SY89474UMG

Signal Switches, Multiplexers, Decoders Overview

The SY89474UMG is a Precision LVDS 2:1 multiplexer with 1:2 fanout and internal termination. It processes clocks up to 2.5GHz and data up to 2.5Gbps. The device operates from a 2.5V ±5% supply voltage, ranging from 2.375V to 2.625V. It features guaranteed AC performance over temperature and supply voltage, including less than 470ps in-to-out propagation delay and less than 150ps rise/fall times. Output-to-output skew is less than 20ps. The component utilizes a unique 3-pin input termination architecture for direct interfacing with differential signals as small as 100mV (200mVpp). It provides 325mV LVDS output swing and operates within an industrial temperature range of -40°C to +85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Selects between two input channels and provides two copies of the selected input signal
• Unique patent-pending input isolation design minimizes crosstalk
• Ultra-low jitter design ensures high signal integrity
• Accepts DC- and AC-coupled inputs including CML, PECL, and LVDS

Signal Switches, Multiplexers, Decoders Applications

• Clock switching
• Data distribution

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify that the specific ordering suffix matches the required package type and reel configuration. Confirm the manufacturer origin, as the datasheet indicates Micrel Inc., which may affect part identification in procurement systems. Ensure compatibility with the specified 2.5V power supply requirements and verify lead finish specifications against assembly constraints.

Signal Switches, Multiplexers, Decoders Selection Notes

Choose this component when a low-jitter 2:1 multiplexer with simultaneous dual outputs is required. It is suitable for applications needing direct interface with various differential logic families without external level shifting. Consider the QFN-24 package dimensions and thermal characteristics for PCB layout planning. Verify that the operating frequency and data rate requirements fall within the specified 2.5GHz and 2.5Gbps limits respectively.

Signal Switches, Multiplexers, Decoders Part Context

The SY89474U belongs to Micrel’s Precision Edge product line, designed for high-speed, precision timing applications. It is part of a family of multiplexers that includes variants like the SY89473U. The device is intended for use in environments requiring robust clock distribution and switching capabilities with minimal signal degradation.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The SY89473U is a related product offering similar functionality but with LVPECL outputs instead of LVDS. Users should evaluate output compatibility and interface requirements when considering this alternative.