Questions tagged [74hc4046]

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Calculating Rs Value for 32kHz Pierce-Gate Crystal Oscillator Circuit

Edit: My primary objective is to learn the mathematical model to compute the load resistor \$R_s\$ to satisfy a given crystal's drive level, not just fixing the one instance below. I'm building a ...
0
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0answers
37 views

In need of help to figure out why my 4046. demodulator circuit simulation is giving me errors

I’m currently doing a project on FM modulation and demodulation and on my proteus simulation I just can’t figure out how to do away with the two errors I keep getting. Here are the images of my ...
5
votes
1answer
225 views

Help to translate jitter design constraint in a frequency synthesizer design with 4046 and 4017 ICs

I'm trying to design a frequency synthesizer with the old-school 4046 and 4017 ICs, with a scaling factor N = 1,5,7,10. The input signal is a square wave with adjustable frequency from 1 kHz to 10 ...
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2answers
103 views

Strange parameters in datasheet of 74HC4046

In datahseet of 74HC4046, page. 10. Why the typical value may bigger than the max. value, or lower than the min. value? I don't think it's a typo, because there are others like this, such as p. 16 ...