ADC09QJ800: ADC09QJ800-Q1

Hi Giora,

Looks like you are looking at JMODE3. In JMODE 3 with 800MHz clock the serdes rate = DEV CLK X R factor from table 8-16 Operating modes. R = 12.5

Serdes Rate = 800MHz x 12.5 = 10Gbps.

Sysref freq = Serdes Rate / (K x F x 10 x n) Where n is positive integer 1,2,3........

From Table above lets pick K = 32, F = 5, n = 1

Sysref Freq = 10Gbps/(32 x 5 x 10 x 1) =>  6.25MHz 

Regards,

Neeraj

Gill,

thank you.

Giora