關於在VDD端串RES& CAP的問題
时间:10-02
整理:3721RD
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Dear all:
我想請問 , 為何要在PA 的VDD端 串上RES & CAP?
知道的能告訴我嗎 ?
THANKS
我想請問 , 為何要在PA 的VDD端 串上RES & CAP?
知道的能告訴我嗎 ?
THANKS
To avoid oscillating. Vdd must be AC ground in RFIC, or MMIC, otherwise it may start oscillating before you know. This can be achieved by putting de-coupling caps underneath the power tracks.