SY89876LMG

Overview

The SY89876LMG is a Precision Edge clock divider and fanout buffer operating at 3.3V with a maximum frequency of 2.0GHz. It integrates a programmable divider (ratios of 1, 2, 4, 8, or 16) and a 1:2 LVDS-compatible fanout buffer. The device features internal 50Ω input termination accessible via the VT pin for flexible interface compatibility with CML, PECL, LVDS, and HSTL standards. Key performance metrics include less than 15ps within-device skew, under 10ps peak-to-peak total jitter, and propagation delays ranging from 540ps to 870ps depending on input swing. It operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated programmable clock divider with ratios of 1, 2, 4, 8, and 16
• Flexible differential input buffer with internal 50Ω termination and VT pin for DC/AC coupling support
• Low jitter design with <10ps PP total jitter and <1ps RMS cycle-to-cycle jitter
• LVDS-compatible outputs with parallel programming capability via S0-S2 pins

Applications

• SONET/SDH line cards
• Transponders
• High-end multiprocessor servers

Procurement Notes

Verify that the specific part number suffix matches the required packaging format. The 'LMG' designation indicates a Pb-Free MLF-16 package with NiPdAu finish. Confirm whether tape-and-reel quantities are needed by checking for the 'TR' suffix in the ordering information. Ensure the procurement documentation aligns with the RoHS compliance status specified for this variant.

Selection Notes

Select this component when interfacing high-speed differential clocks (CML, PECL, LVDS, HSTL) to LVDS loads requiring frequency division. The VT pin allows customization of input termination for various logic standards. Ensure the application requires the specific 1:2 output configuration and that the 3.3V supply voltage aligns with the system power architecture. Verify thermal management requirements for the exposed pad in the MLF-16 package.

Part Context

This device belongs to the Precision Edge family originally developed by Micrel, which was subsequently acquired by Microchip Technology. The product line focuses on low-jitter clock distribution and conditioning solutions. The SY89876L specifically addresses applications needing both frequency division and signal buffering in a compact form factor.

Replacement Considerations

The SY89873L is a related device offering similar functionality but with a higher maximum frequency of 2.5GHz. When considering replacements, verify that the alternative component supports the same input/output standards and package dimensions to ensure mechanical compatibility.