4 ADC input's for  ADAU1701 and no TDM output

Discussion created by CelsoSC on Jun 2, 2010
Latest reply on Jun 15, 2010 by CelsoSC
Branched from an earlier discussion

Hi there,


I have build my project now. I'm using an AD1974 4Ch-ADC in stand-alone mode as master and an ADAU1701 to get the 4 channels of Audio to the DSP. And it's working fine.

Now the problem I have is to output a TDM stream in master Mode. I set up MP6 - Out TDM 8 Ch, MP10 - Lrclk_out and MP11 - Bclk-out. On the output of MP11 I get a 12.288Mhz Clock signal and a Lrclk signal on MP10, but no datastream on MP6.

If I set up Bclk Frequency and the outputs MP6,MP7,MP8 and MP9 to get I2S I have audiodata.

What did I miss?


Kind regards, Celso


P.S.: Kind like to thank Analog Devices for the provided samples and the great support