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Product Variant Information section
Product Specification Section
Pricing Section

Stock: 300

On Order: 0
Factory Stock:Factory Stock: 5,900
Factory Lead Time: 9 Weeks
Minimum Order: 1
Multiple Of: 1
Quantity Web Price
1 $3.12
26 $2.60
100+ $2.36


Attributes Table
Input Voltage-Max 4V
Temperature Range -40°C to +85°C
Supply Voltage-Nom 2.375V to 3.6V
Frequency-Max 2GHz
Features and Applications

The SY89840UMG is a Part of SY89840U Series, low jitter PECL, 2:1 differential input multiplexer (MUX) optimized for redundant source switchover applications.
It comes in a Package of MLF-16 and its operating temperature ranges from -40 °C to 85 °C.


  • Selects between two sources, and provides a glitch-free, stable LVPECL output
  • Guaranteed AC performance over temperature and supply voltage:
    • Wide operating frequency: 1 kHz to >1.5 GHz
    • < 880ps In-to-Out tpd
    • < 190ps tr/tf
    • Unique patent-pending input isolation design minimizes crosstalk
  • Fail-safe input prevents oscillations Ultra-low jitter design:
    • <1psrms random jitter
    • <1psrms cycle-to-cycle jitter
    • <10pspp total jitter (clock)
    • <0.7psrms MUX crosstalk induced jitter
  • Unique patent-pending input termination and VT pin accepts DC-coupled and AC-coupled inputs (CML, PECL, LVDS)
  • 800 mV LVPECL output swing
  • 2.5 V ±5% or 3.3 V ±10% supply voltage


  • Redundant clock distribution
  • Fail-safe clock protection