SY89202UMG

Clock Buffers, Drivers Overview

The SY89202UMG is a precision, high-speed integrated clock divider and LVPECL fanout buffer manufactured by Micrel. It supports input frequencies up to 3.0 GHz and output toggle frequencies up to 1.5 GHz. The device features three independently controlled output banks capable of ÷1, ÷2, or ÷4 division ratios. It utilizes an internal 3-pin input termination architecture compatible with CML, PECL, and LVDS signals. Power supply requirements are 2.5V ±5% or 3.3V ±10%. The component operates within an industrial temperature range of –40°C to +85°C and is housed in a 32-pin QFN package.

Clock Buffers, Drivers Feature Summary

• Three low-skew LVPECL output banks with programmable ÷1, ÷2, and ÷4 divide ratios
• Internal input termination accepting AC- or DC-coupled signals as small as 100mV (CML, PECL, LVDS)
• Ultra-low jitter design: <1ps RMS random jitter and <10ps PP total jitter
• Guaranteed AC performance over temperature and voltage for frequencies exceeding 1.5GHz

Clock Buffers, Drivers Applications

• SONET/SDH channel select applications
• Fibre Channel multi-channel select applications
• Gigabit Ethernet multi-channel select applications

Clock Buffers, Drivers Procurement Notes

Verify the manufacturer origin, as the datasheet identifies Micrel Inc. while the model prefix may imply Microchip Technology acquisition. Confirm the specific ordering suffix (e.g., UMG vs. UMGTR) matches the required packaging format, such as tube or tape and reel. Ensure the procurement documentation aligns with the verified local source material provided.

Clock Buffers, Drivers Selection Notes

Select this component when designing systems requiring precise clock distribution with flexible division options. It is suitable for applications needing phase-matched outputs across multiple banks. Verify that the system power supply meets the 2.5V ±5% or 3.3V ±10% specifications. Ensure the input signal interface matches the supported CML, PECL, or LVDS standards utilizing the internal termination.

Clock Buffers, Drivers Part Context

The SY89202U belongs to Micrel’s Precision Edge® product family. This series focuses on high-performance clocking solutions for communications infrastructure. The UM suffix indicates a lead-free, Pb-Free package with NiPdAu finish, available in a 32-pin QFN form factor designed for surface mount technology.

Clock Buffers, Drivers Replacement Considerations

The SY89200U is a related product offering similar functionality but with LVDS outputs instead of LVPECL. When substituting, verify that the output logic levels and termination requirements of the target circuitry are compatible with LVDS signaling rather than the LVPECL standard used by the SY89202UMG.