CD74HCT4046AM96

Overview

The CD74HCT4046AM96 is a high-speed CMOS phase-locked loop (PLL) integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 5.5V and supports a maximum frequency of 38MHz. The device is housed in a 16-SOIC package with a width of 3.90mm and functions across an extended temperature range from -55°C to +125°C. It integrates a linear voltage-controlled oscillator (VCO) and three distinct phase comparators, enabling versatile clock synchronization and frequency synthesis applications.

Feature Summary

• Integrates a linear voltage-controlled oscillator (VCO) utilizing linear operational amplifier technology for improved linearity.
• Includes three selectable phase comparators (PC1, PC2, and PC3) to accommodate various loop filter requirements.
• Features a self-biasing input circuit that maintains small voltage signals within the linear region of the input amplifier.

Applications

• Clock recovery circuits in digital communication systems
• Frequency synthesizers for signal generation
• Motor speed control loops

Procurement Notes

Verify the specific suffix 'M96' against the manufacturer's official documentation to confirm the tape-and-reel packaging configuration. Ensure the component meets RoHS3 compliance standards as indicated in public records. Cross-reference the DigiKey part number 296-9275-5-ND or equivalent distributor identifiers to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a 5V logic interface is required, as the HCT series ensures compatibility with TTL inputs. The 16-SOIC package is suitable for surface-mount assembly. Consider the 38MHz maximum operating frequency limit for high-speed timing applications. Verify that the single-circuit topology meets the system's phase comparison needs without requiring additional external PLL stages.

Part Context

This device belongs to the CD74HCT4046A family, which is pin-compatible with the legacy CD4046B series. It represents the high-speed CMOS (HCT) variant, offering faster switching speeds compared to standard HC or 4000B series devices while maintaining 5V logic levels. The AM96 designation specifically identifies the SOIC package and reel packaging format.

Replacement Considerations

CD74HC4046AM96: Compatible alternative using HC technology with a wider voltage range of 2V to 6V. CD74HCT4046APWR: Equivalent HCT function in a TSSOP-16 package. CD4046BCN: Legacy DIP-compatible version with slower performance characteristics.