Jim,
To connect a microphone or UART through a USB Type-C connector, your implementation will need to comply with the guidelines defined for the "Accessory Modes" on the USB type-C specification. I recommend you to check appendixes A (Audio Adapter Accessory…
Other Parts Discussed in Thread: TS3A44159 , TSU5611 , TSU6721 , TS3A5018 I'm looking for an analog switch with built in zero crossing detection. Basically something that will delay switching until the input is 0v or after a fixed time delay if 0v is…