CD4046BCMX Datasheet PDF - Fairchild

General Description

●The CD4046BC micropower phase-locked loop (PLL) con sists of a low power, linear, voltage-controlled oscillator (VCO), a source follower, a zener diode, and two phase comparators. The two phase comparators have a common signal input and a common comparator input. The signal input can be directly coupled for a large voltage signal, or capacitively coupled to the self-biasing amplifier at the signal input for a small voltage signal.

●Features

●■ Wide supply voltage range: 3.0V to 18V

●■ Low dynamic power consumption: 70 µW (typ.) at fo = 10 kHz, VDD = 5V

●■ VCO frequency: 1.3 MHz (typ.) at VDD = 10V

●■ Low frequency drift: 0.06%/°C at VDD = 10V with temperature

●■ High VCO linearity: 1% (typ.)

●Applications

●• FM demodulator and modulator

●• Frequency synthesis and multiplication

●• Frequency discrimination

●• Data synchronization and conditioning

●• Voltage-to-frequency conversion

●• Tone decoding

●• FSK modulation

●• Motor speed control