SY89295UTI

Overview

The SY89295UTI 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 input frequencies up to 1.5GHz. The device provides a programmable delay range of 3.2ns to 14.8ns in 10ps increments using a 10-bit control word. It features LVPECL inputs and outputs with low jitter characteristics, including less than 10ps peak-to-peak total jitter. The component is housed in a 32-pin TQFP package and is rated for industrial operating temperatures ranging from –40°C to +85°C.

Feature Summary

• Precision LVPECL programmable delay line with guaranteed AC performance over temperature and voltage
• Low-jitter design featuring less than 10ps peak-to-peak total jitter and less than 2ps RMS cycle-to-cycle jitter
• Programmable delay range from 3.2ns to 14.8ns in 10ps increments controlled by a 10-bit digital word
• Flexible control register interface accepting CMOS or TTL level signals

Applications

• Clock de-skewing
• Timing adjustments
• Aperture centering

Procurement Notes

Verify the specific ordering suffix UTI to confirm the 32-pin TQFP package type and Sn-Pb lead finish. Ensure compatibility with the required industrial temperature range and logic levels. Confirm RoHS status if lead-free compliance is mandatory for the assembly process. Check datasheet notes regarding die availability and tape and reel options.

Selection Notes

Select this component when precise digital delay adjustment is required for LVPECL signals up to 1.5GHz. Consider cascading multiple units via the D10 pin to extend the delay range beyond 14.8ns. Ensure the control interface matches the available CMOS or TTL logic levels. Verify that the 32-pin TQFP package fits the PCB layout constraints.

Part Context

The SY89295U belongs to Micrel’s Precision Edge product line, which focuses on high-speed timing solutions. This series includes related parts like the SY89296U, which offers fine-tune analog control. The SY89295U specifically targets applications requiring discrete digital delay steps without the complexity of analog tuning circuits.

Replacement Considerations

The SY89297UMG-TR is a dual-channel alternative offering 5ps step resolution. For single-channel replacements, verify package compatibility between TQFP and MLF variants. Cross-reference electrical specifications to ensure jitter and frequency limits meet system requirements.