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1452 ASRC noise

Question asked by zhou on Dec 17, 2014
Latest reply on Nov 19, 2015 by Heidi

Hi,
   I use 1452 on my target broad.The testing project of ASRC is attached.When I need the input from ADC ,I set the gain of ASRC to be  -100dB and the gain of ADC to be 0dB. When I need the input from ASRC ,I set the gain of ADC to be -100dB and the gain of ASRC to be 0dB. It is OK if I change the settings(change the gain of ADC and SPDIF) after I connect the optical output of DVD to the SPDIF pin. But if I change the settings(change the gain of ADC and SPDIF) before I connect the optical output of DVD to the SPDIF pin, when I change the settings(change the gain of ADC and SPDIF) it generates a noise which sounds like "POP". Do I miss any setting of ASRC or SPDIF? Or it is the bug of 1452?

 

 

Best Regards,
Alex

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