About I2S settings for nRF5340

[okasa]

Hi There,

We are currently developing a prototype using the mRF5340.
(MDBT53-1M )
The key is to operate I2S at 192kHz.

Please let me confirm the following:

Is LRCK's maximum limit 96kHz?
It is described in the I2S timing specification.
docs.nordicsemi.com/.../i2s.html

Best regards
- satoshi

[Samruddhi Jadhav]

Hi,

You are right that LRCK's maximum limit is 96 kHz according to the I2C documentation. However, it is not mentioned in our documentation whether 192 kHz is supported so this would be outside the documented limits.

Best Regards,

Samruddhi

[okasa]

Hi There,

Due to the SCLK limit of 8MHz, the LRCK limit is 125kHz.
In that case, LRCK may have an upper limit of 96kHz.

I'd like to test this out with a prototype.
Thanks for the advice!!

Best regards
- satoshi