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HMC7044 loop filter for PLL2 with external VCO

Question asked by johnpritchard on Mar 17, 2016
Latest reply on Mar 31, 2016 by johnpritchard

Dear Sir

Please can you suggest a configuration (Icp, etc., register settings,..) and loop filter for an external VCO for the HMC7044 PLL2 with the following characteristics:

Frequency     2GHz

Tuning sensitivity 35kHz/volt

Tuning voltage 0.5 to 12Volts

Phase noise:

-107 @ 1kHz

-137 @ 10kHz

-159 @ 100kHz

-168 @ 1MHz

The PLL1 will be operating at 100MHz.

 

Thanks

 

John

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