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USB Type-C Audio Adapter Accessory Mode Reference Design

TIDA-00565

Overview

The USB Type-C™ Audio Adapter Accessory Mode Reference Design provides a solution for transmitting analog audio over the USB Type-C interface. This reference design demonstrates how to use the USB Type-C standard audio adapter accessory mode to transmit analog audio to system peripherals while still transmitting USB data through the same USB Type-C connector.

characteristic

● Supports analog audio via USB Type-C connector
● Low total harmonic distortion (THD) = <-85 dB (0.005%) at 1 Vpp
● Replace the larger 3.5mm audio jack with a smaller Type-C connector
● Protect microcontrollers from negative voltage fluctuations in analog audio
● Support USB power delivery

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Blockdiagram

Design Files

Documentation

USB Type-C Audio Accessory Mode Design Guide

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-08 21:33:59

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