STA309A - 8-Channel Digital Audio Processor | STMicroelectronics
部品番号: STA309A ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STA309A 概要
A digital audio processor is a programmable semiconductor that manages one or more audio signal paths, applying channel routing, volume, equalization, decoding, or other processing functions under software or hardware control. Within the product hierarchy, the STA309A belongs to audio ICs, digital signal processors, and multi-channel digital audio processors. It is intended to work with a compatible DDX power device when a complete Class-D-style output stage is required.
Verified product information identifies the STA309A as a single-chip solution for digital audio processing and control in multi-channel applications. Its principal verified features include eight processing channels, support for several serial audio input formats, slave operation for standard digital-audio input, and DDX outputs for connection to external power-stage devices. These functions make it useful in home-theater systems, powered speakers, digital active speakers, and custom multi-way audio products.
The serial interface accepts standard digital audio streams from source components, while the processing core organizes those streams for eight-channel output. Configuration software and the correct external memory or control circuitry must be selected from the manufacturer datasheet; those detailed electrical and memory requirements are not included in the supplied search data. System designers should therefore avoid inferring unsupported sample rates, filter coefficients, or control-interface details without reviewing the official documentation.
Typical designs place the STA309A between an optical, coaxial, network, or other digital-audio source and a multi-channel DDX output stage. The source supplies a compatible serial stream, the processor applies the required channel processing, and a DDX power device reconstructs the amplified analog output. Software configuration is essential for routing, crossovers, equalization, and channel delays, so processor capability alone does not replace correct system implementation.
The primary design consideration is interface compatibility. Because the STA309A acts as a slave when receiving audio from standard digital-audio components, the master device, clocking arrangement, serial format, and signal mapping must all match. Board layout should preserve short, clean clock and data paths, provide stable decoupling, and route high-current DDX output signals separately from sensitive processor signals. Prototype validation should include clocking, channel assignment, mute behavior, and full-load output behavior.
This product record combines verified STMicroelectronics and distributor information with explicit data gaps, package requirements, application guidance, and sourcing links. Unlike a basic distributor listing, it identifies the processor role and emphasizes the engineering checks needed before using the 64-TQFP device as a drop-in element in a multi-channel audio design.
ドロップイン代替品: STA309A — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストSTA309A 最大定格＆電気的特性
| Product Type | Fully Integrated Digital Audio Processor |
| Number of Channels | 8 channels |
| Digital Audio Architecture | Multi-channel processing with DDX |
| Serial Audio Input | Supports multiple serial data formats |
| Audio Input Role | Slave when receiving standard digital-audio input |
| Output Capability | DDX output capability for a compatible DDX power device |
| パッケージ | 64-TQFP |
| Package Dimensions | 10 mm x 10 mm |
| 実装タイプ | Surface mount |
| Supplier Category | Audio Special Purpose |
| Core Function | Digital audio processing and control |
| Processor Classification | Digital signal processor |
STA309A 10 mm x 10 mm ピン配置ガイド
STA309A (10 mm x 10 mm パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: STA309A.
詳細は データシート をご参照ください。
主な用途
STA309A の用途: 8 件s: Powered Speaker and Soundbar Processing, Home Theater Processor, Digital Active Speaker System, Multi-Way Crossover and Equalization, USB and Network Audio Source Integration, Professional Line and Distributed Audio, Automotive Multi-Channel Audio Concept, Digital Audio Development and Evaluation Platform.
Powered Speaker and Soundbar Processing
The STA309A is suited to powered speakers and soundbars because it combines 8-channel digital audio processing with DDX output capability in a single processor. A compatible digital source can provide serial audio while the STA309A handles configured multi-channel signal paths before driving external DDX power devices. The verified slave role means the source must establish the required clock relationship. Engineers should confirm serial format, channel routing, amplifier selection, and startup behavior in a prototype, since the available data does not establish universal interoperability with every source or DDX stage.
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Home Theater Processor
An 8-channel home-theater processor can use the STA309A where an all-digital signal chain and coordinated channel processing are desired. The processor is positioned between a compatible digital audio source and a multichannel DDX output stage, allowing channel routing and other configured processing to occur before power amplification. Its 64-TQFP package supports compact integration but requires careful fanout and layout. The implementation must be validated against the selected receiver interface, amplifier timing, channel map, and system-specific processing requirements rather than relying only on channel count.
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Digital Active Speaker System
The STA309A can form the control center of a digital active-speaker system that receives a standard digital-audio stream and distributes eight processed channels to compatible DDX output stages. This architecture is useful when woofer, midrange, tweeter, surround, or additional zones require coordinated digital control. Because the STA309A operates as a slave for standard digital-audio input, the source device must supply compatible clocks and data. Firmware-defined routing and delay behavior must be verified because those detailed processing parameters are not present in the supplied excerpts.
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Multi-Way Crossover and Equalization
The STA309A is relevant to multi-way crossover and equalization designs because its verified 8-channel architecture can support separate digital processing paths before power amplification. Configurable signal routing may be used for driver-band allocation, delay, and tonal correction when supported by the complete product design. Actual filter count, coefficient formats, latency, and update mechanisms are not provided in the search excerpts and must be confirmed in the manufacturer documentation. Hardware validation should measure each output for channel identity, phase, gain, and synchronization.
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USB and Network Audio Source Integration
The STA309A can be used downstream of a digital source when a product must convert network, USB, optical, or another digital-audio input into controlled multi-channel DDX outputs. A source converter first translates the host interface into a compatible serial audio stream, and the STA309A receives that stream as a slave before performing configured channel processing. This separation can simplify product architecture, but electrical and protocol boundaries must be explicit. Clock isolation, ground strategy, supported sample rates, and format conversion must be verified from complete manufacturer documentation before board design.
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Professional Line and Distributed Audio
An 8-channel processor can support distributed-audio or professional line-array concepts where multiple independently addressed outputs are required. The STA309A could receive digital audio and use its processing functions before conversion to high-power DDX amplification. Its usefulness depends on deterministic channel mapping, synchronization, and stable clocking across the source and processor. Because no verified latency, output-rate, or thermal specifications were supplied, system designers must obtain the full datasheet and test worst-case processing configurations before defining synchronization or operational latency requirements.
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Automotive Multi-Channel Audio Concept
The STA309A may be evaluated for multi-zone automotive audio concepts because it offers eight digital audio channels and DDX output capability, but the supplied evidence does not confirm AEC-Q100 qualification. Automotive production use therefore requires explicit manufacturer qualification, temperature, EMC, reliability, and supply-chain documentation for the exact ordering code. The digital architecture can fit distributed cabin zones or speaker channels, yet clocking and EMI constraints are significant. Treat this as a concept evaluation until all automotive compliance and operating limits are verified.
おすすめ
Digital Audio Development and Evaluation Platform
The STA309A is well suited to an evaluation platform for experimenting with eight-channel digital routing, DDX output integration, and source-interface compatibility. Developers can use the platform to observe clock behavior, mute sequencing, channel assignment, and communication with a compatible power stage before integrating the processor into a finished product. The 64-TQFP package is not beginner-friendly, so a manufacturer-referenced design or carefully recreated schematic is preferable. Bring-up should begin with interface checks before full power-stage testing to protect the external DDX devices.
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おすすめ製品の概要
エンジニアリング参考データ: STA309A — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 |
|---|---|
| Brand | STMicroelectronics |
| Package | 64-TQFP |
| Package Dimensions | 10 mm x 10 mm |
| Processing Channels | 8 channels |
| Product Type | Fully Integrated Digital Audio Processor |
| Output Architecture | DDX output capability |
| Serial Audio Input | Multiple serial data formats |
| Input Device Role | Slave for standard digital-audio input |
| Drop-In Status | Original device |
主な差別化要因
- Eight-channel digital processing integration （vs Generic single-channel codec architectures)
- Purpose-built DDX output capability （vs Traditional analog-output processor designs)
- Defined slave behavior for standard digital-audio sources （vs Processor families requiring a different source-clock topology)
設計ノート
Treat the serial-audio clock, data, and any associated control signals as a matched interface group. Because the verified datasheet excerpt states that the STA309A is a slave, route the external master clock cleanly, avoid unnecessary stubs, use series damping where waveform integrity requires it, and keep return paths continuous. Validate timing and signal levels at the actual pins because the supplied excerpts do not provide complete voltage or timing tables.
Separate processor supply distribution from DDX power-stage routing. Place local decoupling at the package supply pins, provide adequate ground-plane continuity, and isolate switching output-current paths from serial-audio and control traces. Exact capacitor values and voltage ratings cannot be prescribed from the supplied data; derive them only after reviewing the official power architecture, output-device recommendations, and layout reference.
Design the 64-TQFP layout with serviceable fanout and continuous ground references beneath the device where the package and board stackup permit. Keep DDX outputs away from clock, data, and reset paths, and match interface geometry to the selected external devices. Before fabrication, compare every ball or lead assignment and exposed thermal feature against the current official package drawing rather than the abbreviated distributor package label.
Do not treat a 64-TQFP package as proof of drop-in compatibility. A substitute must match the complete pinout, supply requirements, audio formats, clock behavior, control protocol, firmware ecosystem, and DDX output expectations. Also do not infer that the processor directly drives speakers without a suitable external power device; the verified product information describes it as a processor and DDX interface component.
コンプライアンス情報
The supplied verified search excerpts do not contain explicit compliance declarations for STA309A. No assumption was made from the manufacturer name or package type.
