CD4046BNSR

Overview

The CD4046BNSR 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 a maximum frequency of 2.4 MHz. The device is housed in a 16-SOIC package with a width of 5.30 mm. It functions as a single-channel PLL suitable for clock generation and frequency synthesis applications. The component is rated for operation across an extended temperature range from -55°C to +125°C, ensuring reliability in diverse environmental conditions.

Feature Summary

• Integrates a complete phase-locked loop system including a voltage-controlled oscillator and phase comparator on a single chip.
• Designed for micropower consumption, making it suitable for battery-operated or energy-efficient electronic systems.
• Features a wide operating supply voltage range to accommodate various logic families and power standards.

Applications

• Frequency modulation and demodulation circuits
• Clock recovery and synchronization systems
• Frequency synthesizers for communication equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and lead finish. Ensure the component meets RoHS compliance requirements for your region. Check for any recent Product Change Notifications regarding packaging updates or manufacturing site changes before finalizing procurement orders.

Selection Notes

Select this component when a low-power PLL solution is required for frequencies up to 2.4 MHz. Consider the 16-SOIC package constraints for PCB layout. Verify that the external passive components selected for the loop filter are compatible with the specified voltage and temperature ranges to maintain stable lock performance.

Part Context

This part belongs to the CD4000B series of CMOS logic devices produced by Texas Instruments. It is a surface-mount variant of the CD4046B, designed for automated assembly processes. The device is actively recommended for new designs, providing a cost-effective alternative to discrete PLL implementations in standard digital and analog mixed-signal applications.

Replacement Considerations

The CD4046BNSRG4 is a verified equivalent part number offering identical functionality with updated material specifications. Other variants such as CD4046BPWR provide the same electrical characteristics in a TSSOP package, requiring only pin-compatible footprint adjustments during substitution.