SY89534L_08 Datasheet, PDF (1/15 Pages) Micrel Semiconductor – 3.3V, PRECISION, 33MHz to 500MHz PROGRAMMABLE LVPECL AND LVDS BUS CLOCK SYNTHESIZER

Micrel, Inc.
3.3V, PRECISION, 33MHz to 500MHz
PROGRAMMABLE LVPECL AND
LVDS BUS CLOCK SYNTHESIZER
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SY89534L
SY89535L
FEATURES
s Integrated synthesizer plus fanout buffers, clock
dividers, and translator in a single 64-pin package
s Accepts any reference input between 14MHz to
160MHz (single-ended or differential)
s 33MHz to 500MHz output frequency range
s LVPECL outputs (SY89534L)
LVPECL and LVDS outputs (SY89535L)
s 3.3V ±10% power supply
s Low jitter: <50ps cycle-to-cycle
s Low pin-to-pin skew: <50ps
s TTL/CMOS compatible control logic
s 3 independently programmable output frequency
banks:
• 9 differential output pairs @BankB (LVPECL/LVDS)
• 2 differential output pairs @BankA (LVPECL)
• 2 differential output pairs @BankC (LVPECL)
s Available in 64-pin EPAD-TQFP
Precision Edge^®
DESCRIPTION
The SY89534L and SY89535L programmable clock
synthesizers are a 3.3V, high-frequency, precision PLL-based
family optimized for multi-frequency, large clock-tree
applications that require the highest precision. These devices
integrate the following blocks into a single monolithic IC:
• PLL (Phase-Lock-Loop)-based synthesizer
• Fanout buffer
• Clock generator (divider)
• Logic translation (LVPECL, LVDS)
The SY89534L and SY89535L includes a flexible input
design that accepts any reference input; single-ended LVTTL/
CMOS, SSTL and differential LVPECL, LVDS, HSTL and
CML.
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 crystal oscillator, see the SY89532/33.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
APPLICATIONS
s Servers
s Workstations
s Parallel processor-based systems
s Other high-performance computing
s Communications
PRODUCT SELECTION GUIDE
Input
Output
Device
Crystal Reference BankA BankB BankC
SY89532L* X
LVPECL LVPECL LVPECL
SY89533L* X
LVPECL LVDS LVPECL
SY89534L
X
LVPECL LVPECL LVPECL
SY89535L
X
LVPECL LVDS LVPECL
*Refer to SY89532/33L data sheet for details.
Precision Edge is a registered trademark of Micrel, Inc.
M9999-110308
[e-mail] or [phone]
1
Rev.: E Amendment: /0
Issue Date: November 2008