CD4046BEE4

Overview

The CD4046BEE4 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. Typical performance includes very low power consumption of 70 µW at a VCO frequency of 10 kHz with a 5 V supply, and an operating frequency range up to 1.4 MHz typical at 10 V supply with a 5 kΩ resistor. The unit is housed in a 16-lead plastic dual-in-line package (PDIP).

Feature Summary

• Integrates two distinct phase comparator options: an exclusive-OR network and an edge-controlled memory network providing phase-pulse output for lock indication.
• Features a voltage-controlled oscillator (VCO) with high linearity less than 1% typical at 10 V supply, alongside a source-follower output for demodulation.
• Includes VCO inhibit control functionality designed to support ON-OFF keying applications while maintaining ultra-low standby power consumption.
• Incorporates a Zener diode to assist with supply regulation and is fully tested for quiescent current at multiple parametric ratings.

Applications

• Frequency synthesis systems requiring stable carrier generation.
• FM demodulation circuits utilizing the VCO source-follower output.
• Motor speed control loops leveraging the PLL's tracking capabilities.
• Frequencies shift keying (FSK) decoding applications using VCO inhibit control.

Procurement Notes

Verify the component status as active for new designs when sourcing the CD4046BEE4. Confirm that the ordering suffix 'E4' denotes lead-free packaging compliant with RoHS standards. Ensure the procurement channel provides documentation verifying the 16-lead PDIP package type. Cross-reference the manufacturer part number against official Texas Instruments databases to confirm authenticity and current production status before finalizing orders.

Selection Notes

Select the CD4046BEE4 when a complete PLL solution is required in a single monolithic package. Choose this variant over the standard CD4046BE if lead-free compliance is mandatory for the assembly process. Consider the specific phase comparator requirements; use the exclusive-OR type for simple FM or AM detection, or the edge-controlled memory type for improved lock acquisition and noise immunity. Verify that the application voltage falls within the 3 V to 18 V operational range.

Part Context

The CD4046BEE4 belongs to the CD4000B series of CMOS logic devices produced by Texas Instruments. It is the lead-free, environmentally compliant version of the CD4046BE. This series is widely recognized for its compatibility with standard TTL logic levels and its ability to operate across a wide voltage spectrum. The 'E4' suffix specifically indicates the use of lead-free die attach wire and lead frame material, aligning with modern environmental regulations.

Replacement Considerations

The CD4046BE is the direct non-rohs equivalent. For pin-compatible replacements, consider the CD4046BF for ceramic packages or other variants like CD4046BPW for surface mount needs, ensuring functional equivalence in phase comparator selection and VCO characteristics.