kendryte/kendryte-freertos-sdk

- [ ] FEATURE REQUEST - TDM drivers for Digital Audio

Opened this issue · 0 comments

TDM Audio Signals

Justification

Many multichannel audio codecs, ADCs, DACs, Digital Amplifers support multichannel TDM signals over a single i2s connection (BCK, WS, DAT). TDM also allows devices to daisy-chain. However, more channels results in higher sclk and ws frequency.

Spec
https://d3uzseaevmutz1.cloudfront.net/pubs/appNote/AN301REV1.pdf

Example high end multi-channel DAC
https://www.akm.com/akm/en/file/datasheet/AK4458VN.pdf