STA529Q - 2 x 100mW Class-D Stereo Amplifier | STMicroelectronics
MPN： STA529Q ✗ 停產STA529Q 概覽
A Class-D audio amplifier is a switching power amplifier that uses pulse-width modulation to deliver audio energy through a class-D output stage. The STA529Q combines that output stage with digital audio processing, creating a multichannel device within the amplifier IC category. Its FFX architecture supports analog or digital input configurations while providing 96 dB dynamic range.
The STA529Q delivers two 100 mW output channels and supports I2C, I2S, mute, volume control, and depop functions. Its digital and analog power supplies are specified at 1.95 V, while its overall supply-voltage range is 1.8 V to 3.3 V. These features make it suitable for compact audio systems requiring local digital signal processing without a separate audio processor.
Its 52-pin VFQFPN surface-mount package integrates the stereo Class-D output drivers and multichannel digital audio functions. The listed industrial temperature grade supports use in commercial and industrial equipment, although the obsolete lifecycle status means new production qualification and long-term availability should be confirmed before committing a design.
Typical uses include portable speakers, compact consumer audio equipment, digital audio source modules, and embedded multimedia systems. Digital sources can connect through I2S, while a host controller can configure volume and mute behavior through I2C. The 8 kHz-to-192 kHz sample-rate range supports voice, general-purpose audio, and high-resolution audio playback.
Designers should preserve the 1.8 V to 3.3 V operating range and distinguish the 1.95 V digital and analog supply specifications from that broader range. Because no verified pin mapping or public pricing was included in the supplied data, board-level integration must be checked against the manufacturer datasheet before layout, and any obsolete-part sourcing plan should include an explicit lifecycle review.
This page consolidates the verified distributor listing, package and electrical identifiers, application guidance, lifecycle information, and engineering cautions for the STA529Q. It also identifies where pin-level, pricing, and replacement information requires separate confirmation rather than presenting unverified assumptions as component facts.
直接替換替代品，適用於 STA529Q — 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。
此產品無可直接替換的替代品。
申請替代品STA529Q 最大額定值與電氣特性
| Product Type | 2-channel Class-D stereo audio amplifier and digital audio processor |
| Output Power | 2 x 100 mW |
| Supply Voltage Range | 1.8 V to 3.3 V |
| Digital Power Supply | 1.95 V |
| Analog Power Supply | 1.95 V |
| Dynamic Range | 96 dB |
| Supported Sample Rates | 8 kHz to 192 kHz |
| Input Interface | Analog or digital input |
| Digital Audio Interface | I2S |
| Control Interface | I2C |
| Audio Features | Depop, mute, and volume control |
| Output Stage | FFX Class-D driver |
| 封裝 | 52-VFQFPN, 8 x 8 mm |
| 安裝類型 | Surface mount |
| Number of Terminals | 52 |
| Temperature Grade | Industrial |
| 生命週期狀態 | Obsolete |
| Output Load | 16 ohm |
| 輸出配置 | Stereo, 2 channels |
STA529Q 52-vfqfpn, 8 x 8 mm 腳位配置指南
STA529Q（52-vfqfpn, 8 x 8 mm 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： STA529Q.
請參閱 資料表 以查看完整腳位配置。
典型應用
STA529Q 適用於 6 應用s: Compact Digital Speaker Module, Portable Consumer Audio Product, Voice Assistant and IoT Speaker, Digital Audio Source Card, Industrial Audio Control Panel, Multimedia Embedded System.
Compact Digital Speaker Module
The STA529Q fits a compact speaker module that accepts I2S audio and needs local two-channel amplification without a separate digital audio processor. Its two 100 mW Class-D outputs and 8 kHz-to-192 kHz sample-rate support cover voice playback, multimedia playback, and small stereo speakers, while the 52-VFQFPN 8 x 8 mm package limits board area. The primary design trade-off is its obsolete status, so the module should use controlled inventory and require lifecycle approval. Pin assignment, output-filter values, and power sequencing must be confirmed from the manufacturer datasheet.
推薦
Portable Consumer Audio Product
The STA529Q is applicable to battery-powered portable products requiring two low-power audio outputs and digital volume management. Its 1.8 V to 3.3 V supply range supports compact integrated systems, while I2C control allows a host processor to adjust volume or engage mute. The 2 x 100 mW rating is intended for small speakers and should not be extrapolated to higher-impedance or larger drivers. Because the verified lifecycle status is obsolete, a new portable platform should compare currently supported amplifiers before freezing the bill of materials.
推薦
Voice Assistant and IoT Speaker
The STA529Q can serve as the output and processing section of a voice-assistant or IoT speaker when the system receives digital audio and requires short local processing functions. Its I2S input, I2C control, mute, depop, volume control, and 96 dB dynamic range support a clean signal path from a host or network-audio processor to two miniature speakers. Its low 2 x 100 mW output level fits near-field transducers rather than room-filling speakers. Engineers should validate acoustic performance, thermal behavior, and the obsolete supply plan before deployment.
推薦
Digital Audio Source Card
The STA529Q is suitable for a digital audio source card that accepts I2S streams and drives local stereo monitoring outputs. Supporting sample rates from 8 kHz to 192 kHz allow the same platform to serve telephony, compressed-audio playback, and high-resolution content, provided the source format and clocking are accepted. The integrated 2.0 processor, volume control, mute, and depop functions reduce external control-component count. Its 52-VFQFPN package still requires careful escape routing and a verified 52-pin land pattern.
推薦
Industrial Audio Control Panel
The STA529Q can support a compact industrial audio-control panel that plays confirmation tones, status messages, or two-channel announcements through small speakers. The listed industrial temperature grade makes it relevant to equipment operating outside consumer-only environments, although the exact operating-temperature limits require datasheet verification. I2C configuration supports controlled mute and volume behavior, while digital input can reduce analog routing. Because the part is obsolete, industrial equipment programs should document traceability, long-term availability, and an approved redesign path.
推薦
Multimedia Embedded System
The STA529Q fits an embedded multimedia subsystem where two low-power speakers reproduce system notification, media, and interface audio. Its integrated digital processor can reduce the need for a separate audio-control IC, and the 1.8 V to 3.3 V operating range aligns with low-voltage embedded rails. The 2 x 100 mW output rating limits use to compact speaker loads, so impedance and filter compatibility must be checked carefully. Lifecycle approval is especially important for industrial or medical-adjacent systems that expect long maintenance lives.
推薦
推薦產品摘要
工程參考資料，適用於 STA529Q — 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 |
|---|---|
| Brand | STMicroelectronics |
| Package | 52-VFQFPN, 8 x 8 mm |
| Output Power | 2 x 100 mW |
| Supply Voltage Range | 1.8 V to 3.3 V |
| Digital Power Supply | 1.95 V |
| Analog Power Supply | 1.95 V |
| Dynamic Range | 96 dB |
| Supported Sample Rates | 8 kHz to 192 kHz |
| Input Configuration | Analog or digital input |
| Control Interface | I2C |
| Digital Audio Interface | I2S |
| Lifecycle Status | Obsolete |
主要差異化特點
- Integrated multichannel audio processing (對比STA5620A)
- Broad digital sample-rate support (對比STA309A)
- Digital and analog input flexibility (對比STA5630)
設計說明
The verified operating range is 1.8 V to 3.3 V, with 1.95 V identified for both digital and analog power supplies. Do not treat the nominal 1.95 V values as a separate permissible range. Confirm which rails require 1.95 V, how analog and digital supplies may be sequenced, and the bypass network in the manufacturer datasheet. The STA529Q is obsolete, so any power-supply redesign must be validated against the original reference circuit before schematic changes are approved.
The 52-VFQFPN package has no exact pinout in the supplied evidence, so PCB work must begin with the manufacturer datasheet rather than a generic 52-pin QFN drawing. Confirm pin-1 location, exposed-pad treatment, ground connections, output-driver connections, I2S routing, I2C routing, and decoupling positions. Use the datasheet reference layout and keep sensitive audio paths away from switching-node and supply-return currents wherever the 8 x 8 mm footprint permits.
Do not treat general amplifier listings as proof that the STA529Q, STA5620A, STA5630, STA309A, STA308A, or STA304A share a pin-to-pin footprint. The supplied cross-reference results do not verify package dimensions, pin names, output power, voltage limits, or I2C behavior. Likewise, the obsolete designation requires a documented sourcing and obsolescence plan. Before schematic capture, obtain the complete datasheet and approve both electrical compatibility and long-term procurement.
合規資訊
The supplied results identify an industrial temperature grade but do not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations.
