CD4046 belongs to the CD4000 IC series. The CD4046 micropower phase-locked loop (PLL) consists of 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. The IC offers a wide variety of features such as high noise immunity and low-frequency drift with a stabilized linear output.

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.)