The following settings are required to make I2S compatible with the AK5720VT.
MCLK=12.288MHz
BICK=1.536MHz
LRCK=32kHz
Bit length=24bit
CONFIG.RATIO >= 2 * CONFIG.SWIDTH
Integer = (CONFIG.RATIO / (2 * CONFIG.SWIDTH))
Based on the above relationship, LRCK must be set to 32kHz to support a bit length of 24bit.
Looking at the nRF5340 website, it seems that LRCK only supports 16kHz, 24kHz, and 48kHz.
Is there a way to set LRCK to 32kHz?