CMOS Micropower Phase Locked Loop, 2.4MHz, 3V to 18V, DIP 16

The CD4046BE is a highly versatile and efficient CMOS micropower phase-locked loop (PLL) integrated circuit, housed in a standard 16-pin Dual In-line Package (DIP). Engineered for minimal power draw, it is an ideal choice for battery-powered and energy-sensitive applications across industrial, communications, and consumer electronics.

At its core, the device integrates a low-power, linear voltage-controlled oscillator (VCO) and two distinct phase comparators, which share a common signal input amplifier and comparator input. This design provides flexibility for various phase-detection schemes, including edge-triggered and digital-type phase comparison. For added design convenience, a 5.2V zener diode is included on-chip for optional supply regulation.

Key performance specifications underscore its efficiency and stability. It consumes a remarkably low 70µW of power when operating at a VCO frequency of 10kHz with a 5V supply. It achieves a maximum operating frequency of 2.4MHz under conditions of VDD = 15V and R1 = 5kΩ. The VCO exhibits excellent frequency stability with a low drift of just 0.04% per °C at a 10V supply.

The device offers a wide supply voltage range from 3V to 18V, accommodating a variety of system designs. Features such as VCO inhibit control facilitate efficient ON-OFF keying and ensure ultra-low standby power consumption. A source follower output for the VCO control input also serves as a demodulation output, useful in communication systems. Its outputs are standardised and symmetrical, with parametric ratings provided for 5V, 10V, and 15V operation, ensuring reliable performance across common logic levels.

Built to withstand demanding environments, the CD4046BE operates reliably across an extensive temperature range from -55°C to 125°C. This combination of low power, wide voltage range, and robust construction makes it a fundamental component for precision timing, frequency synchron