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DS40MB200SQ Datasheet

  • DS40MB200SQ

  • Dual 4 Gb/s 1:2 Mux/Buffer with Onput Wqualization and Outpu...

  • 14頁(yè)

  • NSC

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DS40MB200 Dual 4 Gb/s 1:2 Mux/Buffer with Input Equalization and Output Pre-Emphasis
August 2005
DS40MB200
Dual 4 Gb/s 1:2 Mux/Buffer with Input Equalization and
Output Pre-Emphasis
General Description
The DS40MB200 is a dual signal conditioning 2:1 multi-
plexer and 1:2 fan-out buffer designed for use in backplane
redundancy applications. Signal conditioning features in-
clude input equalization and programmable output pre-
emphasis that enable data communication in FR4 back-
planes up to 4 Gb/s. Each input stage has a fixed equalizer
to reduce ISI distortion from board traces. All output drivers
have 4 selectable steps of pre-emphasis to compensate for
transmission losses from long FR4 backplanes and reduce
deterministic jitter. The pre-emphasis levels can be indepen-
dently controlled for the line-side and switch-side drivers.
The internal loopback paths from switch-side input to switch-
side output enable at-speed system testing. All receiver
inputs and driver outputs are internally terminated with 100鈩?/div>
differential terminating resistors
Features
Dual 2:1 multiplexer and 1:2 buffer
1鈥?4 Gbps fully differential data paths
Fixed input equalization
Programmable output pre-emphasis
Independent switch and line side pre-emphasis controls
Programmable switch-side loopback mode
On-chip terminations
+3.3V supply
Low power, 1W max
Lead-less LLP-48 package (7mmx7mmx0.8mm, 0.5mm
pitch)
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0藲C to +85藲C operating temperature range
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Functional Block Diagram
20021733
漏 2005 National Semiconductor Corporation
DS200217
www.national.com

DS40MB200SQ 產(chǎn)品屬性

  • National Semiconductor (TI)

  • Reel

  • 250

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