SGTL5000 - SPI Mode Serial ClockMax Frequency

[mitchsw]

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

[mitchsw]

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!

[guoweisun]

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.

[guoweisun]

HI 

How to connect with  SYS_MCLK pin in your side?

[guoweisun]

I need confirm again please wait for response!