DatasheetsPDF.com

DS25BR400

Part Number	DS25BR400
Manufacturer	National Semiconductor
Description	Quad Transceiver
Published	Jun 1, 2007
Detailed Description	DS25BR400 Quad Transceiver with Input Equalization and Output De-Emphasis May 2006 DS25BR400 Quad Transceiver with Inp...
Datasheet	DS25BR400 PDF File

Overview

DS25BR400 Quad Transceiver with Input Equalization and Output De-Emphasis May 2006 DS25BR400 Quad Transceiver with Input Equalization and Output De-Emphasis General Description The DS25BR400 is a quad 250 Mbps – 2.
5 Gbps CML transceiver, or 8-channel buffer, for use in XAUI Fibre Channel backplane and cable applications.
With operation down to 250 Mbps, the DS25BR400 can be used in applications requiring both low and high frequency data rates.
Each input stage has a fixed equalizer to reduce ISI distortion from board traces.
The equalizers are grouped in fours and are enabled through two control pins.
These control pins provide customers flexibility in XAUI applications where ISI distortion may vary from one direction to another.
All output drivers have four selectable steps of de-emphasis to compensate against transmission loss across long FR4 backplanes.
The de-emphasis blocks are also grouped in fours.
In addition, the DS25BR400 also has loopback control capability on four channels.
All CML drivers and receivers are internally terminated with 50Ω pull-up resistors.
Features n Quad 2.
5 Gbps Transceiver or 8-Channel CML Serial Buffer n 250 Mbps – 2.
5 Gbps Fully Differential Data Paths n Optional Fixed Input Equalization n Selectable Output De-emphasis n Individual Loopback Controls n On-chip Termination n +3.
3V supply n Low Power, 1.
3 Watts MAX n Lead-less eLLP-60 pin package (9mmx9mmx0.
8mm, 0.
4mm pitch) n −40˚C to +85˚C Industrial Temperature Range n 6 kV ESD Rating, HBM Functional Block Diagram 20194201 © 2006 National Semiconductor Corporation DS201942 www.
national.
com DS25BR400 Connection Diagram 20194202 Leadless eLLP-60 Pin Package (9mmx9mmx0.
8mm, 0.
4mm pitch) Order number DS25BR400TSQ See NS Package Number SQA060 www.
national.
com 2 DS25BR400 Pin Descriptions Pin Name Pin Number 51 52 48 49 43 42 40 39 33 34 36 37 25 24 28 27 58 57 55 54 6 7 3 4 10 9 13 12 18 19 21 28 60 I/O Description DIFFERENTIAL I/O IB_0+ IB_0− OA_0+ OA_0− IB_1+ IB_1− OA_...

Similar Datasheet

DS25BR400 DS25BR400 Quad 2.5Gbps CML Transceiver w/Transmit De-Emphas Receive Equal (Rev. I) - ETCTI
DS25BR400 Quad Transceiver - National Semiconductor
DS25BR440 3.125 Gbps Quad LVDS Buffer w/ Transmit Pre-Emphasis and Receive Equalization (Rev. B) - ETCTI

@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)