STA308A13TR - 8-Channel 24-Bit Audio DSP | STMicroelectronics
MPN： STA308A13TR ✓ 啟用中STA308A13TR 概覽
A digital audio processor is a specialized signal-processing IC that operates on digital audio streams rather than directly amplifying an analog waveform. Within the broader hierarchy of DSP, audio DSP, and integrated circuits, it provides channel routing, volume control, equalization, sampling-rate handling, and multichannel processing. These functions are commonly used in home theater, professional audio, automotive infotainment, and powered-speaker products.
The DDX architecture supports eight channels of 24-bit processing with greater than 100 dB SNR and dynamic range. Selectable 32 kHz through 192 kHz input rates provide flexibility for CD-rate, high-resolution audio, and multichannel entertainment sources. Six DSD/SACD input channels extend the digital input capability beyond conventional PCM operation.
Programmable signal conditioning includes digital gain and attenuation from +58 dB to -100 dB in 0.5 dB steps, soft-volume updates, individual channel and master gain controls, and channel trim from -10 dB to +10 dB. Each channel can support up to ten independent 32-bit user-programmable biquad equalizers, allowing tonal correction without changing the external analog signal path.
Typical systems include multichannel A/V receivers, digital active loudspeakers, automotive audio controllers, home-theater processors, and professional sound equipment. The 64-pin TQFP provides enough external connections for multichannel digital audio, control, clocking, and power rails while supporting surface-mount manufacturing.
Designers should preserve the recommended clock, layout, grounding, and decoupling arrangements from the manufacturer datasheet. I2C configuration must account for the selectable device address, while software should handle the soft-volume update sequence to prevent audible gain discontinuities. The processor supports a -40 °C to 90 °C operating-temperature range according to the product listing.
This page combines the available channel-count, bit-depth, SNR, sampling-rate, gain-control, DSD/SACD, package, and temperature information with practical selection guidance. It also distinguishes verified drop-in candidates from related products that cannot be assumed to share pin compatibility.
直接替換替代品，適用於 STA308A13TR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： STA308A13TR （相同外形與佔位） — 差異在於 Package.
STA30813TR
✅ 直接替換聯絡詢價
查看資料表 →STA308A13TR 規格
| Product Type | Multichannel digital audio processor |
| DSP Architecture | DDX |
| Processed Channels | 8 channels |
| Processing Resolution | 24 bit |
| Signal-to-Noise Ratio | >100 dB |
| Dynamic Range | >100 dB |
| Input Sample Rates | 32 kHz to 192 kHz |
| DSD/SACD Input Channels | 6 channels |
| Digital Gain/Attenuation Range | +58 dB to -100 dB |
| Digital Gain/Attenuation Step | 0.5 dB |
| Channel Trim Range | -10 dB to +10 dB |
| Programmable Biquads per Channel | Up to 10 biquads |
| Biquad Processing Resolution | 32 bit |
| Control Interface | I2C |
| Selectable Device Address | Yes |
| 封裝 | 64-pin TQFP, 10 mm x 10 mm |
| 安裝類型 | Surface mount |
| 工作溫度範圍 | -40 °C to 90 °C |
| Storage Temperature Range | -40 °C to 150 °C |
| Packaging | Tape and reel |
STA308A13TR 64-pin tqfp, 10 mm x 10 mm 腳位配置指南
STA308A13TR（64-pin tqfp, 10 mm x 10 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： STA308A13TR.
請參閱 資料表 以查看完整腳位配置。
典型應用
STA308A13TR 適用於 6 應用s: Home Theater Audio Processor, Digital Active Speaker System, Automotive Infotainment Audio, Professional Multichannel Mixer, High-Resolution Network Audio Player, Multichannel Digital Speaker Hub.
Home Theater Audio Processor
The STA308A13TR fits a home-theater processing stage requiring eight 24-bit digital-audio channels and support for source rates from 32 kHz to 192 kHz. Its greater-than-100 dB SNR and dynamic range preserve low-level detail in movie and music program material, while soft-volume updates and per-channel trim help balance speakers. The six DSD/SACD inputs add value for high-resolution source compatibility. Integration requires validating serial-audio routing, clocking, latency, and amplifier-channel assignments in the manufacturer datasheet.
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Digital Active Speaker System
A digital active loudspeaker can use the STA308A13TR to apply channel-specific gain, attenuation, trim, and equalization before the power-amplifier stage. Eight 24-bit processing channels provide useful flexibility for multiway or multi-room systems, while the greater-than-100 dB SNR protects quiet passages and room-fading transitions. The 32 kHz-to-192 kHz range supports multiple digital-source classes. Designers should account for the processor's processing latency and preserve its recommended layout and decoupling arrangements.
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Automotive Infotainment Audio
The STA308A13TR can support centralized digital-audio routing and tone management in an infotainment head unit, where multiple source zones may require independent gain and equalization. Its eight processing channels, six DSD/SACD inputs, and selectable 32 kHz-to-192 kHz sample rates suit demanding multimedia configurations. The -40 °C to 90 °C operating range is relevant to automotive environments, but a production design must still verify electromagnetic, automotive-qualification, supply, and environmental requirements beyond the published operating range.
推薦
Professional Multichannel Mixer
The STA308A13TR suits a digital mixing or monitoring architecture that needs per-channel level management and programmable equalization. Up to ten independent 32-bit biquads per channel enable speaker correction, tonal shaping, and crossover-adjacent processing, while master and individual gain controls support straightforward balance control. Digital attenuation spans +58 dB to -100 dB in 0.5 dB increments, and soft-volume updates help manage level transitions. Clock synchronization and channel-latency alignment remain critical in a multi-device studio system.
推薦
High-Resolution Network Audio Player
A network or streaming audio player can use the STA308A13TR as the central digital conditioning stage for high-rate PCM and DSD/SACD sources. Selectable 32 kHz-to-192 kHz inputs accommodate several source formats, while six DSD/SACD channels broaden compatibility with premium content. The greater-than-100 dB SNR and dynamic range benefit low-level musical material, and the programmable biquads allow output-path compensation. The implementation should preserve the digital clock domain and use I2C address selection so multiple processors do not conflict.
推薦
Multichannel Digital Speaker Hub
The STA308A13TR is appropriate for a hub that receives several digital audio streams and prepares them for powered speaker channels. Eight 24-bit channels, six DSD/SACD inputs, and per-channel gain and equalization allow centralized configuration instead of separate fixed processing blocks. Sample-rate selection from 32 kHz to 192 kHz supports varied source conditions, while soft-volume updates can reduce audible level steps. A practical design must confirm connector routing, supported master-clock arrangements, I2C address selection, and output latency.
推薦
推薦產品摘要
工程參考資料，適用於 STA308A13TR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | STA30813TR |
|---|---|---|
| Package | TQFP-64, 10 mm x 10 mm | TQFP-64 |
| Brand | STMicroelectronics | STMicroelectronics |
| Product Description | Multichannel digital audio processor with DDX | High-performance DSP for audio processing |
主要差異化特點
- Broad multichannel processing capacity (對比STA30813TR)
- Expanded high-resolution digital input support (對比STA30813TR)
- Fine-grained digital level management (對比STA30813TR)
- Programmable per-channel equalization capacity (對比STA30813TR)
設計說明
Use the manufacturer datasheet's recommended multilayer-board stack-up, grounding plane, and high-speed digital-audio trace routing. Keep clocks and serial-audio signals short, avoid routing them adjacent to switching nodes, and provide continuous return paths beneath signal traces. The TQFP-64 package requires careful fanout from the fine-pitch leads; confirm the selected land pattern and assembly process against the package drawing before releasing artwork.
Apply the datasheet's recommended supply bypassing directly at the appropriate power and ground pins. Separate or minimize the return path of noisy supply currents, and verify the required voltage, tolerance, sequencing, and power-up conditions for every rail. Do not infer operating limits from the package drawing; use the electrical-characteristics tables to select the regulator and decoupling network.
Validate the master clock, serial audio, and control signals for the complete source-to-processor-to-converter chain. Confirm clock ratios, supported sample rates, signal polarity, and expected latency for every operating mode. When multiple processors or converters share timing, budget propagation delay and channel alignment across the system rather than evaluating each device in isolation.
Avoid treating the STA30813TR comparison as proof of unconditional software compatibility with the STA308A13TR. Before substitution, compare every power pin, clock pin, serial-audio pin, I2C pin, ground connection, register, interrupt, reset function, and format support. Also verify biquad resources and volume-control behavior, because these functions affect the amount of host software and recalibration required after replacement.
合規資訊
The available product information does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These values remain unknown rather than being inferred from the manufacturer or package type.
