STA309A13TR - 8-Channel Digital Audio Processor | STMicroelectronics
料号： STA309A13TR ✓ 量产中STA309A13TR 概述
A digital audio processor is a specialized signal-processing IC that receives digital audio streams, applies decoding, routing, volume, and channel-control functions, and prepares the result for downstream power amplification. The STA309A belongs to the broader digital signal processor hierarchy and serves as the control and processing stage between digital audio sources and DDX-compatible power devices.
The STA309A13TR integrates eight-channel audio processing into one device and provides output capabilities for DDX power amplifiers. Its support for 192 kHz and 24-bit audio makes it appropriate for high-resolution home theater, multichannel amplification, digital active-speaker, and professional audio systems. The distributor description also identifies a 100 dB signal-to-noise rating and 1 W output capability.
This architecture allows a receiver, amplifier, or speaker system to centralize multichannel routing and processing before power amplification. Digital processing can reduce the number of discrete control functions required in the signal path, while DDX output compatibility provides a defined interface to compatible power stages. The exact clocking, interconnect, and configuration details should be taken from the manufacturer pin-description table and reference circuitry.
Typical applications include 7.1-channel home-theater amplification, six-channel digital active speakers, high-resolution multichannel audio receivers, and powered loudspeaker systems using DDX devices. In these systems, the processor handles digital multichannel content and coordinates it across the available output channels before the external power stage drives the transducers.
PCB implementation should preserve the recommended decoupling and signal-routing arrangement for the 64-TQFP footprint. Pay particular attention to power-supply integrity, exposed-pad thermal performance, digital input routing, and output-channel mapping. Use the manufacturer datasheet pin table when assigning every signal and programming the device.
This page combines the verified product identity, package information, multichannel capability, price handling, and application-focused engineering guidance. It also distinguishes the available drop-in option from functional substitutes so engineers can assess PCB reuse without mistaking a different audio architecture for a pin-compatible replacement.
直接替换替代料： STA309A13TR ——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： STA309A13TR （相同外形与封装尺寸） ——差异在于 Package, Product Type.
STA309A
✅ 直接替换联系询价
查看数据手册 →STA309A13TR 最大额定值与电气特性
| Product Type | 8-channel fully integrated digital audio processor |
| Number of Channels | 8 channels |
| 封装 | 64-TQFP (10 mm x 10 mm) |
| 引脚数量 | 64 pins |
| 安装类型 | Surface mount |
| Amplifier Output Capability | 1 W |
| Signal-to-Noise Ratio | 100 dB |
| Maximum Supported Sampling Rate | 192 kHz |
| Supported Audio Resolution | 24 bit |
| Surround Support | 6.1-channel and 7.1-channel |
| Digital Input Formats | Most digital audio formats |
| Output Interface | DDX-compatible output capability |
| Architecture | Single-chip digital audio processing and control |
STA309A13TR 64-tqfp (10 mm x 10 mm) 引脚配置指南
STA309A13TR（64-tqfp (10 mm x 10 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： STA309A13TR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STA309A13TR 适用于 6 应用s: 7.1-Channel Home Theater Amplifier, 6.1-Channel Digital Active Speaker, High-Resolution Digital Audio Receiver, Powered Loudspeaker System, Multichannel Digital Amplification Platform, Digital Speaker Development Platform.
7.1-Channel Home Theater Amplifier
The STA309A13TR fits a 7.1-channel home-theater processing path because it supports 8-channel operation, 7.1-channel formats, 24-bit audio, and sampling rates up to 192 kHz. It can receive the home-theater audio stream, perform multichannel processing and control, and provide DDX-compatible outputs to the amplifier channels. This architecture centralizes channel routing in one processor instead of distributing basic digital routing across separate devices. A practical implementation should pair the processor with compatible DDX power devices, clean supply rails, and carefully controlled clock and audio traces. The 64-TQFP footprint also requires a thermal-aware land pattern so the exposed pad can dissipate processor heat without creating an impedance discontinuity on adjacent signals.
推荐
6.1-Channel Digital Active Speaker
A six-channel digital active-speaker can use the STA309A13TR to receive, route, and control digital audio before power conversion. The device's explicit 6.1-channel support, eight-channel processing capability, and DDX output functions align with powered loudspeakers that divide surround, center, and front-channel amplification across multiple power stages. Using digital control before the amplifiers can simplify analog mixing and improve channel consistency. The design should validate the digital input format, sample rate, clock source, channel map, and DDX device timing as one complete signal chain. Local decoupling and short output routes are especially important because simultaneous multichannel operation can increase switching activity and supply-current demand.
推荐
High-Resolution Digital Audio Receiver
The STA309A13TR is appropriate for a high-resolution digital audio receiver that must route up to eight channels and preserve 24-bit content sampled at rates as high as 192 kHz. Its digital processing and control role allows decoding, routing, and channel management to occur before the output power stage, reducing the need for separate control logic. DDX-compatible outputs can then drive compatible power amplifiers with coordinated digital signaling. The implementation should use a low-jitter clock arrangement, isolate high-energy switching paths from audio signals, and verify all supported interface modes against the manufacturer configuration guidance. The processor's 64-TQFP package supports dense integration but demands accurate BGA-style thermal and escape-routing discipline.
推荐
Powered Loudspeaker System
A powered loudspeaker platform can place the STA309A13TR ahead of its digital power amplifiers, where the processor handles digital multichannel routing and channel-level control. Eight-channel capability supports systems with multiple drivers or independently amplified zones, while the 100 dB signal-to-noise figure provides a meaningful margin for high-fidelity reproduction. The 1 W output capability should not be interpreted as continuous loudspeaker power; actual amplification depends on the selected external DDX devices and their supply ratings. Designers should confirm output mapping, delay or synchronization requirements, and fault behavior in the application configuration. Short digital routes, solid reference grounding, and separate return paths will help preserve the processor's noise performance.
推荐
Multichannel Digital Amplification Platform
The STA309A13TR suits a reusable multichannel digital amplification platform built around DDX-compatible power stages. One processor can manage eight digital audio channels and provide a consistent control interface for playback, routing, and channel configuration. This is useful for modular home cinema, hospitality, conference-room, and compact professional installations where each zone requires coordinated amplification. The processor should be paired with power devices whose DDX behavior and timing match the complete output network. Design validation should include simultaneous-load testing, thermal review of the 64-TQFP land pattern, and checks for clock, power, and ground integrity under all channel combinations. Proper planning prevents digital processing from becoming the limiting noise or timing element in an otherwise high-quality amplifier chain.
推荐
Digital Speaker Development Platform
The STA309A13TR can serve as the digital-audio core of a speaker development platform used to evaluate DDX amplification, channel mapping, and high-resolution playback. Its support for 6.1-channel and 7.1-channel material, 24-bit resolution, and 192 kHz sampling enables test systems to investigate performance beyond CD-rate operation. Developers can compare multiple DDX output configurations while using the processor for centralized digital control and routing. A robust platform should expose clock and diagnostic signals, provide independent test points, and isolate the amplifier supply from the processor's sensitive supply sections. Before comparison testing, confirm channel alignment, supported digital formats, and device-specific timing requirements in the manufacturer documentation.
推荐
推荐产品汇总
工程参考数据： STA309A13TR ——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 | STA309A |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 64-TQFP (10 mm x 10 mm) | 64-TQFP (10 mm x 10 mm) |
| Channel Count | 8 channels | 8 channels |
| DDX Output Capability | Yes | Yes |
关键差异点
- Eight-channel digital processing with DDX output capability in one device （对比 STA309A)
- High-resolution multichannel support （对比 STA309A)
- Defined signal-integrity target （对比 STA309A)
设计说明
Route the STA309A13TR clock, digital-audio, control, and DDX outputs according to the manufacturer's reference layout. Keep the exposed-pad connection continuous for thermal and electrical performance, use short return paths, and avoid routing high-current amplifier outputs beneath the processor footprint. Where signals must change layers, provide nearby ground stitching and maintain the recommended reference-plane transition. Use the datasheet pin-description table to verify every connection and avoid assigning functions by pin position alone.
Separate processor supply conditioning from the switching and output-current demands of the external DDX power stages. Follow the manufacturer's recommended capacitor types, placement, and supply topology; placing bulk capacitance only at the power amplifier can leave the processor rail exposed to transient noise. Test startup and shutdown with all eight channels active, and check the rails at the device pins under maximum channel activity. Confirm actual supply and current limits from the manufacturer datasheet before selecting regulators.
The 64-TQFP footprint requires a thermal-aware land pattern and adequate copper around the exposed pad. Estimate junction rise from the actual processor dissipation, package thermal resistance, board copper, and ambient temperature rather than assuming that a small package remains cool. Avoid adding thermal vias where the pad connection or soldering process prohibits them, and apply the manufacturer's soldering profile. For compact powered-speaker products, validate thermal performance in the final enclosure rather than on an unrestricted test board.
Do not treat the STA309A13TR as a generic eight-channel codec: DDX timing, channel mapping, configuration, and boot behavior are integral to a successful design. Confirm the supported digital format, sample-rate constraints, clock configuration, firmware requirements, and external power-device compatibility before finalizing the architecture. Also avoid approving the base STA309A designation as a substitute solely from its family name; check the exact ordering suffix, package drawing, pin table, and programming interface for the intended production variant.
合规信息
Compliance status was not stated in the manufacturer or distributor records used for this page. Confirm current material and environmental declarations with STMicroelectronics before release.
