[time-nuts] PLL chip? (was 10 MHz Oscillator comparison part II)
lists at rtty.us
Wed Jan 12 18:05:16 UTC 2011
What are you trying to do? There are many people out there making PLL chips
with various features. National and Analog are the two most commonly used
for most RF applications.
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Chris Albertson
Sent: Tuesday, January 11, 2011 7:11 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] PLL chip? (was 10 MHz Oscillator comparison part II)
I'm in need of a PLL too. Is there a common part that is better than
the 4046? I assume there must be. Not for high precision work.
> Wrote:< Using the CD4046 (or HC4046) as the phase locked oscillator would
probably be counterproductive as its phase noise is very high (its in effect
an RC oscillator with an effective Q of around1/4)
> A. I dont know. Maybe there is a better IC choice for the PLL. I guess
building one would prove its feasibility.
Redondo Beach, California
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