[sdiy] simple PLL frequency-to-voltage converter?

Scott Gravenhorst music.maker at gte.net
Thu Nov 13 21:10:28 CET 2008

alfred.pear at gmail.com wrote:
>can anyone reccomend a schematic for a simple FVC using only PLLs
>and/or op amps as ICs?
>many of the circuits i've found seem to include dedicated ICs or logic chips..

Look at datasheets for a CD4046, some are better than others with more schematic examples,
but they are there.  "Demodulated output" is a voltage that reflects the frequency.

-- 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.

More information about the Synth-diy mailing list