Regarding the high frequency transmission circuit problem, please help!

树荫照水愛晴柔

Regarding the high frequency transmission circuit problem, please help! [Copy link]

The voltages at both ends of capacitor C114 are different, the left end is 3.3V and the right end is 3.0V. Can this circuit be turned on? The signal transmitted is a high-frequency signal.

maychang

"The voltages at both ends of capacitor C114 are different, 3.3V on the left and 3.0V on the right." I think 3.3V and 3.0V are DC voltages to ground. Since "high-frequency signals are transmitted", it doesn't matter much. As long as the signal frequency is high enough, the capacitive reactance of C113 and C114 will be small enough.

树荫照水愛晴柔

maychang posted on 2018-5-25 10:45 "The voltages at both ends of capacitor C114 are different, the left end is 3.3V, and the right end is 3.0V." I think 3.3V and 3.0V are DC voltages to the ground. Since "the transmission is high...

I would like to ask the experts, do you know anything about DP transmission, and the interface switch chip PI3VDP12412?

maychang

树阴照水爱晴柔发表于2018-5-25 10:57 I would like to ask the experts, do you know anything about DP transmission, and the PI3VDP12412 interface switch chip?

“Do you know anything about DP transmission?” I don’t know, I don’t even know what DP is. As for the “PI3VDP12412 interface switch chip”, I can only look at the datasheet.