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CDCM61004: Input capacitance requirement is look like higher value

Part Number: CDCM61004
Other Parts Discussed in Thread: CDCM6208, CDCE6214-Q1, LMK03328

Dear Sir/Madam,

We are planning to use the cdcm61004part in our design and design input details mentioned below.

Input type :CLKin, LVCMOS3.3V

Input freq:25MHz

Selected input clock source load capacitance is 5pF

Output : 4 channel LVCMOS 3.3V

Output freq: 100MHz

1. Input capacitance requierment of cdcm61004 part typ is 10pF and capacitance value look like higher, whether i can use the clock source with 5pf load capacitance or i have to select the 10pf clock source device?

2. In our design has 3.3V LVCMOS clock source. To implement the 2.5V AC coupling , whether the resistor voltage divider is enough?. If any reference circuit is available. kindly share.

3.what is the longevity of this product?

4. Any other beter clock generator is available compared to this part ( part should be non-programmable)?

Regards

James A