SY58018UMI

Signal Switches, Multiplexers, Decoders Overview

The SY58018UMI is a high-speed, ultra-precision differential LVPECL 2:1 multiplexer manufactured by Microchip Technology. It supports data throughput up to 5 Gbps and clock frequencies exceeding 4 GHz. The device operates on a single supply voltage of either 2.5V ±5% or 3.3V ±10%. Key electrical parameters include a propagation delay of less than 240 ps from input to output and rise/fall times under 110 ps. It features an internal termination architecture accepting AC- or DC-coupled inputs with swings as low as 100 mV. The component is housed in a 16-lead QFN package measuring 3 mm x 3 mm and functions within an industrial temperature range of –40°C to +85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Features a unique three-pin input termination architecture that accepts differential AC- or DC-coupled signals without external level shifting or termination resistor networks.
• Provides 800 mV (100k compatible) LVPECL outputs with extremely fast rise and fall times guaranteed to be less than 110 ps.
• Delivers ultra-low jitter design performance suitable for precision timing applications.

Signal Switches, Multiplexers, Decoders Applications

• Redundant Clock Distribution
• SONET/SDH Clock/Data Distribution
• Loopback
• Fibre Channel Distribution

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix against the manufacturer's Product Identification System. Suffixes such as 'G' denote the industrial temperature range, while 'M' indicates the 16-lead QFN package. Confirm whether the required unit is supplied in tubes or tape and reel formats, as these are distinct part numbers. Ensure compatibility with the intended supply voltage environment before procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when interfacing with CML, PECL, or LVDS sources requiring minimal signal path components due to its internal termination. Consider the SY58017U if CML outputs are required instead of LVPECL. Alternatively, choose the SY58019U if a lower 400 mV LVPECL output swing is necessary for the application. Verify power supply constraints align with the specified 2.5V or 3.3V operating ranges.

Signal Switches, Multiplexers, Decoders Part Context

The SY58018UMI belongs to Microchip’s Precision Edge® product line, which focuses on high-speed logic solutions. This series includes various multiplexers and buffers designed for demanding telecommunications and networking environments. The device integrates advanced termination capabilities to simplify board layout and reduce component count compared to discrete solutions.

Signal Switches, Multiplexers, Decoders Replacement Considerations

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

Signal Switches, Multiplexers, Decoders FAQ

How does the SY58018UMI handle input termination?

The device utilizes a unique three-pin input termination architecture where each side of the differential input pair internally terminates to a VT pin through 50Ω resistors, eliminating the need for external termination networks.

What types of input signals can the SY58018UMI accept?

It accepts differential AC- or DC-coupled signals, including CML, PECL, and LVDS, with input voltage swings as small as 100 mV.