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SY89531L Datasheet(PDF) 1 Page - Micrel Semiconductor

No. de Pieza. SY89531L
Descripción  3.3V, PRECISION, 33MHz to 500MHz PROGRAMMABLE LVPECL AND HSTL BUS CLOCK SYNTHESIZER
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Fabricante  MICREL [Micrel Semiconductor]
Página de inicio  http://www.micrel.com
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SY89531L Datasheet(HTML) 1 Page - Micrel Semiconductor

 
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Precision Edge®
SY89531L
Micrel, Inc.
M9999-110405
hbwhelp@micrel.com or (408) 955-1690
DESCRIPTION
s Integrated synthesizer plus fanout buffers, clock
drivers, and translator in a single 64-pin package
s 3.3V
±10% power supply
s Low jitter: <50ps cycle-to-cycle
s Low pin-to-pin skew: <50ps
s 33MHz to 500MHz output frequency range
s Direct interface to crystal: 14MHz to 18MHz
s LVPECL/HSTL outputs
s TTL/CMOS compatible control logic
s 3 independently programmable output frequency
banks:
• 9 differential output pairs @BankB (HSTL)
• 2 differential output pairs @BankA (LVPECL)
• 2 differential output pairs @BankC (LVPECL)
s ExtVCO input allows synthesizer and crystal
interface to be bypassed
s Available in 64-pin EPAD-TQFP
FEATURES
3.3V, PRECISION, 33MHz to 500MHz
PROGRAMMABLE LVPECL AND HSTL BUS
CLOCK SYNTHESIZER
Precision Edge®
SY89531L
APPLICATIONS
s Servers
s Workstations
s Parallel processor-based systems
s Other high-performance computing
s Communications
Rev.: B
Amendment: /0
Issue Date:
October 2005
The SY89531L programmable clock synthesizer/driver is
part of a 3.3V, high-frequency, precision PLL-based clock
synthesizer family optimized for multi-frequency, multi-
processor server, enterprise networking and other computing
applications that require the highest precision and integration.
The device integrates the following blocks into a single
monolithic IC:
• PLL (Phase-Lock-Loop)-based synthesizer
• Fanout buffers
• Clock generator (dividers)
• Logic translation (LVPECL, HSTL)
This level of integration minimizes the additive jitter and
part-to-part skew associated with the discrete alternative,
resulting in superior system-level timing as well as reduced
board space and power. For applications that must interface
to a reference clock, see the SY89536L.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
PRODUCT SELECTION GUIDE
Input
Output
Device
Crystal
Reference
BankA
BankB
BankC
SY89531L
X
LVPECL
HSTL
LVPECL
SY89532L*
X
LVPECL LVPECL LVPECL
SY89533L*
X
LVPECL
LVDS
LVPECL
SY89534L*
X
LVPECL LVPECL LVPECL
SY89535L*
X
LVPECL
LVDS
LVPECL
SY89536L*
X
LVPECL
HSTL
LVPECL
*Refer to individual data sheet for details.
Precision Edge®
Precision Edge is a registered trademark of Micrel, Inc.


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