CD4046BE-NG

Overview

The CD4046BE is a CMOS micropower phase-locked loop (PLL) integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 18 V and supports an operating temperature range from -55 °C to +125 °C. The device features two selectable phase comparators: an exclusive-OR network and an edge-controlled memory network with phase-pulse output for lock indication. It includes a voltage-controlled oscillator (VCO) with high linearity, a source-follower output for demodulation, and a VCO inhibit control for ON-OFF keying. The component is housed in a 16-lead dual-in-line plastic package (PDIP) and is RoHS compliant.

Feature Summary

• Dual phase comparator selection between exclusive-OR and edge-controlled memory networks
• Voltage-controlled oscillator with high linearity and source-follower demodulation output
• VCO inhibit control capability for ON-OFF keying and ultra-low standby power consumption

Applications

• Frequency synthesis
• FM demodulation
• FSK demodulation
• Motor speed control

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum to confirm the exact physical package type, lead finish material, and moisture sensitivity level. Ensure that the procurement channel provides documentation confirming compliance with the JEDEC Tentative Standard No. 138 requirements for 'B' Series CMOS devices as specified in the datasheet.

Selection Notes

Select this component when a low-power PLL solution is required across a wide industrial temperature range. The availability of two distinct phase comparators allows optimization for different loop bandwidths and noise performance requirements. Verify that the external passive components selected for the VCO frequency setting align with the desired operating frequency range up to 1.4 MHz at typical conditions.

Part Context

The CD4046BE belongs to the CD4000 series of CMOS logic devices produced by Texas Instruments. This series is designed to meet JEDEC Tentative Standard No. 138 specifications. The device represents a standard catalog product intended for general-purpose applications requiring phase-locked loop functionality without the need for military-grade qualification.

Replacement Considerations

CD4046BEE4

FAQ

What are the two types of phase comparators available in the CD4046BE?

The CD4046BE provides a choice between an Exclusive-OR network phase comparator and an Edge-controlled memory network phase comparator with phase-pulse output.

Does the CD4046BE support ON-OFF keying?

Yes, the device includes a VCO inhibit control specifically designed to facilitate ON-OFF keying operations.

What is the maximum operating frequency of the VCO section?

The typical operating frequency range extends up to 1.4 MHz at a supply voltage of 10 V with a timing resistor of 5 kΩ.