My customer wants to use DS90UB935-Q1's CLKOUT as a reference clock to the image sensor. And the reference clock they need is 24MHz. Our 935's default value is 25MHz. We have an example as below, but I am a little confused for the computation result. In below example, CLKOUT=37.125MHz, selecting values of M=9, N=0xF2(362), and HS_CLK_DIV=4 results in an output frequency of 37.190 MHz. CLKOUT=FC*M/(HS_CLK_DIV*N)=FC*9/(4*362)=0.00622*FC. FC should be 4Gbps in sync mode, so CLKOUT=0.00622*FC=0.00622*4Gbps=0.00622*2GHz=12.44MHz. The result is 12.44MHz instead of 37.19MHz. Could you please tell me which step is wrong? I need to help customer to compute 24MHz CLKOUT.
Thanks & Best Regards,