SYS_MCLK of SGTL5000

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SYS_MCLK of SGTL5000

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GSXR100038
Contributor II

I would like to know I have to configure the PLL internal to the CODEC or not ? After the DS SYS_MCLK.png

what does that mean ? If my microprocessor can generate a synchronous clock in this case I don't need to configure the PLL of the CODEC, right ? Otherwise I have to configure the registers according to this flowchart ?

PLL.png

Thank you for your answer.

Regards

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JorgeCas
NXP TechSupport
NXP TechSupport

Hello,

 

If you are using a synchronous SYS_MCLK input from a host processor, you don't need to configure PLL registers since it is not used.

 

You can check an example on section "PLL Configuration" of datasheet.

 

Best regards.

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