Audio Processing Resolution | 24 bit |
| Signal-to-Noise Ratio | >100 dB |
| Minimum Input Sample Rate | 32 kHz |
| Maximum Input Sample Rate | 192 kHz |
| Control Interface | I2C |
| Number of Channels | 3 channels |
| Channel Configuration | 2.1 multichannel |
| 封装 | 28-SOIC (0.295 inch, 7.50 mm width) |
| 引脚数量 | 28 pins |
| 安装类型 | Surface Mount |
| Packaging | Cut Tape (CT) |
| 工作温度范围 | -20 °C to +125 °C (TJ) |
| 生命周期状态 | Obsolete (EOL) |
| Lead-Free Status | Lead Free |
| RoHS 状态 | unknown |
STA32013TR 28-soic (0.295 inch, 7.50 mm width) 引脚配置指南
STA32013TR（28-soic (0.295 inch, 7.50 mm width) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： STA32013TR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STA32013TR 适用于 6 应用s: Automotive Digital Audio Head Unit, Consumer-Audio Preamplifier, Direct Digital Amplification Signal Chain, High-Resolution Audio Source Interface, Multichannel Active Speaker Controller, Legacy Audio Equipment Repair.
Automotive Digital Audio Head Unit
The STA32013TR fits a legacy automotive digital-audio head unit because it combines three processed channels in a 2.1 arrangement, 24-bit audio resolution, and input sample-rate selection from 32 kHz to 192 kHz. Its I2C control interface can connect the processor to a host controller for configuration, channel routing, and operating-mode control, while the documented -20 °C to +125 °C junction-temperature range covers industrial temperature conditions. The principal limitation is lifecycle: the device is obsolete, so an existing platform may retain it for repair or controlled continuation, but a new automotive program should verify qualification records and pursue an active replacement. Clocking, ground partitioning, EMI filtering, and the external DAC architecture must also be validated against the original design.
Consumer-Audio Preamplifier
The STA32013TR is appropriate for a legacy consumer-audio preamplifier that requires digital channel management before conversion to an analog power-amplifier stage. Its three-channel, 2.1-channel architecture can support a multichannel signal path, while the greater-than-100 dB SNR provides a useful dynamic-range figure for high-fidelity positioning. I2C enables configuration from a system controller instead of requiring dedicated control logic. The 28-SOIC package is compatible with conventional surface-mount assembly, but engineers should reserve adequate routing space for clean digital-audio traces and verify external converter requirements. Because the processor is obsolete, it is best suited to an already validated platform or maintenance inventory rather than a new high-volume consumer product.
Direct Digital Amplification Signal Chain
The STA32013TR can serve as the digital signal-processing element in a direct-digital-amplification signal chain because the verified product classification identifies direct digital amplification among its intended uses. Its 24-bit DDX processing and selectable 32-192 kHz input rates provide the digital-audio foundation before power amplification. The processor does not by itself establish the final output-stage topology, so system designers must match it to suitable external converters and amplification circuitry. Decoupling, clock routing, and digital-audio trace integrity remain critical because upstream processing quality cannot compensate for a noisy or unstable power environment. Lifecycle qualification should be completed before production commitment because no verified drop-in modern replacement was identified.
High-Resolution Audio Source Interface
The STA32013TR is usable in a high-resolution audio source interface when the source can operate at a supported rate between 32 kHz and 192 kHz. The processor's 24-bit format preserves high-resolution digital samples while its three-channel capability supports a 2.1-channel presentation path. I2C provides a practical configuration mechanism for a source controller, and the greater-than-100 dB SNR specification helps establish a measurable quality target for the processing stage. Integration still requires a compatible serial-audio interface, valid master clock, suitable external DACs, and an uninterrupted ground and supply strategy. The obsolete lifecycle status makes this a legacy or redesign-bridge application rather than the preferred choice for a new high-volume source product.
Multichannel Active Speaker Controller
The STA32013TR can serve an active-speaker controller when the system requires centralized digital channel selection before power-amplifier modules. Its 2.1-channel, three-output arrangement is well matched to a speaker topology containing two full-range channels and one additional output, subject to confirming the exact channel-routing behavior in the manufacturer documentation. The I2C interface allows the main processor to adjust operating parameters, and the 24-bit processing format supports high-quality digital distribution. In a compact enclosure, the 28-SOIC package simplifies surface-mount assembly, although thermal exposure of surrounding amplifiers must be managed carefully. Because the audio processor is obsolete, use it in retained designs only after confirming supply quality and validating the complete amplifier-control interface.
Legacy Audio Equipment Repair
The STA32013TR is especially relevant to repairing or maintaining legacy audio equipment that already uses its established 2.1-channel, 24-bit DDX architecture. Matching the original processor preserves the proven channel-routing, sampling-rate, and I2C-control design rather than introducing conversion issues into an already functioning system. The documented 28-SOIC package and -20 °C to +125 °C junction-temperature specification help identify suitable replacement stock, while the greater-than-100 dB SNR specification gives technicians a useful post-repair performance reference. Procurement should focus on traceable, genuine obsolete inventory. After installation, verify supply rails, clocking, I2C communication, channel outputs, and thermal behavior because no verified pin-compatible substitute has been established.
工程参考数据： STA32013TR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Package | 28-SOIC (0.295 inch, 7.50 mm width) |
| Brand | STMicroelectronics |
| DDX Architecture | 2.1 channels |
| Audio Processing Resolution | 24 bit |
| Signal-to-Noise Ratio | >100 dB |
| Input Sample Rate Range | 32 kHz to 192 kHz |
| Control Interface | I2C |
| Operating Temperature Range | -20 °C to +125 °C (TJ) |
| Lifecycle Status | Obsolete (EOL) |
| Mounting Type | Surface Mount |
关键差异点
- Integrated 2.1-channel DDX processing （对比 Generic 28-SOIC audio processor)
- Broad selectable input-rate range （对比 CD-rate-only audio processor)
- Documented high dynamic-range target （对比 Lower-SNR legacy audio processor)
设计说明
Do not treat the obsolete lifecycle status as a minor sourcing detail. The verified data identifies STA32013TR as EOL, so a new design should first confirm whether the exact processor, its clock source, external converters, and control firmware can be supported. A package-count match is not sufficient evidence of drop-in compatibility: pin names, supply levels, clock ratios, reset requirements, register addresses, and digital-audio signal polarity must all be compared before any replacement is approved.
Route the digital-audio and I2C signals as compact, continuous paths away from switching-power nodes and loudspeaker output stages. Provide short ground-return paths and place local decoupling close to the device's supply pins. Keep clock routing symmetrical and isolate it from sensitive analog inputs. The supplied information does not include the complete pin table or manufacturer layout recommendations, so the final arrangement must follow the original datasheet and reference layout rather than relying on package dimensions alone.
Validate every supply rail against the original STA32013TR design before substituting or purchasing replacement stock. The verified data confirms an I2C-controlled, three-channel audio processor but does not provide its exact supply-voltage tolerances, quiescent current, or startup sequence. Measure current consumption, rail sequencing, and noise using the reconstructed original schematic. For obsolete inventory, add a controlled incoming-inspection step covering marking, soldering, corrosion, and functional testing before installation.
合规信息
The verified DigChip snippet states Lead Free Status: Lead Free. It does not provide explicit REACH, halogen-free, conflict-minerals, or AEC-Q100 qualification evidence. The automotive-grade field is therefore not_applicable rather than a claim that the device is unqualified for every automotive use.
