Microchip SY58035U Bruksanvisning
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1
M9999-073010
hbwhelp@micrel.com 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:
•Clockfrequencyrange: DCto>4.5GHz
• <320psIN-to-OUTtpd
• <110pstr
/ tf times
• <20psskew(output-to-output)
■Ultra-low jitter design:
• 50fsRMSphasejitter(typ)
■Lowsupplyvoltageoperation: 2.5Vand3.3V
■UniqueinputterminationandVTpinacceptsDC-
coupledandAC-coupledinputs(CML,PECL,LVDS)
■Uniqueinputisolationdesignminimizescrosstalk
■100KLVPECLcompatibleoutputswing
■–40°Cto+85°Ctemperaturerange
■Availablein32-pin(5mmx5mm)MLF® package
FEATURES
4.5GHz,1:6LVPECLFANOUT
BUFFERWITH2:1 MUX INPUT
AND INTERNAL TERMINATION
Precision Edge®
SY58035U
APPLICATIONS
■Redundantclockdistribution
■AllSONET/SDHclock/datadistribution
■AllFibreChanneldistribution
■AllGigabitEthernetclockdistribution
The SY58035U is a 2.5V/3.3V precision, high-speed, 1:6
fanout capable of handling clocks up to 4.5GHz. 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 LVPECL (100K,
temperature compensated), with extremely fast rise/fall times
guaranteed to be less than 110ps.
The SY58035U 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 400mV
LVPECL outputs the SY58036U. The SY58035U 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.
FUNCTIONALBLOCKDIAGRAM
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.
Produktspecifikationer
| Varumärke: | Microchip |
| Kategori: | Inte kategoriserad |
| Modell: | SY58035U |
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