Microchip SY58036U Bedienungsanleitung

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Precision Edge

®

SY58036U

Micrel, Inc.

M9999-073010

[email protected] or (408) 955-1690

DESCRIPTION

■Provides six ultra-low skew copies of the selected

input

■2:1 MUX input included for clock switchover

applications

■Guaranteed AC performance over temperature and

voltage:

•Clockfrequencyrange:DCto>6GHz

•<300psIN-to-OUTt

pd

•<80pst

r

/ t

f

times

•<20psskew(output-to-output)

■Ultra-low jitter design:

•50fs

RMS

phasejitter(typ)

■Lowsupplyvoltageoperation:2.5Vand3.3V

■UniqueinputterminationandVT

pin accepts DC-

coupledandAC-coupledinputs(CML,PECL,LVDS)

■Uniqueinputisolationdesignminimizescrosstalk

■400mVLVPECL(100Kcompatible)outputswing

■–40°C to +85°C temperature range

■Availablein32-pin(5mmx5mm)MLF

®

package

FEATURES

6GHz,1:6400mVLVPECLFANOUT

BUFFERWITH2:1 MUX INPUT

AND INTERNAL TERMINATION

Precision Edge

®

SY58036U

APPLICATIONS

■Redundantclockdistribution

■AllSONET/SDHclockdistribution

■AllFibreChanneldistribution

■AllGigabitEthernetclockdistribution

The SY58036U is a 2.5V/3.3V precision, high-speed,

1:6 fanout buffer capable of handling clocks up to 6GHz.

A differential 2:1 MUX input is included for redundant clock

switchover applications.

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

termination architecture that allows the device 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 outputs are 400mV LVPECL

(100K temperature compensated), with extremely fast rise/

fall times guaranteed to be less than 80ps.

The SY58036U 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 CML outputs, consider the SY58034U or for 800mV

LVPECL outputs the SY58035U. The SY58036U is part of

Micrel’s high-speed, Precision Edge

®

product line.

All support documentation can be found on Micrel’s web

site at www.micrel.com.

FUNCTIONALBLOCKDIAGRAM

Precision Edge

®

Q0

/Q0

Q1

/Q1

Q2

/Q2

Q3

/Q3

Q4

/Q4

Q5

/Q5

IN0

/IN0

V

T0

50Ω

50Ω

IN1

/IN1

V

T1

50Ω

50Ω

0

1

Mux

SEL

(TTL/CMOS)

S

V

REF-AC0

V

REF-AC1

2:1 Mux

1:6 Fanout

Rev.: F Amendment: /0

Issue Date: July 2010

Precision Edge is a registered trademark of Micrel, Inc.

MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.

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