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Product Variant Information section
Product Specification Section
Pricing Section

Stock: 1,000

On Order: 0
Factory Stock:Factory Stock: 2,000
Factory Lead Time: 8 Weeks
Minimum Order: 1,000
Multiple Of: 1,000
Quantity Web Price
1,000+ $7.56


Attributes Table
Input Voltage-Max 3.3V
Temperature Range -40°C to +85°C
Supply Voltage-Nom 2.375V to 3.6V
Frequency-Max 7GHz
Features and Applications

The SY58028UMG TR is a ultra-precision differential CML 4:1 multiplexer with 1:2 fanout and internal I/O termination, available in MLF-32 package.

This device is capable of handling clocks up to 7 GHz and data up to 10.7 Gbps and it includes unique, 3-pin input termination architecture that allows customers to interface to any differential signal (AC- or DC-coupled) as small as 100 mV without any level shifting or termination resistor networks in the signal path.


  • Selects 1 of 4 differential inputs
  • Provides two copies of the selected input
  • Guaranteed AC performance over temperature and voltage:
  • DC-to- > 10.7Gbps data rate throughput
    • < 350ps IN-to-Out tpd
    • < 60ps tr / tf times
  • Ultra low-jitter design:
    • < 10psPP total jitter (clock)
    • < 1psRMS random jitter
    • < 10psPP deterministic jitter
    • < 0.7psRMS crosstalk-induced jitter
  • Unique patended input design minimizes crosstalk
  • Accepts an input signal as low as 100 mV
  • Internal 50 Ω output source termination
  • 400mV CML output swing (RL = 50 Ω)
  • Power supply 2.5 V ±5% or 3.3 V ±10%
  • –40°C to +85°C temperature range
  • Available in 32-pin (5mm × 5mm) MLF® package


  • Redundant clock and/or data distribution
  • All SONET/SDH clock/data distribution
  • Loopback
  • All Fibre Channel distribution
  • All Ethernet clock and/or data distribution