Does the HMC540S have an internal charge pump ot the like or is it completely static? Also device matching question.

Question

Does the HMC540S have an internal charge pump ot the like or is it completely static (as long as the bit values aren't changed)? 
 I'm dealing with very small signals and any internal clock for a charge pump or the like might feed into my signal and disturb it. 
 
 Also, would the bit errors of two deviced match somehow, so two parallel signal paths with their attenuators set to the same bit values would experience a very similar attenuation? 
 It's assumed that they would be populated directly after one another, so the devices would be from adjacent pockets on the reel. 
 
 Thanks!

yus · Accepted Answer

Hello,

HMC540S doesn't have internal charge pump. So, clock leakage should not be a problem.

The best thing you can do in terms of part-to-part variation is to use chips from the same lot and you should be doing that by using adjacent parts from a reel.

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Does the HMC540S have an internal charge pump ot the like or is it completely static? Also device matching question.

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