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SY55858UHGTR Datasheet(PDF) 1 Page - Micrel Semiconductor |
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SY55858UHGTR Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 8 page 1 SuperLite™ SY55858U Micrel, Inc. M9999-110705 hbwhelp@micrel.com or (408) 955-1690 DESCRIPTION s Guaranteed AC parameters over temperature: •f MAX > 3.0GHz (3Gbps) •t r/ tf < 120ps • Within-device skew < 25ps s Non-blocking “switch architecture” s Configurable as dual 2:1 mux, dual 1:2 fanout buffer, 1:4 fanout buffer, quad buffer, or dual 2 x 2 switch s 50 Ω compatible outputs s Unique input termination and V T pin for DC-coupled and AC-coupled input signals–CML or PECL s Fully differential inputs/outputs s TTL/CMOS compatible control logic s Wide supply voltage range: 2.3V to 3.6V s Wide operating temperature range: –40 °C to +85°C s Available in 32-pin EPAD-TQFP package 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 50 Ω compatible differential CML (current- mode 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 applications. The signal inputs (DA 0–1 and DB0–1) have a unique internal termination design that allows access to the termination network through V T pins. This feature allows the device to easily interface to other logic standards such as AC-coupled or DC-coupled PECL/LVPECL signals. For applications that require a single-channel 2 x 2 crosspoint, consider the SY55854. FEATURES 2.5V/3.3V 3.0GHZ DUAL 2 x 2 CML CROSSPOINT SWITCH W /INTERNAL TERMINATION SuperLite™ SY55858U APPLICATIONS s SONET/SDH optical transport s Backplane redundancy s Add-drop Multiplexers Rev.: D Amendment: /0 Issue Date: November 2005 SuperLite is a trademark of Micrel, Inc. SuperLite™ |
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