SP8400/KG/MPFP

Overview

The SP8400/KG/MPFP is a programmable frequency divider from Zarlink, designed for UHF applications. It operates within a frequency range of 200MHz to 1.5GHz and functions as a divide-by-8 or divide-by-9 counter. The device utilizes a dual modulus prescaler architecture combined with a 12-stage control counter to achieve low phase noise performance. It is housed in a 28-SOP surface-mount package.

Feature Summary

• Implements a divide-by-8/9 dual modulus prescaler architecture
• Integrates a 12-stage control counter for programmable division
• Engineered for very low phase noise operation

Applications

• UHF frequency synthesis systems
• Phase-locked loop (PLL) reference dividers
• RF signal processing circuits requiring precise frequency division

Procurement Notes

Verify the specific suffix MPFP against official Zarlink documentation to confirm package type and temperature grade. Ensure compatibility with 5V supply requirements if applicable. Cross-reference datasheet revision dates to confirm pinout consistency. Confirm RoHS compliance status through manufacturer declarations rather than distributor listings alone.

Selection Notes

Select this component when a fixed divide-by-8 or divide-by-9 ratio is required in the feedback path of a PLL. Consider the 200MHz to 1.5GHz operating range relative to the target VCO frequency. Evaluate the 28-SOP package constraints against PCB layout space. Compare phase noise specifications against system jitter budgets before finalizing the choice.

Part Context

The SP8400 belongs to Zarlink's family of RF misc ICs and modules, specifically focusing on programmable logic devices for radio frequency applications. This series typically includes variants like the SP8401, offering different division ratios or features while maintaining similar architectural foundations for high-frequency signal processing tasks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify functional equivalence with other Zarlink SP8xxx series components only if official cross-reference data is obtained from the manufacturer.