On Sun, 02 Feb 2014 14:26:50 -0700, Jim Thompson
wrote:
On Sun, 02 Feb 2014 14:14:27 -0700, Jim Thompson
wrote:
On Sun, 02 Feb 2014 12:53:25 -0800, John Larkin
wrote:
[snip PAL trash]
Post a proper LT Spice schematic and I'll run it.
So you don't know how to run a .CIR file ?:-}
In the meantime, is it actually locked?
Yep.
...Jim Thompson
In PSpice I skewed the starting of the "pump" to be purposefully off
sync, then you can watch it walk in. The LM339 version is much easier
to see and understand, because the alternate pulses change amplitude
so rapidly.
...Jim Thompson
Works even better (faster "lock") if you toss the diode, reverse input
to LM339 and connect resistor from its output to the top of tank.
(Makes you wonder what it'd do if you switched a cap in and out.)
My boss, when I first went to Motorola in 1962, was Jan Narud
(co-father, with Walt Seelbach, of ECL). His PhD thesis was on
injection-locked loops... about 1/2" worth ;-)
I'll try and find it.
...Jim Thompson
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