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60 Hz Timebase with MM5369

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This is an example to generate 60 Hz timebase from crystal 3.579545MHz for multipurpose such as clock,timer,function generator

In data sheet determine C1 = 30 pF and C2 = 6.36pF

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Frequency divider with CD4017

This is an example to divider frequency with CD4017 IC.Swith S1-S10 use to select the divider for divide input frequency from 1-10.<cut>

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Random number with CD4017

This is an example to generate random number with CD4017 IC. To use this circuit you must have fast clock generator circuit connect to S1 of CD4017.<cut>

Random number with CD4017
This is an example to generate random number with CD4017 IC. To use this circuit you must have fast clock generator circuit connect to S1 of CD4017.
CD4017 Data sheet
Download CD4017 pdf data sheet here

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Posistive one-shot

Posistive one-shot by 4528<cut>

IC 4528 CMOS is dual monostable Multivibrator that can trig both rise ad fall edge. T1 and T2 use determine input timming,RST is reset and +/-IN is input tringger.

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Stepped wave generator with 4042 and 7555

This circuit will generate stepped wave.You can determine the output frequency by adjust R 100K .
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R1=R3 = 22K
R2 = 33K

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Square wave generator with CD4070

with this circuit it can generate square wave up to 2 MHz
In this example I use CD4070 CMOS. <cut>

VDD : 3-15V
Frequency : 2MHz at VDD 10V
Risetime : 50 nS

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10 MHz oscillator

This circuit can oscillate up to 10 MHz at VDD 3-15V. You can determine the output frequency by chaging VDD(see table). <cut>
In this example I use 4070 CMOS.

VDD(V) Frequency(MHz) Amplitude(V)
5 2.4 3.5
10 9.4 8.0
15 11.0 12.0

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Phase detector

<cut> Phase detector is the circuit that use to compare the phase of input signal.In the buttom circuit the LED will turn off when the phase of input signal is same.

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Gate tone generator

Gate tone generator with CD4001 This is a simple example sound generate which use NOR gate CMOS CD4001.<cut>
It will gernerate tone when pin 1 of IC 1/1 trigged.This example will generate tone at about 1KHz.You can change R and C for other frequency.

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Bounceless switch

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This is a simple bounceless switch which use NOR gate CMOS CD4001

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