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ADG904 (3)

Question asked by FreddyS on Mar 12, 2014
Latest reply on Mar 12, 2014 by EricC

Hi Eric,

The ADG704 has 54pF ON capacitance and it might degrade signal of TCXO (limit of 10pF).

Sorry for repeating my question, I just don’t understand why the signal will be degraded – is the shunt transistors works when the switch is on?

What is the impedance of the shunt transistors? Is it 50 Ohm?

I don’t see it reasonable to have 50 Ohm on the input signal, because if it is activated when switch is on with 50 Ohm to ground then you lose 3dB ?