Design
Automotive audio amplifier in class AB form-factor reference design
The TIDA-00743 reference design from Texas Instruments is a small module designed for evaluation of a digital-input class-D audio amplifier in a system which has been designed for a typical class AB audio power amplifier module. This design demonstrates the reduction in power dissipation that a class D amplifier provides.
This design demonstrates how 2.1MHz operation of a TAS6424-Q1 enables a compact power amplifier solution.
Features
- Audio output power: 21W per channel at 1% THD+N.
- Meets automotive CISPR25 Class-5 EMI requirements.
- Wide power supply voltage range of 4.5 to 18V.
- 40V load dump protection.
- Small size: 42.3x53.5mm.
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