topic Re: SGTL5000 - SPI Mode Serial ClockMax Frequency in Other NXP Products

SGTL5000 - SPI Mode Serial ClockMax Frequency

mitchsw — Sun, 04 Jan 2026 17:53:54 GMT

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

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

Thank you

Re: SGTL5000 - SPI Mode Serial ClockMax Frequency

guoweisun — Mon, 05 Jan 2026 06:58:38 GMT

I need confirm again please wait for response!

Re: SGTL5000 - SPI Mode Serial ClockMax Frequency

guoweisun — Mon, 05 Jan 2026 08:08:28 GMT

How to connect with SYS_MCLK pin in your side?

Re: SGTL5000 - SPI Mode Serial ClockMax Frequency

mitchsw — Mon, 05 Jan 2026 12:12:44 GMT

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!

Re: SGTL5000 - SPI Mode Serial ClockMax Frequency

guoweisun — Wed, 07 Jan 2026 07:17:21 GMT

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.