Part Number: LMX2594
Tool/software:
Hi TI,
I have designed a custom PCB using the LMX2594 that operates with both an EXT Clock (Sine wave) and an INT Clock (TCXO: CMOS).
(Attached is the circuit diagram.)
The EXT Clock is input into the PLL through a buffer, as shown in the diagram.
When checking the output of the PLL, it locks without any fluctuation, as seen in the video (EXT_CLOCK_PLL).
However, when the INT Clock is input into the PLL, the PLL output does not lock and fluctuates, as seen in the video (INT_CLOCK_PLL).
(The lock detector indicates a high signal.)
Can you provide assistance?
