SY89828LHY

Clock Buffers, Drivers Overview

The SY89828LHY is a precision dual 1:10 fanout buffer/translator manufactured by Microchip Technology (originally Micrel). It features two banks of 10 differential LVDS outputs, each driven by a 2:1 input multiplexer capable of accepting LVDS or LVPECL signals. The device operates on a single 3.3V supply and supports maximum toggle frequencies up to 1GHz. Key electrical specifications include a within-device skew of less than 50ps, cycle-to-cycle jitter under 1ps RMS, and total jitter under 1ps peak-to-peak. It utilizes a 64-pin EPAD-TQFP package.

Clock Buffers, Drivers Feature Summary

• Dual 1:10 LVDS Fanout Buffer with 20 differential output pairs
• Integrated 2:1 Input Mux for LVDS and LVPECL signal selection
• Low Skew Performance: <50ps within-device skew at 1GHz
• Synchronous Output Enable (OE) to prevent runt clock pulses

Clock Buffers, Drivers Applications

• Enterprise networking infrastructure
• High-end server clock distribution
• Telecommunications systems requiring redundant clock switchover

Clock Buffers, Drivers Procurement Notes

Verify the component status as the source datasheet indicates an older revision from Micrel. Confirm current availability through Microchip Technology distributors, as legacy status may affect lead times. Ensure the specific H suffix corresponds to the Pb-Free Matte-Sn finish variant required for the design. Check moisture sensitivity levels and reflow soldering profiles appropriate for the TQFP package.

Clock Buffers, Drivers Selection Notes

Select this component when a high-density LVDS distribution solution with low skew is required. It is suitable for designs needing simultaneous LVDS and LVPECL input compatibility via internal muxing. Ensure PCB layout accommodates the 64-pin TQFP package and provides adequate thermal grounding for the exposed pad. Verify that the 3.3V power supply meets the specified voltage range of 3.0V to 3.6V.

Clock Buffers, Drivers Part Context

The SY89828L belongs to the Precision Edge family of clock buffers. Originally developed by Micrel, Inc., the product line was acquired by Microchip Technology. This specific part number represents the Pb-free version (H suffix) of the SY89828L, housed in a 64-pin TQFP package. It serves as a high-performance alternative to standard fanout buffers requiring precise timing alignment across multiple channels.

Clock Buffers, Drivers Replacement Considerations

Direct replacements should be sought within the Microchip SY89828 series. For similar functionality with different pin counts, consider the SY89826U (1:22) or SY89829U (LVPECL outputs). Verify package compatibility and electrical parameters before substitution.