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Question asked by FreddyS on Mar 11, 2014
Latest reply on Mar 11, 2014 by EricC

I have a technical question on ADG904 RF switch.

We wish to use it as analog switch for single frequency clipped sine-wave TCXO selection (from 10MHz to 100MHz).

The problem is that we can’t load the TCXO for more than 10pF + 10K ohm and therefore we can’t load the switch output by 50 Ohm, only 10K (resistive)/10pF or more (actually it goes to another chip with high impedance input).

The question is – can we use this switch with high impedance output instead the regular usage as RF switch with 50 Ohm output?

Note: No use of wide band signal, only single frequency clock.

Data sheet link: