[sdiy] crystal bandpass filter / amplifier with CD4049UBC

[Paul Perry]

At 12:03 AM 14/05/03 +0200, Magnus Danielson  wrote:

>But, but, but... this sounds like the arch-definition of applications where you
>really, really, _REALLY_ should turn to analog PLLs. 
..absolutely true!!


>The phasedetector of choice would be a 4-quadrant
>multiplier and a 1495 should work really well (this is what it was designed to
>do and not the LF stuff),
..I'm not a RF kind of guy, but surely a specifically designed PLL chip would
be better? A 4046 or one of the Philips ones?
And I think the 1496 was the one intended as a mixer/detector, the 1495 
was specced for DC. (I could be wrong.)

paul perry Melbourne Australia