2016-03-14 08:08 AM
Hi,
It's about CS43L22 (Low Power, Stereo DAC w/Headphone & Speaker Amps) available on STM32F4 disco-board.So according to this schematic:2016-03-14 08:21 AM
I would know more about PA4(Audio DAC OUT) PC3(PDM OUT) and PC4
It seems that PA4 comes from the µcontroller's DAC (additionnal functions ADC12_IN4/DAC_OUT1) ?PC3 comes from microphone MP45DT02 it s clear!PC4 is an analogic enter what I could use freely? Each enter go with low/high filter (if someone could explain me more precisely thanks)And if I want use these analogic enter I must play with my µcontroler to order the CS43L22 ? Thanks