Hello.
I have a great problem with PCM4220 audio codec.
My configuration:
1) PCM4220
- Master mode
- Double Speed mode
- Classic filter response
- SUB0 = 0 and SUB1 = 0: Sub-frame 0
- OWL0 = 0 and OWL1 = 0: 24-bits
- FMT0 = 1 and FMT1 = 0: I2S
Audio serial port bit clock - 6,14407 MHz
Audio serial port left/right word clock - 96 KHz
Master clock - 12,2881 MHz
2) DSP (TMS320 C6745)
Codec connected through McASP.
Master clock - 24,576 MHz
Voltages on PCM4220:
VINR- (1,7354V)
VINR+ (2,1754V)
VINL- (1,7354V)
VINL+ (2,1754V)
My Problem: I have incorrect data from audio codec.
CH1 - DATA Pin
CH2 - LRCK Pin
Why data from left and right channel are very different ?
This is confirmed by data from buffer.
This problem hurts me a one week. I've tried the different chip (PCM4220), check my schematic with datasheet, but I don't have any result. Where is my mistake ?
Thanks.