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vca821发热

Other Parts Discussed in Thread: VCA821

请问下大家,我这样使用VCA821的使用,芯片会发热,请问下你怎么回事?因为我这里没有20R和402R的电阻,不能按照芯片手册的接法达到最大增益为20DB的模式,请问下大家有没有什么解决的办法,多谢了