AnsweredAssumed Answered


Question asked by yckim on Feb 17, 2016
Latest reply on Feb 24, 2016 by yckim

Hello. I'm a system designer.


I'd like to use HMC-ALH382, HMC-ALH476, HMC598, HMC442 for making RF system.


Above chips need two voltage supplies, VDD and  VGG.


When I read "MMIC AMPLIFIER BIASING PROCEDURE", VGG shoud be on befor VDD is on. Is it right?


If I ignore bias sequence like VDD and VGG are on at the same time , Will something occur? chip would be damaged?


These chips GND are connected PCB ground.


Thank you.