CD4046BE

Overview

The CD4046BE is a micropower phase-locked loop (PLL) integrated circuit manufactured by Texas Instruments. It is housed in a 16-pin plastic dual-in-line package (PDIP). The device operates within a supply voltage range of 3 V to 18 V and supports an operating temperature range from -55 °C to +125 °C. It integrates two phase comparators, a voltage-controlled oscillator (VCO), and a reference frequency divider. The maximum operating frequency for the VCO is specified at 2.4 MHz.

Feature Summary

• Integrates two distinct phase comparators to support various loop filtering requirements
• Includes a voltage-controlled oscillator with external timing components
• Features a built-in reference frequency divider for frequency synthesis applications

Applications

• Frequency modulation circuits
• Frequency synthesis systems
• Demodulation of FM signals

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to confirm the PDIP-16 package type and RoHS compliance status. Ensure that the ordering suffix matches the required lead-free specifications. Cross-reference the active status directly with the manufacturer's current product lifecycle data before procurement.

Selection Notes

Select this component when a low-power CMOS PLL solution is required for frequencies up to 2.4 MHz. Verify that the application environment falls within the -55 °C to +125 °C temperature range. Confirm that the system power supply remains stable between 3 V and 18 V. Evaluate whether the integrated phase comparators meet the specific loop bandwidth needs.

Part Context

This component belongs to the CD4000B series of CMOS logic devices produced by Texas Instruments. It serves as a foundational analog-digital hybrid circuit designed for general-purpose phase-locking tasks. The device provides a cost-effective alternative to discrete PLL implementations while maintaining compatibility with standard CMOS logic families.

Replacement Considerations

The CD4046BEE4 is a verified lead-free variant of this component. Other package options within the same family include CD4046BNSR and CD4046BPWR.