Microchip | SY89855UMG

The SY89855UMG is a precision, high speed, 4:1 differential multiplexer with 100K LVPECL (800 mV) compatible outputs. Available in surface mount MLF-32 package.

This device is part of Micrel's highspeed, Precision Edge product line and is capable of handling clocks up to 2.5 GHz and data streams up to 2.5 Gbps. In addition, a 1:2 fanout buffer provides two copies of the selected inputs.

Features:

• Select 1 of 4 differential inputs
• Provides two copies of the selected input
• Low power 260 mW (VCC = 2.5 V)
• Guaranteed AC performance over temperature and voltage:
  • DC-to- >2.5 Gbps data rate throughput
  • <410ps In-to-Q tpd
  • <180ps tr/ tf times
• Ultra low-jitter design:
  • <10psPP total jitter (clock)
  • <1psRMS random jitter
  • <10psPP deterministic jitter
  • <0.7psRMS crosstalk-induced jitter
• Unique, patent-pending input design minimizes crosstalk
• Accepts an input signal as low as 100 mV
• Unique patented input termination and VT pin accepts DC- and AC-coupled inputs (CML, LVPECL, LVDS)
• 800 mV 100K LVPECL output swing
• Power supply 2.5 V ±5% or 3.3 V ±10%
• -40°C to +85°C temperature range
• Available in 32-pin (5mm x 5mm) QFN package

Applications:

• Redundant clock and/or data distribution
• All SONET/OC-3 to OC-48 clock/data distribution
• Loopback
• All Fibre Channel applications
• All GigE applications