SY89532L_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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SY89532L
SY89533L
FEATURES
Integrated synthesizer plus fanout buffers, clock
drivers , and translator in a single 64-pin package
3.3V ±10% power supply
Low jitter: <50ps cycle-to-cycle
Low pin-to-pin skew: <50ps
33MHz to 500MHz output frequency range
Direct interface to crystal: 14MHz to 18MHz
LVPECL output (SY89532L),
LVPECL/LVDS outputs (SY89533L)
TTL/CMOS compatible control logic
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)
ExtVCO input allows synthesizer and crystal
interface to be bypassed
Available in 64-pin EPAD-TQFP
Precision Edge^®
DESCRIPTION
The SY89532 and SY89533L programmable clock
synthesizer/drivers are a 3.3V, high-frequency, precision PLL-
based clock driver family optimized for multi-frequency, multi-
processor server and synchronous computing applications
that require the highest precision. These devices integrate the
following blocks into a single monolithic IC:
• PLL (Phase-Lock-Loop)-based synthesizer
• Fanout buffers
• Clock generator (dividers)
• Logic translation (LVPECL, LVDS)
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 SY89534/5.
APPLICATIONS
Servers
Workstations
Parallel processor-based systems
Other high-performance computing
Communications
PRODUCT SELECTION GUIDE
Input
Output
Device
Crystal Reference BankA BankB BankC
SY89532L
X
LVPECL LVPECL LVPECL
SY89533L
X
SY89534L⁽¹⁾
SY89535L⁽¹⁾
LVPECL LVDS LVPECL
X LVPECL LVPECL LVPECL
X LVPECL LVDS LVPECL
Note:
1.Refer to SY89534/35L data sheet for details.
Precision Edge is a registered trademark of Micrel, Inc.
M9999-010808
[e-mail] or [phone]
1
Rev.: F Amendment: /0
Issue Date: January 2008