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DS90UB953-Q1: I2C Clock clarification

Part Number: DS90UB953-Q1


Hi Team,

Can you clarify what is the reference clock for I2C on the 953? In section 7.5.3 the datasheet mentions a internal reference clock but also mentions a clock value of 26.25Mhz:

Earlier in the parametric table the internal reference clock is mentioned as 24.2Mhz to 25.5Mhz

Assuming I'm running in synchronous mode, Is the I2C clock actually the back channel clock derived from the oscillator on the deseralizer (954 in my usecase)?

If so, how would table 7-11 recommended values change if my reference oscillator on the deseralizer is 24Mhz: