[sdiy] PLL module

[Scott Gravenhorst]

I designed this PLL circuit for audio to track a FatMan VCO and produce 1F, 1.5F, 2F, 3F,
4F, 6F and 12F outputs.  Lag time is adjustable and can be made quite insignificant at
the low end.

http://home1.gte.net/res0658s/fatman/4046pll.html

>----- Original Message ----- 
>From: "Sean Ellis" <tensiontype at hotmail.com>
>To: "Sean Ellis" <tensiontype at hotmail.com>; "Julian" 
><julian at port23.co.uk>; "Harry Bissell" <harrybissell at wowway.com>; 
>"Jason Proctor" <jason at redfish.net> Cc: 
><synth-diy at dropmix.xs4all.nl> Sent: Tuesday, April 06, 2010 11:15 
>PM Subject: Re: [sdiy] trolls and unicorns 
>
>
>D'oh! PLL is what I meant, it's late....
>
>----- Original Message ----- 
>From: "Sean Ellis" <tensiontype at hotmail.com>
>To: "Julian" <julian at port23.co.uk>; "Harry Bissell"
><harrybissell at wowway.com>; "Jason Proctor" <jason at redfish.net>
>Cc: <synth-diy at dropmix.xs4all.nl>
>Sent: Tuesday, April 06, 2010 11:07 PM
>Subject: Re: [sdiy] trolls and unicorns
>
>> Back to business, why are there so few PPL modules out there? A long time
>> ago I made a crazy module with a PPL at its heart, it was based on a
>> harmony circuit that was supposed to perform a backup when a person
>> whistled a tune. With some careful additions it turned into an amazing
>> 'fattener' module for synths, the tracking was awful and sounded like your
>> drunk friend trying to see what keys you were pressing....I always
>> wondered why people dont use PPLs more.

-- ScottG
________________________________________________________________________
-- Scott Gravenhorst
-- FPGA MIDI Synthesizer Information: home1.gte.net/res0658s/FPGA_synth/
-- FatMan: home1.gte.net/res0658s/fatman/
-- NonFatMan: home1.gte.net/res0658s/electronics/
-- When the going gets tough, the tough use the command line.