SY89468UHY-TR

Clock Buffers, Drivers Overview

The SY89468UHY-TR is a Precision LVDS 1:20 fanout buffer with an integrated 2:1 differential input multiplexer. It operates from a 2.5V ±5% supply and supports frequencies up to 1.5GHz. The device features internal termination, fail-safe input protection, and ultra-low jitter performance (<1ps RMS random). Outputs are LVDS compatible with rise/fall times under 270ps. It is housed in a 64-pin EPAD-TQFP package and functions within the industrial temperature range of –40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• 1:20 LVDS fanout buffer with 2:1 differential MUX
• Fail-Safe Input (FSI) prevents metastable outputs during signal loss
• Internal termination architecture for AC/DC-coupled inputs
• Ultra-low jitter design (<1ps RMS random, <10ps PP total)

Clock Buffers, Drivers Applications

• Fail-safe clock protection
• Ultra-low jitter LVDS clock or data distribution
• Rack-based Telecom/Datacom Markets
• LAN/WAN infrastructure
• Enterprise servers

Clock Buffers, Drivers Procurement Notes

Verify that the component is sourced from authorized distributors to ensure authenticity. Confirm the presence of the Pb-Free bar-line indicator on the marking. Ensure the package type matches the 64-pin EPAD-TQFP specification. Check for RoHS compliance documentation if required by local regulations.

Clock Buffers, Drivers Selection Notes

Select this part when a low-jitter LVDS fanout buffer with dual-input selection is required. Ensure the system operates at 2.5V ±5%. Verify that the PCB layout accommodates the 64-pin TQFP package and provides adequate thermal management via the exposed pad. Consider the 1.5GHz maximum frequency limit for high-speed applications.

Clock Buffers, Drivers Part Context

The SY89468U belongs to Micrel’s Precision Edge product line, designed for high-speed signal integrity. The 'HY' suffix indicates the specific 64-pin EPAD-TQFP package variant. The '-TR' suffix denotes the Tape and Reel packaging format, suitable for automated surface-mount assembly processes.

Clock Buffers, Drivers Replacement Considerations

The SY89467UP is listed as a related product offering similar functionality but with LVPECL outputs instead of LVDS. Direct pin-to-pin replacement requires verifying output compatibility with the downstream circuitry.