HMC3716 loop filter recommendation

Dear Sir

Please could you recommend an op amp and loop filter for an HMC3716 with a VCO operating near the maximum frequency of 1.3GHz, tuned for best integrated phase noise? Phase noise of the VCO is approximately:

-10dBc/Hz@100Hz

-45dBc/Hz@1kHz

-70dBc/Hz@10kHz

-90dBc/Hz@100kHz

-110dBc/Hz@1MHz

-130dBc/Hz@10MHz

-150dBc/Hz@100MHz

The reference is very good so I think it is possible to ignore the phase noise contribution from the reference. The integration frequency range of interest is 40Hz to 40MHz.

Have you ever made a PLL with the HMC3716 operating at 1.3GHz?

Many thanks

John P

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