Microchip SY58013U Handleiding

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M9999-063010

hbwhelp@micrel.com or (408) 955-1690

6GHz, 1:2 FANOUT BUFFER/TRANSLATOR

w/400mV LVPECL OUTPUTS and INTERNAL

INPUT TERMINATION

Precision Edge®

SY58013U

Rev.: F Amendment: /0

Issue Date: November 2011

DESCRIPTION

■Precision 1:2, 400mV LVPECL fanout buffer

■Low jitter performance:

•55fsRMS phase jitter (typ)

■Accepts an input signal as low as 100mV

■Guaranteed AC performance over temperature and

voltage:

•> 6GHz fMAX clock

•< 80ps tr/tf times

•< 250ps tpd

•< 15ps max. skew

■Unique input termination and VT pin accepts

DC-coupled and AC-coupled differential

inputs: LVPECL, LVDS and CML

■400mV LVPECL compatible outputs

■Power supply 2.5V ±5% and 3.3V ±10%

■–40°C to +85°C temperature range

■Available in 16-pin (3mm x 3mm) QFN package

FEATURES

APPLICATIONS

■All SONET and All GigE clock distribution

■Fibre Channel clock and data distribution

■Backplanes

■Data distribution: OC-48, OC-48+FEC, XAUI

■High-end, low-skew, multiprocessor synchronous

clock distribution

The SY58013U is a 2.5V/3.3V precision, high-speed, fully

differential 1:2 LVPECL fanout buffer. Optimized to provide

two identical output copies with less than 15ps of skew and

only 55fsRMSphase jitter, the SY58013U can process clock

signals as fast as 6GHz or data patterns up to 10.7Gbps.

The differential input includes Micrel’s unique, 3-pin input

termination architecture that interfaces to LVPECL, LVDS,

and CML differential signals, (AC- or DC-coupled) as small

as 100mV without any level-shifting or termination resistor

networks in the signal path. For AC-coupled input interface

applications, an on-board output reference voltage (VREF-

AC) is provided to bias the VTpin. The outputs are 400mV

LVPECL compatible, with extremely fast rise/fall times

guaranteed to be less than 80ps.

The SY58013U 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 greater output swing or CML compatible outputs,

consider the SY58012U 1:2 fanout buffer with 800mV

LVPECL outputs, or the SY58011U 1:2 fanout buffer with

400mV CML outputs. The SY58013U is part of Micrel’s

high-speed, Precision Edge® product line. Datasheets and

support documentation can be found on Micrel’s web site at

www.micrel.com.

FUNCTIONAL BLOCK DIAGRAMTYPICAL PERFORMANCE

2GHz with 100mV Input

Precision Edge®

Precison Edge is a registered trademark of Micrel, Inc.

Product specificaties