Maximum number of Microphones which can be interfaced with WM8994

Semiconductor Integrated Circuits (ICs)
, ,
1

Hello ,

I am working on an Audio solution and wanted to know if 4 Mics(I2S or PCM) can be interfaced with WM8994_Rev4.6.pdf ? I see it has PCM1,2 and 3 block but on the left it says 4 Digital MICS?

Can you please clarify with the connection interfaces?

Also if I want to stream all the MICs data at 48 or 96Khz to an application processor which interface should I chose?

Regards,

S

2

Page 57, documents how 2 digital MICS are multiplexed into each DMICDATx pin..

image
image691×767 68.2 KB

Looking at Page 59, i don’t see you getting 96Khz:

image
image525×610 23.8 KB

Regards,

3

Thanks for the facts @RobertCNelson . I will check this.

Br,

S