Micrel, Inc. 2.5V/3.3V 3.0GHZ DUAL 2 x 2 CML
CROSSPOINT SWITCH
W/INTERNAL TERMINATION SuperLiteв„ў
SY55858U SuperLiteв„ў
SY55858U FEATURES
в– Guaranteed AC parameters over temperature: fMAX > 3.0GHz (3Gbps) tr/ tf < 120ps Within-device skew < 25ps
■Non-blocking “switch architecture”
в– Configurable as dual 2:1 mux, dual 1:2 fanout buffer,
1:4 fanout buffer, quad buffer, or dual 2 x 2 switch
■50Ω compatible outputs
в– Unique input termination and VT pin for DC-coupled
and AC-coupled input signals–CML or PECL
в– Fully differential inputs/outputs
в– TTL/CMOS compatible control logic
в– Wide supply voltage range: 2.3V to 3.6V
■Wide operating temperature range: –40°C to +85°C
в– Available in 32-pin EPAD-TQFP package SuperLiteв„ў DESCRIPTION
The SY55858U is a low-voltage, high-speed dual 2 x 2
crosspoint switch with a flexible input that accepts CML
or PECL, and a 50Ω compatible differential CML (currentmode logic) output. The non-blocking design allows any
input to connect to any output. Varying the state of the
select inputs allows SY55858U to be used in backup,
fault tolerant, protection and backplane distribution …