SY89833L Datasheet, PDF (1/10 Pages) Micrel Semiconductor – 3.3V, 2GHz ANY-DIFFERENTIAL INPUT-TO-LVDS 1:4 FANOUT BUFFER/TRANSLATOR W/ INTERNAL TERMINATION

3.3V, 2GHz ANY-DIFFERENTIAL
INPUT-TO-LVDS 1:4 FANOUT BUFFER/ ^{Precision Edge™}
TRANSLATOR W/ INTERNAL TERMINATION ^SY89833L
FEATURES
s Accepts any differential input signal and provides
four LVDS output copies
s Guaranteed AC performance over temperature
and voltage:
• > 2.0GHz f_MAX
• < 20ps within-device skew
• < 190ps rise/fall times
s Low jitter design
• < 1ps(rms) cycle-to-cycle jitter
• < 10ps(pk-pk) total jitter
s 3.3V power supply operation
s TTL/CMOS input for enable
s Unique input termination and V_T pin accepts DC-
coupled and AC-coupled inputs (CML, PECL, LVDS,
and HSTL)
s High-speed LVDS outputs
s Wide operating temperature range: –40°C to +85°C
s Available in 16-pin (3mm × 3mm) MLF™ package
APPLICATIONS
s Processor clock distribution
s SONET clock distribution
s Fibre Channel clock distribution
s Gigabit Ethernet clock distribution
Precision Edge™
DESCRIPTION
The SY89833L is a 3.3V, high-speed 2GHz differential
Low Voltage Differential Swing (LVDS) 1:4 fanout buffer
optimized for ultra-low skew applications. 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 V_T pin. This feature allows the device to
easily interface to different logic standards. A V_{REF_AC}
reference is included for AC-coupled applications.
The SY89833L 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.
FUNCTIONAL BLOCK DIAGRAM
TYPICAL PERFORMANCE
Q0
/Q0
Q1
IN
/Q1
50Ω
V_T
50Ω
/IN
Q2
/Q2
EN
DQ
V_REF—AC
Q3
/Q3
Precision Edge is a trademark of Micrel, Inc.
MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
1
622MHz Output
TIME (321.9ps/div.)
Rev.: D Amendment: /0
Issue Date: February 2003