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Re: Common drain buffer
Hmm, I think I didn't quite understand how this buffer works.
When I read about it in electronics books, I see 2 (there are more, but usually I see these two) basic topologies.
1) MOSFET + resistance : Here we start with a bias current Ids. Now if that bias current Ids...
Hi,
I want to use a common drain MOSFET acting as a buffer.
This circuit has a very high input impedance and a low output impedance.
Attached you can see the circuit, and is working like it should be working.
But how can I make the output impedance to be 50Ohm?
Thanks
Can anyone answer these questions?
- R en C for the drain current sources are chosen to filter out the 5MHz swing
=> ?
- Cs : There is a max limit on the capacitor set by the relaxation mode and min limit set by the necessity to have negative resistance at 35MHz.
=> how can I simulate the...
Hi,
I'm trying to design a cross-coupled oscillator with a crystal attached to it with resonance freq of 5MHz.
I used the papers attached and the following threads:
But I still have a few questions:
When I simulate the attached circuit I get a stable output oscillation (f = 5.05MHz) after...
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