Other Parts Discussed in Thread: PCM1865, PCM1863, TIDA-01454, PCM1864
Team,
our customer is considering designing in PCM1865-Q1 and using it in M/S mode.
We have a few questions:
- Datasheet suggests there is analog gain (-12dB- +32dB) + digital gain (0.5 dB – 11.5 dB). Do these two gains add up, since maximum gain is said in datasheet to be 32dB?
- Datasheet also suggests there is no need to include antialiasing filters on the input of ADC, since this is handled internally?
- How to set-up and use M/S mode for 6 microphones. How much I2S (SAI) buses are needed for this setup?
I can share block diagram of what we want to accomplish if it would be helpful.
Thanks for your support.