IC Analog Multiplexers from Microchip Technology, Inc.

Clock and Data Distribution -- SY58609U

Clock and Data Distribution -- SY58609U -- View Larger Image
Clock and Data Distribution -- SY58609U-Image

The SY58609U is a 2.5/3.3V, high-speed, fully differential CML 2:1 MUX capable of processing clock signals up to 2.5GHz and data patterns up to 4.25Gbps. The SY58609U is optimized to provide a buffered output of the selected input with less than 20ps of skew and less than 10psPP total jitter.The differential input includes Micrel's unique, 3-pin input termination architecture that interfaces to LVPECL, LVDS or CML differential signals, (AC- or DC-coupled) as small as 100mV (200mVpp) without any level-shifting or termination resistor networks in the signal path. For AC-coupled input interface applications, an integrated reference voltage (VREF-AC) is provided to bias the VT pin. The outputs are 400mV CML, with extremely fast rise/fall times guaranteed to be less than 90ps.The SY58609U operates from a 2.5V ±5% supply or 3.3V ±10% supply and is guaranteed over the full industrial temperature range (-40°C to +85°C). For applications that require LVPECL or LVDS outputs, consider Micrel's SY58610U and SY58611U, 2:1 MUX with 800mV and 325mV output swings, respectively. The SY58609U is part of Micrel's high-speed, Precision Edge® product line.

Additional Features

    • Precision 400mV CML 2:1 MUX
    • Guaranteed AC performance over temperature and voltage:
      • DC-to >4.25Gbps throughput
      • <370ps propagation delay (IN-to-Q)
      • <90ps rise/fall times
    • Fail Safe Input
      • Prevents outputs from oscillating when input is invalid
      • Unique, patented MUX input isolation design minimizes adjacent channel crosstalk
      • Ultra-low jitter design
      • <1psRMS cycle-to-cycle jitter
      • <10psPP total jitter
      • <1psRMS random jitter
      • <10psPP deterministic jitter
    • High-speed CML outputs
    • 2.5V ±5% or 3.3V ±10% power supply operation
    • Industrial temperature range: -40°C to +85°C
    • Available in 16-pin (3mm x 3mm) QFN package

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