STA30813TR - 8-Channel 24-Bit DDX Audio Processor | STMicroelectronics
料号： STA30813TR ✗ 停产STA30813TR 概述
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.
直接替换替代料： STA30813TR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STA30813TR （相同外形与封装尺寸） ——差异在于 Package.
STA308A13TR
✅ 直接替换联系询价
查看数据手册 →STA30813TR 最大额定值与电气特性
| Product Type | Multichannel Digital Audio Processor |
| DDX Channel Count | 8 channels |
| Processing Resolution | 24 bit |
| Maximum Input Sample Rate | 192 kHz |
| Variable Digital Gain Range | 24 dB |
| Digital Gain Step Size | 0.5 dB |
| Volume Control Step Size | 0.5 dB |
| Digital Limiter | Yes |
| 工作温度 | -40 °C to +125 °C (TJ) |
| 封装 | 64-TQFP (10 x 10 mm) |
| Terminal Count | 64 |
| Package Code | LFQFP |
| Package Shape | Square |
| Terminal Form | Gull wing |
| Package Height | 1.6 mm |
| 安装类型 | Surface mount |
| Temperature Grade | Commercial |
| Primary Function | Tone control circuit |
| Direct Digital Amplification | Supported application category |
| 生命周期状态 | Obsolete (EOL) |
STA30813TR 1.6 mm 引脚配置指南
STA30813TR（1.6 mm 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： STA30813TR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STA30813TR 适用于 6 应用s: Eight-Channel Digital Preamplifier, Powered Speaker Control Board, Home Theater Multichannel Processor, Digital Audio Mixer Module, Professional Active Speaker System, Audio Receiver Tone and Channel Control.
Eight-Channel Digital Preamplifier
The STA30813TR fits a legacy digital preamplifier that must balance and attenuate eight audio paths in one controller. Its eight 24-bit DDX channels, 24 dB variable digital-gain range, and 0.5 dB volume increments allow channel-level adjustment after digital conversion, while the digital limiter helps constrain signal excursions. Place the processor between the digital-audio input interface and the DAC stage, and use matched control settings to preserve consistent loudness across the channel bank. The obsolete lifecycle status means supply continuity and control-software support must be confirmed before starting a production build.
推荐
Powered Speaker Control Board
The STA30813TR can provide centralized level management for an eight-channel powered-speaker board. Its 24-bit digital processing and 0.5 dB step resolution support repeatable gain and volume changes without relying on a separate analog potentiometer network for every amplifier path. The digital limiter is useful when several channels reproduce correlated program material, provided its threshold and timing are tuned to the amplifier characteristics. Because the component is obsolete, an existing legacy board is the most predictable deployment scenario, with the original configuration method retained wherever possible.
推荐
Home Theater Multichannel Processor
The STA30813TR is suited to an eight-channel legacy home-theater preamplifier requiring coordinated level, tone, and limiter control. The processor supports 24-bit audio and input sample rates reaching 192 kHz, allowing it to sit behind a high-speed digital source and ahead of the DAC bank. Eight integrated channels simplify board partitioning compared with multiple discrete control devices, and 0.5 dB volume steps provide usable menu-level adjustment increments. Final design work must confirm the supported clocking, serial-audio format, and control protocol in the original manufacturer documentation.
推荐
Digital Audio Mixer Module
The STA30813TR can serve as the level-control section of an eight-channel digital mixer. Digital gain and volume adjustment are performed after the audio has entered the digital domain, which helps maintain channel matching and provides repeatable 0.5 dB control increments. The limiter function adds a final safety layer for signals that feed amplifier stages. Because this processor is an obsolete DDX device, it is best suited to maintaining an existing mixer architecture or a controlled legacy adaptation where the original control software and board interface remain available.
推荐
Professional Active Speaker System
The eight-channel architecture of the STA30813TR matches professional active-speaker systems that require uniform level control across multiple driver or zone paths. The processor applies up to 24 dB of variable digital gain with 0.5 dB increments and includes a digital limiter, allowing a single control device to coordinate multiple amplifier inputs. Using digital attenuation after conversion also helps reduce sensitivity to analog control-component variation. Because the lifecycle status is obsolete, procurement and configuration support require a planned legacy supply rather than standard new-design sourcing.
推荐
Audio Receiver Tone and Channel Control
The STA30813TR can implement centralized tone and channel-level control in a legacy multichannel audio receiver. Eight 24-bit DDX channels allow common processing parameters to be applied across surround, front, center, and auxiliary paths, while 0.5 dB volume steps suit user-interface adjustment increments. The digital limiter provides an additional control layer between the processor and the output amplifier section. Integration is practical only when the receiver already uses the supported serial-audio and control interfaces and when the obsolete component can be supported by an authorized legacy-supply channel.
推荐
推荐产品汇总
工程参考数据： STA30813TR ——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 | STA308A13TR |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 64-TQFP (10 x 10 mm) | 64-TQFP (10 x 10 mm) |
| Channel Count | 8 DDX channels | 8-channel DDX family device |
关键差异点
- Eight-channel digital processing in a single device （对比 STA308A13TR)
- Fine-grained gain and volume adjustment （对比 STA308A13TR)
- Digital limiter integrated into the audio processor （对比 STA308A13TR)
- High-rate multichannel audio capability （对比 STA308A13TR)
设计说明
Do not treat the STA30813TR as a generic 64-pin TQFP when creating a replacement board. Use the original manufacturer pin-description table to identify power, ground, clock, serial-audio, control, and configuration terminals. The available product information confirms the 64-terminal LFQFP outline but does not expose the individual pin names, so a generic symbol library entry can create subtle clocking or control-interface errors even when the PCB footprint is correct.
Size the power rails from the original electrical characteristics rather than from the processor category. The confirmed specifications establish eight 24-bit channels and operation up to 192 kHz, but they do not state the core supply voltage, I/O levels, or current consumption. Confirm those values, permitted sequencing, and the state of every rail during enable or reset before selecting regulators, decoupling capacitors, or digital-interface voltage thresholds.
Route serial-audio and clock signals as controlled-impedance nets, and place interface terminations or source-series resistors only where the original reference design calls for them. Because the device can process input rates up to 192 kHz, clock distribution quality and return-path continuity can affect channel synchronization and data integrity. Keep the processor, DAC interfaces, and clock source close together when the legacy layout permits, and keep high-current amplifier outputs isolated from processor clock routing.
Because the part is obsolete, preserve a complete hardware and software snapshot before beginning a repair or redesign. Archive the board schematic, firmware configuration, control-code values, limiter settings, and known-good test procedure. A drop-in board replacement is only credible after clock format, DDX configuration, serial interface, pin mapping, and control-sequence compatibility have all been documented; do not rely on the shared STA308 family naming convention alone.
合规信息
The available product information does not provide RoHS, REACH, halogen-free, or conflict-minerals declarations. AEC-Q100 qualification is not applicable to this commercial audio processor.
