SY58035UMI-TR

Clock Buffers, Drivers Overview

The SY58035UMI-TR is a high-speed, precision 1:6 LVPECL fanout buffer with an integrated 2:1 multiplexer input, manufactured by Microchip Technology (originally Micrel). It supports clock frequencies from DC to over 4.5GHz. Key electrical parameters include a maximum differential propagation delay of 320ps and output rise/fall times under 110ps. The device features ultra-low skew, guaranteed at less than 20ps between outputs, and typical RMS phase jitter of 50fs. It operates on a 2.5V ±5% or 3.3V ±10% supply within the industrial temperature range of –40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Provides six low-skew LVPECL copies of the selected input signal.
• Includes a differential 2:1 MUX input for redundant clock switchover applications.
• Features unique internal termination accepting AC- or DC-coupled CML, PECL, or LVDS inputs as small as 100mV.
• Operates at data rates up to 4.5GHz with <320ps IN-to-OUT propagation delay.

Clock Buffers, Drivers Applications

• Redundant clock distribution systems
• SONET/SDH clock and data distribution
• Fibre Channel distribution networks
• Gigabit Ethernet clock distribution

Clock Buffers, Drivers Procurement Notes

Verify that the ordering suffix 'TR' corresponds to the Tape and Reel packaging format as specified in the datasheet. Confirm the package type is MLF-32 and check for Pb-Free status if required, noting that the 'G' suffix indicates Pb-Free construction while standard versions may use Sn-Pb finishes. Ensure compatibility with the industrial temperature grade.

Clock Buffers, Drivers Selection Notes

Select this component when a 1:6 fanout buffer with integrated muxing is required for signals up to 4.5GHz. It is suitable for designs needing internal input termination for various logic families (CML/LVDS/PECL) without external resistors. Consider the SY58034U for CML outputs or SY58036U for 400mV LVPECL swings if specific output requirements differ.

Clock Buffers, Drivers Part Context

The SY58035U belongs to Micrel’s Precision Edge product line, designed for high-speed, low-jitter applications. The device was originally manufactured by Micrel, Inc., before being acquired by Microchip Technology. The part number SY58035UMI-TR specifically denotes the Industrial temperature grade and Tape & Reel packaging configuration.

Clock Buffers, Drivers Replacement Considerations

For CML output requirements, consider the SY58034U. For 400mV LVPECL output swing applications, the SY58036U is a compatible alternative within the same family. Both share similar functional architectures but differ in output drive characteristics.