SY89834UMG

Clock Buffers, Drivers Overview

The SY89834UMG is a high-speed Precision Edge fanout buffer and translator featuring a 2:1 input multiplexer. It accepts two single-ended LVTTL/CMOS inputs and provides four differential 100K LVPECL outputs. The device supports throughput frequencies up to 1 GHz with guaranteed AC performance over temperature and voltage. Key electrical parameters include a maximum propagation delay of 500 ps, within-device skew less than 20 ps, and output rise/fall times under 225 ps. It operates on dual supply voltages of 2.5V (±5%) or 3.3V (±10%).

Clock Buffers, Drivers Feature Summary

• Integrates a 2:1 MUX to select between two single-ended LVTTL/CMOS inputs.
• Generates four differential 100K LVPECL output copies with ultra-low jitter (<1ps RMS cycle-to-cycle).
• Guarantees low within-device skew of <20 ps across operating conditions.
• Includes a synchronous output enable (EN) input with internal pull-up resistor.

Clock Buffers, Drivers Applications

• Processor clock distribution and translation.
• SONET clock distribution and translation.
• Fibre Channel clock distribution and translation.
• Gigabit Ethernet clock distribution and translation.
• Single-ended ASIC-to-differential communication signal translation.

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'G' indicates a Pb-Free package with NiPdAu finish and a bar line indicator. Confirm the package type is MLF-16 (3mm x 3mm). Ensure the specific revision matches the required lead finish for RoHS compliance in the target assembly process.

Clock Buffers, Drivers Selection Notes

Select this component when translating single-ended TTL/CMOS signals to differential LVPECL with a 1:4 fanout ratio. It is suitable for applications requiring a 2:1 input selection capability. Verify that the system operates within the 2.5V or 3.3V supply ranges and requires a 16-pin MLF package.

Clock Buffers, Drivers Part Context

The SY89834U belongs to Micrel's Precision Edge family of high-speed, low-skew fanout buffers and translators. This series includes variants optimized for different I/O combinations such as LVDS or PECL. The SY89834U specifically addresses LVTTL/CMOS to LVPECL translation needs.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.