Re: phase comparator

From: Tim Wescott (tim_at_wescottnospamdesign.com)
Date: 01/04/05 

Date: Tue, 04 Jan 2005 13:52:29 -0800

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. 

-- 
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com