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HMC7044 - CLKIN

Category: Hardware
Product Number: HMC7044LP10BE

Dear all,

I would like your kindly support to help me about the input clock HW configuration of HMC7044. If all references appear valid, PLL1 uses a reference priority table to select the best candidate.

a) Could I use only one external input reference on CLKIN0 (PIN39 and Pin 40)?

b) Should to add a phisical pull-down to the pins of CLKIN3, CLKIN2 and CLKIN1?

Thanks in advanced,

AM