SY89297UMG-TR

Overview

The SY89297UMG-TR is a dual-channel programmable delay line supporting DC to 3.2 Gbps data rates and 1.6 GHz clock frequencies. It operates on a 2.5V ±5% or 3.3V ±10% supply with an industrial temperature range of -40°C to +85°C. Each channel provides a 5 ns programmable delay range in 5 ps increments, utilizing a 10-bit serial control interface (SDATA, SCLK, SLOAD). The device features CML differential outputs, low jitter design with 1 ps RMS typical random jitter, and is housed in a 24-lead 4 mm x 4 mm QFN package.

Feature Summary

• Dual independent channels with serial programming via SDATA, SCLK, and SLOAD pins
• High precision delay steps with guaranteed monotonicity and linearity over temperature and voltage
• Low-jitter architecture designed for high-speed signal integrity applications
• Supports cascading multiple units to extend total delay capability

Applications

• Clock de-skewing
• Timing adjustments
• Aperture centering
• System calibration

Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging when sourcing. Confirm the operating temperature grade matches system requirements, as other variants exist. Ensure ESD precautions are followed during handling due to moisture sensitivity. Validate that the 24-pin QFN footprint aligns with the PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this component when precise, programmable delay adjustment is required for dual-channel CML signals up to 3.2 Gbps. Consider the SY89295U or SY89296U if only a single channel is needed. Verify that the 5 ps resolution meets the timing accuracy requirements of the target application. Ensure the power supply rails can accommodate the specified voltage tolerances for stable operation.

Part Context

This part belongs to the Precision Edge family of timing components from Microchip Technology. It serves as a dual-channel alternative to single-channel delay lines like the SY89295U. The device is designed to replace older Micrel parts with enhanced performance characteristics and improved linearity specifications for modern high-speed digital systems.

Replacement Considerations

SY89295UMG-TR

FAQ

How is the delay programmed?

The delay is programmed using a 3-pin serial interface consisting of SDATA, SCLK, and SLOAD. A 20-bit word controls both channels simultaneously.

What is the maximum operating frequency?

The device supports a maximum operating frequency of 1.6 GHz for clock signals and 3.2 Gbps for NRZ data.

Can multiple devices be used together?

Yes, multiple SY89297U delay lines can be cascaded together to achieve increased total delay ranges.