PLL using 4046
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.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 at Circuit Sage
Phase-Locked Loop Tutorial by Tony
