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About ADV7619 audio output

Question asked by WilliamLian Employee on Sep 20, 2016
Latest reply on Sep 23, 2016 by JeyasudhaMuthuPerumal

a customer  is debugging ADV7619, there’s an issue about audio output.

 

  1. Input signal: PCM, processed with SPDIF+HDMI
  2. Output by AP2 port.
  3. By the AP2 port, can get the audio signal, but it heard like noise, was not same as the audio source.
  4. Customer setup 
  5. Customer just modify below register, other registers with default value.

I2C slave address

 register address

configure data

0x4c

0xfd

0x44

0x4c

0xfb

0x68

0x4c

0x01

0x06

0x4c

0x00

0x02

0x4c

0x03

0x80

0x4c

0x15

0xb8

0x4c

0x19

0x80

0x4c

0x0c

0x42

0x34

0x01

0x01

0x4c

0x15

0xa8

 

need ADI help to confirm for normal audio output, whether the configure data of above registers are OK, what’s the suggestion for customer to get ‘normal’ audio output by AP1? Which register setup will effect audio output?

BTW,measured the output clock, the LRCLK is 48kHz, the SCLK is 3.072MHz, the MCLK is 12.28MHz

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