SY89833AL Datasheet, PDF (1/12 Pages) Micrel Semiconductor – 3.3V Low Noise Ultra-Precision 1:4 LVDS Fanout Buffer/Translator with Internal Termination

SY89833AL
3.3V Low Noise Ultra-Precision 1:4 LVDS
Fanout Buffer/Translator with Internal
Termination
General Description
The SY89833AL is a lower noise version of the SY89833L
3.3V, high-speed 2GHz Low Voltage Differential Swing
(LVDS) 1:4 fanout buffer. Within device skew is
guaranteed to be less than 20ps over supply voltage and
temperature.
The differential input buffer has a unique internal
termination design that allows access to the termination
network through a VT pin. This feature allows the device to
easily interface to different logic standards. A VREF-AC
reference is included for AC-coupled applications.
The SY89833AL is part of Micrel’s high-speed clock
synchronization family. For 2.5V applications, the
SY89832U provides similar functionality while operating
from a 2.5V ±5% supply. For applications that require a
different I/O combination, consult the Micrel website at:
www.micrel.com, and choose from a comprehensive
product line of high-speed, low-skew fanout buffers,
translators and clock generators. Datasheets and support
documentation can be found on Micrel’s web site at:
www.micrel.com.
Functional Block Diagram
Precision Edge^®
Features
• Guaranteed AC performance over temperature
and voltage:
– DC-to > 2GHz throughput
– <470ps propagation delay (IN-to-Q)
– <20ps within-device skew
– <190ps rise/fall times
• Improved Ultra-low jitter design:
– <1ps_RMS cycle-to-cycle jitter
– <10ps_PP total jitter
– <1ps_RMS random jitter
– <10ps_PP deterministic jitter
– <0.635ps @ 156.25MHz (Integrated from 12kHz to
20MHz)
• Unique input termination and VT pin accepts DC- and
AC-coupled inputs
• High-speed LVDS outputs
• 3.3V power supply operation
• Industrial temperature range: –40°C to +85°C
• Available in 16-pin (3mm x 3mm) QFN package
Applications
• Processor clock distribution
• SONET clock distribution
• Fibre Channel clock distribution
• Gigabit Ethernet clock distribution
Precision Edge is a registered trademark of Micrel, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
March 2009
M9999-032609-A
[e-mail] or [phone]