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SY58028U

Part Number	SY58028U
Manufacturer	Micrel Semiconductor
Description	ULTRA PRECISION DIFFERENTIAL LVPECL 4:1 MUX
Published	Nov 10, 2006
Detailed Description	Micrel, Inc. ULTRA PRECISION DIFFERENTIAL CML 4:1 MUX WITH 1:2 FANOUT AND INTERNAL I/O TERMINATION Precision Edge® Pre...
Datasheet	SY58028U PDF File

Overview

Micrel, Inc.
ULTRA PRECISION DIFFERENTIAL CML 4:1 MUX WITH 1:2 FANOUT AND INTERNAL I/O TERMINATION Precision Edge® Precision ESdY5g8e0®28U SY58028U FEATURES United States Patent No.
RE44,134 ■ Selects 1 of 4 differential inputs ■ Provides two copies of the selected input ■ Guaranteed AC performance over temperature and voltage: • DC-to- > 10.
7Gbps data rate throughput • < 350ps IN-to-Out tpd • < 60ps tr / tf times ■ Ultra low-jitter design: • < 10psPP total jitter (clock) • < 1psRMS random jitter • < 10psPP deterministic jitter • < 0.
7psRMS crosstalk-induced jitter ■ Unique patended input design minimizes crosstalk ■ Accepts an input signal as low as 100mV ■ Unique patended input termination and VT pin accepts DC- and AC-coupled inputs (CML, LVPECL, LVDS) ■ Internal 50Ω output source termination ■ 400mV CML output swing (RL = 50Ω) ■ Power supply 2.
5V ±5% or 3.
3V ±10% ■ –40°C to +85°C temperature range ■ Available in 32-pin (5mm × 5mm) MLF® package Precision Edge® DESCRIPTION The SY58028U is a 2.
5V/3.
3V precision, high-speed, 4:1 differential CML multiplexer capable of handling clocks up to 7GHz and data streams up to 10.
7Gbps.
In addition, a 1:2 fanout buffer provides two copies of the selected inputs.
The differential input includes Micrel’s unique, 3-pin input termination architecture that allows customers to interface to any differential signal (AC- or DC-coupled) as small as 100mV without any level shifting or termination resistor networks in the signal path.
The result is a clean, stub-free, low-jitter interface solution.
The outputs are 50Ω source terminated CML, with extremely fast rise/fall times guaranteed to be less than 60ps.
The SY58028U operates from a 2.
5V ±5% supply or a 3.
3V ±10% supply and is guaranteed over the full industrial temperature range of –40°C to +85°C.
For applications that require LVPECL outputs, consider the SY58029U or SY58030U Multiplexers.
The SY58028U is part of Micrel’s high-speed, Precision Edge® product line.
All support d...

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