I2S MCK not more than 10 MHz.

RE: I2S MCK not more than 10 MHz.

haakonsh — Wed, 12 Aug 2020 11:27:53 GMT

The table is an example,

[quote user="haakonsh"]The Master clock (MCK) chapter explains how you set an arbitrary MCK frequency. [/quote]

See Figure 3. MCK clock frequency equation.

RE: I2S MCK not more than 10 MHz.

Rajat Kumar — Wed, 12 Aug 2020 11:09:52 GMT

We are presently using nrf5340 pdk board for evaluation, can you tell how can we achieve I2S MCK more than 10 MHz, as we are not able to find it in the table for available I2S MCKs for 48000 KHz LRCK, Max we can see there for this case is 3.07 MHz.

RE: I2S MCK not more than 10 MHz.

haakonsh — Wed, 12 Aug 2020 10:00:33 GMT

The Product Specification for the nRF5340 is not yet complete, therefore I don't know what the maximum MCK frequency can be, but I think there's a good chance of it supporting an MCK frequency of 12288000Hz as that is the Audio PLL clock source frequency.

The Master clock (MCK) chapter explains how you set an arbitrary MCK frequency.