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SY89859U

Part Number	SY89859U
Manufacturer	Micrel Semiconductor
Description	Precision Low-Power 8:1 MUX
Published	May 3, 2007
Detailed Description	SY89859U Precision Low-Power 8:1 MUX with Internal Termination and 1:2 LVPECL Fanout Buffer General Description The SY8...
Datasheet	SY89859U PDF File

Overview

SY89859U Precision Low-Power 8:1 MUX with Internal Termination and 1:2 LVPECL Fanout Buffer General Description The SY89859U is a low jitter, low-power, high-speed 8:1 multiplexer with a 1:2 differential fanout buffer Precision Edge® optimized for precision telecom and enterprise server Features distribution applications.
The SY89859U distributes clock frequencies from DC to >2.
5GHz, and data rates • Selects between 1 of 8 inputs, and provides 2 to 2.
5Gbps guaranteed over temperature and voltage.
precision, low skew 100K-compatible LVPECL output copies The SY89859U differential input includes Micrel’s unique, 3-pin input termination architecture that • Low power: 150mW typ.
(2.
5V) directly interfaces to any differential signal (AC- or • Guaranteed AC performance over temperature and DC-coupled) as small as 100mV (200mVpp) without voltage: level shifting or termination resistor networks in the – DC to >2.
5Gbps signal path.
The outputs are 800mV, 100K-compatible – DC to >2.
5GHz LVPECL with extremely fast rise/fall time guaranteed – <690ps propagation delay to be less than 180ps.
– <180ps tr/tf time The SY89859U features a patent-pending isolation – <20ps skew (output-to-output) design that significantly improves on channel-tochannel crosstalk-induced jitter performance.
• www.
DataSheet4U.
com Unique, patent-pending channel-to-channel isolation design provides superior crosstalk The SY89859U operates from a 2.
5V ±5% or 3.
3V performance ±10% supply and is guaranteed over the full industrial temperature range of –40°C to +85°C.
The SY89859U • Ultra-low jitter design: is part of Micrel’s high-speed, Precision Edge® product – <1psRMS random jitter line.
– <10psPP deterministic jitter All support documentation can be found on – <10psPP total jitter (clock) Micrel’s web site at: www.
micrel.
com.
– <1psRMS cycle-to-cycle jitter – <0.
7psRMS crosstalk-induced jitter • Unique, patented input termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS) • Power supply...

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