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ADAU1452 Serial Port 0 outputs mono

SigmaDSP & SigmaStudio kpapr1 Jun 5, 2019 00:00 2 replies Original on forum ↗
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kpapr1 Question
Jun 5, 2019 00:00

Hi,

I have made a custom board with ADAU1452 that inputs data from a USB DAC (Amanero) on serial port 0 and outputs data on serial port 0. Input data is I2S format and output data is Right Justified 24-bit. Input port is set as slave and output port is set as master. The output data drive 2xDSD1794A DAC ICs in mono mode (DSD1794A handles both PCM and DSD). DSD doesn't go through the ADAU1452 of course and works as expected. The problem is when in PCM mode, where data go through the DSP. When I probe LRCLK0_OUT and DATA0_OUT signals I see that data exist for one channel only (I can't remember now if it's L or R channel). However, analog output from the DSD1794A is stereo, BUT L and R channels are mixed together!!! In my sigmastudio project, it's only output 1 that outputs data, if I delete output 0 nothing changes. I can connect input 0 or input 1 to output 1 and I hear the same thing. I'm not sure why this is so any help would be greatly appreciated!

Thank you!

Audio Signal Processors

adau1452

SigmaDSP Audio Processors

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nabiullin Reply
Jul 25, 2019 00:00

have same problem with serial out 3 on adau1452, any solution?

DaveThib Reply
Aug 2, 2019 00:00

Can you zip up and attach your project?

Dave T