Don't know on the web but this is what I have that has the 4046 and some
circuits for it.
http://www.amazon.com/exec/obidos/ASIN/0750699434/104-1049940-9011129
Rick

"Edson Brusque (listas)" wrote:

> Hello,
>
>     I'm looking for informations about using PLLs (Phase Locked Loops) at
> low to mid frequencies (from 20Hz to 50kHz).
>
>     I've googled the web, searched National's ANs and just can't find how to
> use a 4046 to detect a frequency like Peter L. Peres sugested in a reply to
> Dale Botkin about guitar tuners.
>
>     Also, other examples would be very usefull, as how to filter a 30kHz
> signal from a complex waveform etc.
>
>     There's some "PLL Cookbook" on the web? Any usefull application notes?
>
>     Thank you,
>
>     Brusque
>
> -----------------------------------------------------------------
> Edson Brusque                 C.I.Tronics Lighting Designers Ltda
> Research and Development               Blumenau  -  SC  -  Brazil
> Say NO to HTML mail                          www.citronics.com.br
> -----------------------------------------------------------------
>
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