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ADAU1442 TDM4 no data output

Question asked by traxman on Nov 9, 2015
Latest reply on Nov 10, 2015 by traxman

Hello

I try to use ADAU1442 with PCM4104 DAC with TDM4 (I2S) interface, but I have problem with serial output interface - no TDM Data on SDOUT8 pin.

 

ADAU config:

Xtal=24,576MHz

PLL0,2=GND

PLL1=VCC (3.3V)

CLKOUT=24.576MHz (for PCM MCLK)

CLKMODE0=GND

CLKMODE1=VCC (3.3V)

 

PCM4104 (Quad rate, TDM with 1 BCLK delay)

FS0=GND

FS1=VCC

FMT0,1=VCC

FMT2=GND

 

PCM is connected to ADAU Serial Output 8: LRCK8 (P78), BCLK8 (P74), SDOOUT8(P61)

 

How to configure ADAU for proper operation, my short project don't work.

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