SGTL5000 - SPI Mode Serial ClockMax Frequency

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SGTL5000 - SPI Mode Serial ClockMax Frequency

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mitchsw
Contributor I

Hi, the datasheet of the SGTL5000 does not contain a max SPI Serial Clock Frequency. It just says TBD:

Screenshot 2026-01-04 at 12.53.14.png

Can someone please advise what the max frequency is, even a ballpark? Should I expect an 8MHz clock to work?

 

Thank you

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mitchsw
Contributor I

Hi, thanks for looking into this. SYS_MCLK will be provided by my host MCU which has an Audio PLL. It is therefore programmable and I hadn't chosen the frequency yet.

Just confirming, my question relates to CTRL_CLK in SPI mode.

Thank you!

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guoweisun
NXP TechSupport
NXP TechSupport

We test it in the EVk which we use the 12.288M  OSC and can get the maximum 2MHZ frequency work well.

This above information is for your reference.

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guoweisun
NXP TechSupport
NXP TechSupport

HI 

How to connect with  SYS_MCLK pin in your side?

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guoweisun
NXP TechSupport
NXP TechSupport

I need confirm again please wait for response!

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