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TAS6422-Q1
- Qualified for Automotive Applications
- Audio Inputs
- 2 Channel I2S or 4/8-Channel TDM Input
- Input Sample Rates: 44.1 kHz, 48 kHz, 96 kHz
- Input Formats: 16-bit to 32-bit I2S, and TDM
- Audio Outputs
- Two-Channel Bridge-Tied Load (BTL), With Option of Parallel BTL (PBTL)
- Up to 2.1 MHz Output Switching Frequency
- 75 W, 10% THD Into 4 Ω at 25 V
- 45 W, 10% THD Into 2 Ω at 14.4 V
- 150 W, 10% THD Into 2 Ω at 25 V PBTL
- Audio Performance Into 4 Ω at 14.4 V
- THD+N < 0.03% at 1 W
- 42 µVRMS Output Noise
- –90 dB Crosstalk
- Load Diagnostics
- Output Open and Shorted Load
- Output-to-Battery or Ground Shorts
- Line Output Detection Up to 6 kΩ
- Runs Without Input Clocks
- AC Diagnostic for Tweeter detection
- Protection
- Output Current Limiting
- Output Short Protection
- 40 V Load Dump
- Open Ground and Power Tolerant
- DC Offset
- Overtemperature
- Undervoltage and Overvoltage
- General Operation
- EVM Passes CISPR25-L5 EMC Specification
- 4.5 V to 26.4 V Supply voltage
- I2C Control With 4 Address Options
- Clip Detection and Thermal Warning
The TAS6422-Q1 device is a Two-channel digital-input Class-D audio amplifier designed for use in automotive head units and external amplifier modules. The device provides two channels at 27 W into 4 Ω at 10% THD+N and 45 W into 2 Ω at 10% THD+N from a 14.4 V supply and 75 W into 4 Ω at 10% THD+N from a 25 V supply. The Class-D topology dramatically improves efficiency over traditional linear amplifier solutions. The output switching frequency can be set either above the AM band, which eliminates the AM-band interference and reduces output filtering and cost, or below AM band to optimize efficiency.
The wide supply-voltage range from 4.5 V to 26.4 V helps minimize audio artefacts in start-stop applications
The device incorporates all the functionality required to perform in the demanding OEM applications area. The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection AC-coupled tweeters to help to reduce test time during the manufacturing process.
The device is offered in a 56-pin HSSOP PowerPAD™ package with the exposed thermal pad up.
For a pin compatible four-channel devices see the TAS6424-Q1 device.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TAS6422-Q1 75-W, 2-MHz Digital Input 2-Channel Automotive Class-D Audio Amplifi datasheet | PDF | HTML | 2016/12/12 | ||
| 應用說明 | Class-D Amplifier External Load Diagnostics (Rev. A) | PDF | HTML | 2025/7/17 | |||
| Application brief | Diagnostics and Protections in Automotive Audio Systems (Rev. A) | 2019/9/24 | ||||
| 應用說明 | Inductor Selection Guide for 2.1 MHz Class-D Amplifiers (Rev. A) | PDF | HTML | 2019/9/5 | |||
| 技術文章 | How switching above the AM band eases automotive Class-D amplifier EMC designs | PDF | HTML | 2016/12/5 |
設計與開發
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PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development
PurePath™ Console 是一款高度整合且容易使用的音訊開發套件，專爲簡化音訊產品開發相關評估、配置和偵錯程序所設計。瞭解使用 PurePath™ Console 3 軟體有多簡單。
PurePath Console 的直覺式圖形介面無需進階音訊工程專業，因此讓音訊設計更加簡明直觀。在簡單易用的圖形介面中，實作 PurePath Console 的眾多進階控制功能，並以縮短產品開發時間為目標，為您實現高度最佳化的音訊性能、最低功耗和順暢系統整合。支援的裝置：
PurePath™ Console 1：PCM5142、TAS5721、TAS5729MD、TAS5731 和 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSSOP (DKQ) | 56 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。