1. G

    PLL 4046 Question

    Busy with the 4046 to try to find the self resonance frequency from a L/C combination and lock that frequency to get maximum output. What I did: By selecting R1 and C1 create Fc and with R1 make pin11 2.5 Volt The Loop filter for PC2 on pin 13 has a 90 degree phase difference to lock better...
  2. C

    Resonant PLL Circuit

    HELP!!! so, the thing is that i have been trying to build a resonant high frecuency circuit to control a variable capacitor, this capacitor can support high voltage and high frecuency but its variable due to the electrolite it contains.. so I have been tryin to desing it and have come with a...
  3. Adrienboub

    Frequency Range 4046 Proteus

    Hello everyone, First of all sorry for my bad english. I want to simulate on Proteus FM demodulation with 4046. I know that the center frequency Fo depends on the value of R1 and C1. I try to do this application circuit and it doesn't work too: I try to change the value of Fo according to the...
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