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To use externl control Slew Volume on ADAU1701 has POP noise

Question asked by JasonCS on May 27, 2013
Latest reply on May 30, 2013 by KJBob

Hi there,

 

I have done the PCB of ADAU1701 and MCU codeing. However, there is unexpeced pop noise out when MCU send command thru I2C to DSP. The pop noise is not fix period. The I2C speed i up to 400khz and portion of SigmaStudio design as belw

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