SP8401/KG/MPES

Overview

The SP8401/KG/MPES is a variable modulus prescaler designed for Very High Frequency (VHF) applications, operating within a frequency range of 50MHz to 300MHz. Manufactured by Zarlink, this component utilizes specialized circuit technology to achieve significantly lower phase noise compared to standard dividers. It features a 28-pin SOP package and includes modulus control inputs that are compatible with both CMOS and TTL logic levels, ensuring straightforward integration into digital control systems.

Feature Summary

• Delivers ultra-low phase noise performance through specialized internal circuit architecture
• Operates as a variable modulus prescaler across the VHF spectrum from 50MHz to 300MHz
• Features modulus control inputs compatible with standard CMOS or TTL logic families

Applications

• RF wireless communication systems requiring low phase noise
• Frequency synthesis circuits in VHF bands
• Phase-locked loop (PLL) prescaler stages

Procurement Notes

Verify the specific ordering suffixes against official Zarlink documentation to ensure correct package type and temperature grade. Confirm that the supplier provides valid traceability documents matching the original manufacturer's specifications. Cross-reference the part number with authorized distributor lists to avoid counterfeit components. Ensure the received units match the exact pinout and electrical characteristics defined in the official datasheet.

Selection Notes

Select this component when low phase noise is critical for VHF signal processing. The CMOS/TTL compatible control inputs simplify interface design with standard digital controllers. Consider the 28-SOP package constraints for PCB layout. Verify that the operating frequency range of 50MHz to 300MHz aligns with the system requirements before finalizing the selection.

Part Context

This device belongs to the RF Miscellaneous ICs and Modules category, specifically functioning as a prescaler. It is part of Zarlink's portfolio of radio frequency components designed for wireless applications. The SP8401 series addresses the need for high-performance frequency division in communication systems where signal purity is paramount.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Zarlink documentation for potential cross-references or updated series replacements.