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.

特性 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