CD4046 datasheet is a CMOS Micropower Phase-Locked Loop.
CD4046 consists of a low power, linear voltage-controlled oscillator (VCO) and two different phase comparators having a common signal-input amplifier and a common comparator input. A 5.2 V zener diode is provided for supply regulation if necesary.
– fm demodulator and modulator
– frequency synthesis and multiplication
– frequency discriminator
– data synchronization
– voltage-to-frequency conversion
– tone decoding
– FSK – modems
– signal conditioning