4046 Ten Times Frequency Multiplier Circuit

Ten Times 10X Frequency Multiplier

CD4046 Ten Times 10× Frequency Multiplier Circuit

For 1Hz to 1KHz input range, we design a VCO to cover 10Hz to 10KHz, with some extra range on each end. the VCO output is divided by 10 and then compared to the input signal using the wideband phase detector. The phase-detector output goes to the loop filter and then reaches around and closes the loop by running the VCO.

Ten Times 10X Frequency Multiplier Circuit

R1 100kΩ
R2 10kΩ
R3 6.8kΩ
C1 1µF
C2 0.01µF
IC1 4046
IC2 7490

In this circuit, the CD4046 is set up so that the VCO operates at 10Hz 10 10KHz. The output pin (4) is fed back to a ÷10 counter.

CD4046BC micropower Phase Locked Loop 4046 pin configuration

4046 PIN Configuration

When the input frequency is 1/10 the output, lockup will occur.

Ten Times 10X Frequency Multiplier circuit 4046 7490 555 Ten Times 10X Frequency Multiplier 7490 SN74LS90N 7490N BINARY COUNTER IC pin configuration

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