SY89295UMI

Overview

The SY89295UMI is a programmable delay line from the Precision Edge product line, designed for high-speed signal timing adjustments. It operates on a 2.5V ±5% or 3.3V ±10% power supply and supports LVPECL inputs with CMOS/LVTTL control interfaces. The device provides a programmable delay range of 3.2ns to 14.8ns in 10ps increments using a 10-bit digital control word. It features low jitter performance, including less than 10ps peak-to-peak total jitter and less than 2ps RMS cycle-to-cycle jitter. The component is available in a 32-pin MLF package and functions reliably within an industrial temperature range of –40°C to +85°C.

Feature Summary

• Precision LVPECL programmable delay line with guaranteed AC performance over temperature and voltage
• Low-jitter design ensuring <10ps PP total jitter and <2ps RMS cycle-to-cycle jitter
• Programmable delay range from 3.2ns to 14.8ns in 10ps increments via 10-bit control word
• Parallel inputs accept LVPECL or CMOS/LVTTL signals with flexible logic threshold settings

Applications

• Clock de-skewing
• Timing adjustments
• Aperture centering

Procurement Notes

Verify the specific ordering suffix when sourcing components. The 'UMI' designation indicates the MLF-32 package type with Sn-Pb lead finish and Industrial operating range. Confirm that the procurement matches the required lead finish and package style for your assembly process. Cross-reference part numbers carefully as Micrel was acquired by Microchip Technology, which may affect documentation availability.

Selection Notes

Select this component for applications requiring precise digital delay control of LVPECL signals. Ensure the system supports the required 2.5V or 3.3V supply voltages. Verify that the control interface logic levels (CMOS/LVTTL) are compatible with the VCF and VEF biasing requirements. Consider cascading multiple units if delays exceeding 14.8ns are necessary, utilizing the D10 bit for extended range.

Part Context

The SY89295U belongs to Micrel’s Precision Edge product line, characterized by high-speed performance and low jitter. The UM variant specifically denotes the MLF-32 package. This series is designed for demanding timing applications where signal integrity and precise delay steps are critical. The device integrates internal circuitry to facilitate cascading without external gating, enhancing design flexibility.

Replacement Considerations

The SY89296U is a related device offering fine-tune analog control instead of purely digital steps. For direct pin-compatible replacements, verify package and electrical specifications against current Microchip offerings. Note that legacy Micrel parts may have transitioned to Microchip branding; ensure datasheet compatibility before substitution.