Can ADAU1467 be used to build microphone array?

Hello ,

Sorry for the delayed response.

Please note that up to four PDM microphones can be connected as audio inputs. Each pair of microphones can share a single data line; therefore, using four PDM microphones requires two GPIO pins. Any multipurpose pin can be used as a microphone data input, with up to two microphones connected to each pin. This configuration is set up using the corresponding MPx_MODE and DMIC_CTRLx registers.

Please refer the DIGITAL PDM MICROPHONE INTERFACE (PageNo: 77 / 207) in the datasheet of ADAU146x.
www.analog.com/.../ADAU1463-1467.pdf

Regards,
Lalitha.S

This is a duplicate question. The question was answered in more detail on this post:

(+) I want to build a mic array. Can I use ADAU1467 for that? - Q&A - SigmaDSP Processors and SigmaStudio Development Tool - EngineerZone (analog.com)

Dave T