Digital input two channel automotive audio amplifier

27th March 2019
Posted By : Alex Lynn
Digital input two channel automotive audio amplifier

The TAS6422-Q1 device from Texas Instruments 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 27W into 4Ω at 10% THD+N and 45W into 2Ω at 10% THD+N from a 14.4V supply and 75W into 4Ω at ten percent THD+N from a 25V 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 optimise efficiency.

The wide supply-voltage range from 4.5V to 26.4V helps minimise 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.

To find out more, click here.


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

Agile for Automotive 2019
15th May 2019
United States of America Detroit, MI
ELIV 2019
16th October 2019
Germany Bonn World Conference Center