XRT91L81 查看數據表（PDF） - Exar Corporation
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XRT91L81 Datasheet PDF : 40 Pages
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XRT91L81
PRELIMINARY
2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
REV. P1.0.3
REVISION HISTORY
REVISION #
A1.0.1
A1.0.2
A1.0.3
A1.0.4
P1.0.0
P1.0.1
P1.0.2
P1.0.3
DATE
DESCRIPTION
July 2002 1st release of the XRT91L81 product brief
September 2002 Revisions to the product feature set, device architecture and pin descriptions.
October 2002 Added pin numbers to pin list, package outline and added REXT pin to block dia-
gram.
December 2002 Revised General Description, Applications and Features.
April 2003 New block diagram and revised pin list (pins A4, B4 and B11 changed from NC to
DGND).
May 2003 Changed technical content and re-arranged sections
October 2003 Revised general description in the Transmit and Receive sections. Re-arranged
sections. Added electrical specifications.
January 2004 Corrected a typo in the Device ID register.
NOTICE
EXAR Corporation reserves the right to make changes to the products contained in this publication in order
to improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of
any circuits described herein, conveys no license under any patent or other right, and makes no
representation that the circuits are free of patent infringement. Charts and schedules contained here in are
only for illustration purposes and may vary depending upon a user’s specific application. While the
information in this publication has been carefully checked; no responsibility, however, is assumed for
inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where
the failure or malfunction of the product can reasonably be expected to cause failure of the life support
system or to significantly affect its safety or effectiveness. Products are not authorized for use in such
applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of
injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR
Corporation is adequately protected under the circumstances.
Copyright 2004 EXAR Corporation
Datasheet January 2004.
38
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