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HMC470控制电平改变,但是芯片的衰减倍数还是一点都不变

HMC470控制电平改变,但是芯片的衰减倍数还是一点都不变

芯片是根据芯片的几个引脚的输入改变衰减倍数的

HMC470芯片是LCC封装的,就是那种四周有16个引脚的,引脚在芯片的正下方,芯片大小3.10mm*3.10mm

我们焊了好几次,都是这个情况(我们先放好芯片位置,然后压实,用吹风枪吹芯片旁边的引脚)

hmc470lp3.pdf