PCM1840: Schematic review

Hi,

I am seeing AC-coupling capacitors on INxM pins, however I am unable to see any on the INxP pins, can you clarify on the same?

Additionally, the connections on the hardware pins (MD0, FMT0 etc) are not visible on the above screenshot, can you share a screenshot showing the same?

Thanks and Regards,

Lakshmi Narasimhan

Hi ，

AC coupling capacitors for INxP pins are located at the other input side, as shown in the following figure.

Schematic diagram

Hi,

1) Can you clarify if the device is expected to operate in Master or Slave Mode? There is an MCLK signal connected to MD1 pin, however the MSz seems to be pulled down to GND

2) Can you clarify the "IIS_SCLK" and "IIS_SDA" signals which are connected to the MD0 and MSz pins?

3) Additionally, the MICBIAS doesn't seem to have a decoupling capacitor, please refer to the datasheet for the decap recommendation.

Thanks and Regards,

Lakshmi Narasimhan