SY89852UMG

Signal Switches, Multiplexers, Decoders Overview

The SY89852UMG is a precision, low-power differential 2:1 multiplexer manufactured by Microchip Technology. It operates from a 2.5V ±5% or 3.3V ±10% supply and supports data rates up to 2.5Gbps and clock frequencies up to 2.5GHz. The device features an internal 3-pin input termination architecture accepting AC- or DC-coupled signals as small as 100mV without external level shifting. Outputs provide typical 800mV LVPECL swing with rise/fall times under 180ps. Propagation delay ranges from 140ps to 340ps depending on the signal path. It is housed in a 16-pin QFN package.

Signal Switches, Multiplexers, Decoders Feature Summary

• Features unique patent-pending 3-pin input termination architecture for flexible interface compatibility
• Provides ultra-low jitter performance with less than 1ps RMS random jitter
• Includes internal 25kΩ pull-up resistor on the SEL pin to default to logic HIGH state
• Delivers fast output transitions with guaranteed rise and fall times under 180ps

Signal Switches, Multiplexers, Decoders Applications

• Redundant clock distribution systems
• SONET/SDH clock and data distribution networks
• Fibre Channel distribution infrastructure
• Loopback testing configurations

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors. Confirm that the specific ordering suffix matches the required tape and reel or tube packaging configuration. Ensure compliance with RoHS directives and check for any relevant PCN documentation regarding package or assembly changes prior to final procurement authorization.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when interfacing differential signals requiring minimal external termination resistors. The internal VT pin simplifies design for both AC and DC coupled applications. Consider this part for high-speed clock routing where low power consumption and superior crosstalk isolation are critical requirements compared to standard multiplexers.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to Micrel's Precision Edge product line, now managed by Microchip Technology following acquisition. It serves as a specialized high-speed logic IC designed for demanding telecommunications and networking environments. The component replaces older generation multiplexers offering improved power efficiency and signal integrity characteristics.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The EP58 is documented as a previous alternative but may lack equivalent performance metrics. Verify pinout compatibility and electrical specifications against current design requirements before substituting.