TAS6424-Q1
- Advanced Load Diagnostics
- Runs without Input Clocks
- AC Diagnostic for Tweeter Detection with Impedance and Phase Response
- Easy to meet CISPR25-L5 EMC Specification
- Qualified for Automotive Applications
- Audio Inputs
- 4 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
- Four-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
- Host-Independent Operation
- Programmability for Flexible Production Line Testing
- Protection
- Output Current Limiting
- Output Short Protection
- 40-V Load Dump
- Open Ground and Power Tolerant
- DC Offset
- Overtemperature
- Undervoltage and Overvoltage
- General Operation
- 4.5-V to 26.4-V Supply voltage
- I2C Control With 4 Address Options
- Clip Detection and Thermal Warning
The TAS6424-Q1 device is a Four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency that enables a cost-optimized solution in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth
The TAS6424-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. The device provides four 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 filter size and cost, or below AM band to optimize efficiency.
For a pin compatible two-channel amplifier, see the TAS6422-Q1
The device is offered in a 56-pin HSSOP PowerPAD™ package with the exposed thermal pad up.
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檢視所有 8 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TAS6424-Q1 75-W, 2-MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier With Load-Dump Protection and I2C Diagnostics datasheet (Rev. B) | PDF | HTML | 2017年 10月 10日 |
| Application note | Inductor Selection Guide for 2.1 MHz Class-D Amplifiers (Rev. A) | 2019年 9月 5日 | ||
| Technical article | Why you should use a Class-D audio amplifier in your automotive infotainment syste | PDF | HTML | 2018年 1月 8日 | |
| EVM User's guide | TAS6424-Q1 EVM User's Guide (Rev. A) | 2017年 10月 20日 | ||
| Technical article | Forget the tiny homes craze – Have you heard about tiny inductors for automotive C | PDF | HTML | 2017年 10月 12日 | |
| Application note | Class-D Amplifier External Load Diagnostics | 2017年 1月 23日 | ||
| Technical article | How switching above the AM band eases automotive Class-D amplifier EMC designs | PDF | HTML | 2016年 12月 5日 | |
| Application note | LC Filter Design (Rev. A) | 2016年 11月 9日 |
設計與開發
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開發板
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使用指南: PDF
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參考設計
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|---|---|---|
| HSSOP (DKQ) | 56 | 檢視選項 |
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