"Robert Baer" a écrit dans le message news:
...
Paul Burridge wrote:

On Sat, 10 Apr 2004 08:22:21 GMT, Robert Baer
wrote:

Not a varactor (diode), but a switching diode; fast. Snap-off is lotz
better.
And they are a *LOT* smaller!

Thanks, Robert (and all else)
I'd prefer a diode solution as there'd be no power supply requirements
for each device. The tiny size is an added bonus, of course. But
what's the drawback with superfast switching diodes as against active
inverters? I'm sure there must be (at least) one...

An active inverter is S L O W by comparison; a good, fast diode can
have turnoff times in the tens of picoseconds region.


Don't let Paul dream too much about picoseconds.
In order to achieve results that good, one have to pay very careful
attention to "wiring". There's still a lot of room for Paul to improve his
PCB design skills ;-)

Thanks,
Fred.