Re: phase comparator

bill.sloman_at_ieee.org
Date: 01/04/05 

Date: 4 Jan 2005 15:47:13 -0800

Tim Wescott wrote:
> Tim Wescott wrote:
>
>
> > Discriminator, as used in FM radio. However, a three-state
> > phase/frequency detector with an appropriate loop filter will often
do
> > well enough without a bunch of fussy resonant circuits.
> >
> >>
> I should add that the 74HC4046 has three different types of phase
> detectors. Fairchild Semiconductor has a nice description of the
phase
> comparator action in their data***:
> http://www.fairchildsemi.com/ds/MM/MM74HC4046.pdf.

The Philips 74HCT9046 has a rather better phase-frequency detector -
see the data *** for details

http://www.semiconductors.philips.com/acrobat_download/datasheets/74HCT9046A_5.pdf
-----------
Bill Sloman, Nijmegen

Quantcast