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ManufacturerMicrochip
SeriesSY89844U
Part NumberSY89844UMG

The SY89844U is a low jitter LVDS, 2:1 input multiplexer (MUX) optimized for redundant source switchover applications

Datasheets

  • Download » Datasheet, PDF, 582 Kb, 11-11-2015
    SY89844U Data Sheet
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    SY89844U
    Precision LVDS Runt Pulse Eliminator 2:1
    MUX with 1:2 Fanout and Internal Termination General Description
    The SY89844U is a low jitter LVDS, 2:1 input
    multiplexer (MUX) optimized for redundant source
    switchover
    applications.
    Unlike
    standard
    multiplexers, the SY89844U 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 outputs are 325mV LVDS with fast
    rise/fall times guaranteed to be less than 150ps.
    The SY89844U operates from a 2.5V ±5% supply ...

Prices

Status

Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)

Packaging

PackageVQFN
Pins24

Parametrics

Description2:01
Fail-Safe InputYes FSI
Operating Temperature Range-40 to +85 °C
Runt Pulse EliminatorYes RPE
Supply Voltage2.5V V
Within Device Skew20 Max

Eco Plan

RoHSCompliant

Moldel Line

Series: SY89844U (2)

Manufacturer's Classification

  • Clock and Timing > Clock and Data Distribution > Multiplexers

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