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STM32H7 SPDIFRX module kernal clock

MikeDB
Lead

I'm using the latest CubeIDE to configure the H750 MCU. From the datasheet it says 96kHz sampling (at 32 bits in my case) needs a 67.6 MHz clock from the clock tree which I provide. However on the Pinout & Configuration page for the SPDIFRX module it says

Audio Frequency 96kHz

Real Audio Frequency (in italics) 768.0kHz

Can somebody explain what it means by Real Audio Frequency, as of course SPDIF cannot support such a rate.

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