Thank you for your answer, but let me explain you my situation:
I have 2 myriad RF 1 - and DEO nano and a digital interface board
In the interface board I have a TXCO who generate me 38,88 MHz, I know its not 30,72 but in the SPI software all my registers are passing and I put on the reference clock 38,88 MHz.
in one board I program the transmitter, i apply in analog input a 1MHz CW, in the other board I program the receiver, but the transmission is not OK at the reception my signal is super noisy
In addition, when I generate the same clock PLLCLK at 30,72 from an external generator for my transmitter and my receiver board, this transmission is good, but if I take 2 external generator, one on 30,72 to my transmitter board and the other also at 30,72 to my receiver board, the transmission is again not good, and super noisy
I can not understand, in my application the PLLCLK must not be the same for my 2 board,
I don’t understand another thing, when I want to make the LMS6002D Calibration I don’t have the same result