🚀 go-pugleaf

With the 567, you can optimize it for bandwidth (how far your signal can
deviate frequency-wise and still be locked) or speed of capture (how quick
it locks in) and a couple other things, but some of them are exclusive of
each other - you can't have it all.  Getting the 567 to lock and release
at very high speed is tough, maybe even impossible.   I'm sorry I don't
have the data book handy, but when I did a project with these a while
back I had to do a LOT of experimenting with capacitor values to find the
optimal balance of bandwidth and speed, and stability.  I really needed
very tight bandwidth; as a consequence, my 567 circuit took about a 
half-second to turn on and almost a full second to "let go" when the
signal went away.  

--
paul marxhausen .... ....... ............. ............ ............ .......... 
 .. . .  . . . university of nebraska - lincoln .  . . .. . .  .. . . . . . . .
 .     .    .  .   .     .   .  .    .   .  .   .    .   .  grace .   .    .  . 
   .         .       .      .        .        .      .        .   happens .