CD4046 is a PLL or phase lock loop, it mainly consists of a VCO and phase comparators. This is a component in FM demodulation and modulation.
Mixed and Interface Circuits
It is used in a closed loop control to maintain a stable frequency. The Circuit above is good for learning the full use of a small Dual Trace Scope. The Circuit has both Analog and Digital areas and is a part of communication.
PLL circuits are now frequently being used to demodulate FM signals, making obsolete the Foster-Seerly and radio detectors of the early years. Other applications for PLL circuits include AM demodulators, FSK decoders, two-tone decoders and motor speed controls.
- Phase-Locked Loop Tutorial, PLL
- Tutorial on Digital Phase-Locked Loops pdf
- Phase Locked Loop Basics pdf
- Optical obstacle switch - del50006
Read the pages above for building more Knowledge on PLL