A good PCB layout for the CDCVF2505DR involves placing the device close to the clock source, using a solid ground plane, and minimizing the length of the clock signal traces. It's also recommended to use a low-ESR capacitor for the VCC filter capacitor.
To ensure proper power supply, connect the VCC pin to a 2.5V power supply, and decouple it with a 0.1uF capacitor to ground. Also, make sure the power supply is clean and free of noise.
The CDCVF2505DR supports clock frequencies up to 250 MHz. However, the maximum frequency may vary depending on the specific application and PCB layout.
The CDCVF2505DR can be configured for a specific clock output frequency by selecting the appropriate values for the external resistors and capacitors. Refer to the datasheet for the calculation formulas and examples.
The NC pins on the CDCVF2505DR are not connected internally and should be left unconnected on the PCB. They are provided to maintain package symmetry and thermal performance.
CDCVF2505DR datasheet
by Texas Instruments
