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ManufacturerMicrochip
SeriesSY89842U

The SY89842U is a low jitter CML, 2:1 differential input multiplexer (MUX) optimized for redundant source switchover applications

Datasheets

  • Download » Datasheet, PDF, 688 Kb, 11-10-2016
    SY89842U Data Sheet
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    NOT RECOMMENDED FOR NEW DESIGNS SY89842U
    Precision CML Runt Pulse Eliminator 2:1
    Multiplexer General Description
    The SY89842U is a low jitter CML, 2:1 differential
    input multiplexer (MUX) optimized for redundant
    source switchover applications. Unlike standard
    multiplexers, the SY89842U unique 2:1 Runt Pulse
    Eliminator (RPE) MUX prevents any short cycles or
    “runt” pulses during switchover. In addition, a unique
    Fail-Safe Input protection prevents metastable
    conditions when the selected input clock fails to a
    DC voltage (voltage between the pins of the
    differential input drops below 100mV).
    The differential input includes Micrel’s unique, 3-pin
    input termination architecture that allows customers
    to interface to any differential signal (AC-or DCcoupled) as small as 100mV (200mVPP) without any
    level shifting or termination resistor networks in the
    signal path. The output is 400mV CML with fast
    rise/fall times guaranteed to be less than 80ps.
    The SY89842U operates from a 2.5V ±5% or 3.3V
    ±10% supply and is guaranteed over the full
    industrial temperature range of –40°C to +85°C. The
    SY89842U is part of Micrel’s high-speed, Precision ...

Prices

Status

SY89842UMGSY89842UMG-TR
Lifecycle StatusNot Recommended for new designsNot Recommended for new designs

Packaging

SY89842UMGSY89842UMG-TR
PackageVQFNVQFN
Pins1616

Parametrics

SY89842UMGSY89842UMG-TR
Description2:012:01
Input TypeANYANY
Operating Temperature Range, °C-40 to +85-40 to +85
Output Frequency, Max22
Output TypeCMLCML
Propagation Delay, Max840840
Runt Pulse Eliminator, RPEYesYes
Supply Voltage, V2.5/3.3V2.5/3.3V

Eco Plan

SY89842UMGSY89842UMG-TR
RoHSCompliantCompliant

Moldel Line

Series: SY89842U (2)

Manufacturer's Classification

  • Clock and Timing > Clock and Data Distribution > Multiplexers

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