Automotive 4-channel class D amplifier reference design for head unit

The TIDA-00573 reference design provides a Class D based amplifier solution that allows it to be evaluated in the form factor of a typical Class AB amplifier.  The design is optimized to mitigate thermals associated with audio amplifiers and to minimize switching noises associated with Class D amplifiers.  This design is comprised of two parts.  The 1st highlights the audio amplifier module while the 2nd highlights the circuitry needed to incorporate it into a base board.  The pair of boards allows stand-alone performance testing of the design. 

Features

• Able to withstand load-dump conditions
• Size/Space optimized design
• CISPR-25 tested EMI
• Able to withstand Start/Stop operation down to 5.6V 

Parts Include:

TAS1020B     Stereo USB Audio Interface 
TAS5404-Q1   26-W Analog Single-Ended Input 4-Ch Class-D Amp w/Load Dump Protection and I2C Diagnostics
TL760M33-Q1  Automotive Catalog Single Output LDO, 500mA, Fixed(3.3V), Load Dump Protection 

Learn more by downloading the reference design below