SY89311U 2.5V/3.3V/5V 1:2 Differential PECL/LVPECL/ECL Fanout Buffer0 pages

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Precision Edge®
Micrel, Inc. SY89311U
M9999-092606
hbwhelp@micrel.com or (408) 955-1690
DESCRIPTION
¡ 2.5V, 3.3V and 5V power supply
¡ Guaranteed AC parameters over temperature:
• fMAX > 3.0GHz
• <20ps output-to-output skew
• <200ps tr / tf
• <300ps propagation delay
¡ 100K compatible I/O
¡ Wide temperature range: –40°C to +85°C
¡ Available in ultra-small 8-pin MLF®
(2mm × 2mm) package
FEATURES
Precision Edge®
SY89311U
Rev.: D Amendment: /0
Issue Date: September 2006
The SY89311U is a precision, high-speed 1:2 differential
fanout buffer. Having within-device skews and output
transition times significantly improved over the EL11V, the
SY89311U is ideally suited for those applications which
require the ultimate in AC performance in a small package.
The differential inputs of the SY89311U employ clamping
circuitry to maintain stability under open input conditions. If
the inputs are left open, the Q outputs will be LOW.
The differential inputs can accept 10/100K ECL/PECL
signals (external termination required) and the outputs are
100K ECL/PECL compatible.
Precision Edge®
Precision Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
2.5V/3.3V/5V 1:2 DIFFERENTIAL
PECL/LVPECL/ECL FANOUT BUFFER
BLOCK DIAGRAM
Q0
/Q0
Q1
/Q1
IN
PECL /IN PECL