STA326JTR - 2-Channel DDX Power Amplifier | STMicroelectronics
部品番号: STA326JTR ✗ 生産終了STA326JTR 概要
A fully integrated audio processor is an audio IC that accepts digital audio data, applies configurable processing and amplification control, and drives speakers through an integrated power output stage. Within the component hierarchy, the STA326JTR belongs to the digital class-D amplifier and audio-controller family, combining digital signal processing and power-management functions into a single package. This integration can reduce the number of separate signal-chain, control, and output-stage components required in a speaker system.
The principal differentiators are its all-digital DDX architecture, integrated 2-channel power output, digital amplifier control, and 10 V to 36 V operating supply range. Combining these blocks avoids a discrete output-stage implementation while preserving digital control over the audio signal chain. The PowerSO-36 EPU format also provides a substantial thermal-dissipation surface, although final thermal performance still depends on copper area, the PCB thermal design, load impedance, output power, and ambient temperature.
The STA326 architecture is intended to deliver high output power with high efficiency and controlled digital behavior. Its processing, control, and output functions operate as one integrated system rather than as unrelated blocks. This architecture is especially useful when a compact design requires accurate digital signal handling, flexible amplification control, and a high-power speaker output without implementing a conventional analog power-amplifier stage.
Typical uses include powered speakers, active loudspeaker systems, compact home-audio products, multimedia speaker systems, and other equipment requiring two amplified channels. A system integrator must connect the digital audio interface, configure the device for the intended channel topology and speaker impedance, and implement the power-supply and output-network recommendations given in the manufacturer documentation. The device is also suitable for module-level audio designs where integrated processing and amplification simplify the signal path.
The most important design consideration is thermal and power-supply planning. Operating near the verified 36 V upper supply limit does not establish permissible dissipation or output power by itself; those limits depend on the complete thermal environment and load conditions. Layout should provide the package with an effective thermal path, while the supply network should manage the switching and transient current generated by the integrated DDX output stage.
This product summary combines the verified manufacturer and distributor information with practical selection and design guidance. It also identifies where additional engineering data are required rather than inventing output-power, frequency-response, protection, or thermal ratings that were not present in the supplied source material.
ドロップイン代替品: STA326JTR — 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。
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STA326JTR 最大定格＆電気的特性
| Device Type | Fully integrated digital audio processor |
| Audio Channel Count | 2 channels |
| Amplifier Architecture | DDX all-digital power amplification |
| Integrated Functions | Digital audio processing, digital amplifier control, and DDX power output stage |
| Supply Voltage Range | 10 V to 36 V |
| パッケージ | PowerSO-36 EPU |
| Package Pin Count | 36 pins |
| 実装タイプ | Surface mount |
| Product Category | Audio Special Purpose |
| RoHS ステータス | RoHS3 compliant |
STA326JTR 36 pins ピン配置ガイド
STA326JTR (36 pins パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: STA326JTR.
詳細は データシート をご参照ください。
主な用途
STA326JTR の用途: 6 件s: Powered Stereo Speakers, Active Loudspeaker Systems, Multimedia Speaker Systems, Compact Home Audio Equipment, Digital Audio Amplifier Modules, Industrial Announcement and Control Speakers.
Powered Stereo Speakers
The STA326JTR fits a powered stereo-speaker design because it integrates 2-channel digital audio processing, digital amplifier control, and the DDX power output stage in one PowerSO-36 EPU device. The verified 10 V to 36 V supply range is useful for amplified speakers using a higher-voltage bus. Place the device where its package can dissipate heat effectively, and verify the permitted speaker impedance and continuous output power in the manufacturer documentation. Compared with a discrete analog output stage, the integrated solution reduces the number of functional blocks and centralizes digital control, but thermal design and supply-current capacity remain the main engineering constraints.
おすすめ
Active Loudspeaker Systems
An active loudspeaker can use the STA326JTR to consolidate digital audio processing, channel control, and power amplification into a compact signal path. Its 2-channel architecture aligns directly with left- and right-driver configurations, while the integrated DDX stage supports an all-digital amplification approach. The verified supply range reaches 36 V, but a designer should not equate that input limit with output power. Speaker impedance, thermal dissipation, protection behavior, and the power-supply design must be checked against the complete manufacturer data. The main benefit over a split processor-and-amplifier architecture is fewer interconnects and a more compact, synchronized digital control path.
おすすめ
Multimedia Speaker Systems
The STA326JTR is appropriate for multimedia speaker systems that need two amplified channels and digital signal handling in a compact enclosure. Integrating the digital processor and DDX power output can reduce board area compared with separate digital-audio and output-stage implementations. Its 10 V minimum operating voltage allows use from a suitably elevated internal supply, while the verified maximum of 36 V provides headroom for higher-voltage architectures. Designers must still account for startup behavior, supply decoupling, speaker-load constraints, and heat removal from the PowerSO-36 EPU package. A thermal test under the worst continuous audio load is essential because music content can produce sustained thermal stress.
おすすめ
Compact Home Audio Equipment
Compact home-audio products can benefit from the STA326JTR's integration of 2-channel processing, digital amplifier control, and a DDX output stage. The device supports a controlled digital audio path while reducing the component count and footprint required for a conventional processor plus separate power channels. The PowerSO-36 EPU package is suited to PCB-level integration, but enclosure temperature and nearby heat sources determine whether additional copper or airflow is required. Before fixing the design, verify the exact digital interface, supported audio formats, output filtering, and load limits from the manufacturer documentation. The verified 10 V to 36 V operating range does not by itself define output power or thermal ratings.
おすすめ
Digital Audio Amplifier Modules
The STA326JTR is well suited to module-level digital audio amplification where processing and output control must be combined within a restricted footprint. A module designer can use the 2-channel device to reduce external connections between an audio processor and power output, while preserving digital configuration flexibility. The 10 V to 36 V supply requirement means the module's converter and protection scheme must maintain the rail within that range under transient conditions. Layout should prioritize a short power loop, effective decoupling, and a continuous thermal path into the module chassis or PCB copper. The principal trade-off versus discrete output modules is reduced flexibility: the design must remain within the integrated device's loading, protection, and configuration envelope.
おすすめ
Industrial Announcement and Control Speakers
The STA326JTR can support industrial audio products requiring controlled 2-channel amplification, digital processing, and a compact implementation. Its 36 V maximum supply rating suits systems able to provide a regulated rail above the 10 V minimum, while the integrated DDX stage can simplify enclosure design. For announcement systems, designers must confirm whether the device's channel behavior, filtering, and protection support the intended use, because those details were not included in the verified snippets. Long operating hours and high ambient temperature make thermal validation especially important. Use the manufacturer's application and electrical data to determine acceptable load, output filtering, fault behavior, and maximum continuous dissipation before production.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STA326JTR — 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 |
|---|---|
| Package | PowerSO-36 EPU |
| Brand | STMicroelectronics |
| Audio Channels | 2 channels |
| Supply Voltage Range | 10 V to 36 V |
| Architecture | DDX all-digital amplification |
| Integrated Functions | Digital audio processing, digital amplifier control, and DDX power output stage |
| RoHS Status | RoHS3 compliant |
主な差別化要因
- Three major audio functions integrated in one device （vs Discrete processor and output-amplifier architecture)
- All-digital DDX output architecture （vs Conventional discrete analog output stage)
- Wide verified supply operating range （vs Lower-voltage portable audio designs)
設計ノート
Design the PowerSO-36 EPU thermal path before finalizing output power. The supplied data confirms the package but provides no junction-temperature, thermal-resistance, or dissipation limits, so those values must be taken from the manufacturer documentation. Preserve the recommended copper area, minimize thermal barriers, and validate the assembly at maximum continuous load and ambient temperature rather than relying on average audio power.
Size the supply network for the integrated DDX output stage across the verified 10 V to 36 V operating range. Place local high-frequency and bulk decoupling at the device pins with the shortest possible current path, and control supply transients so they remain inside manufacturer limits. Because output power and current limits are not present in the supplied snippets, use the complete datasheet rather than estimating them from supply voltage alone.
Route digital audio, control, power, and speaker-return paths to minimize coupling between sensitive digital signals and the high-current output network. Keep the PowerSO-36 thermal and power connections unobstructed, and follow the manufacturer reference layout for exposed-pad connection, output filtering, and test points. The supplied evidence does not include the pinout or recommended land pattern, so both must be checked against the official documentation.
Do not treat the STA326 family name as proof that every suffix is interchangeable, and do not infer the pinout from the 36-pin package count. Confirm the exact STA326JTR pin assignments, digital configuration method, speaker impedance, output-filter requirements, and protection behavior before layout release. A generic cross-reference result is not evidence of pin-to-pin compatibility for this highly integrated audio processor.
コンプライアンス情報
The supplied ics-audio.com component listing identifies STA326JTR as RoHS3 compliant. No verified evidence was supplied for REACH, AEC-Q100, lead-free status, halogen-free status, or conflict-mineral compliance.
