DETAILED DESCRIPTION
This TI reference design is for evaluating and designing automotive and other mobile e-Call systems.
e-Call systems interconnect dashboard audio annunciation with "speakerphone" features: a microphone and speaker, for controlling entertainment systems and providing voice audio functions for phone calls and navigation systems.
This design incorporates the 8W Class-D audio power amplifier circuit, with an I2S Audio CODEC, and USB-to-I2S bridge. Linked to the CODEC are a microphone as well as stereo line input jack. There are various options for configuration and a noise-filtering power supply to evaluate how power can be delivered to sensitive audio electronics within a power-noisy environment such as a car chassis.
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