XRT73L04A Datasheet, PDF (65/65 Pages) Exar Corporation – 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT

XRT73L04A
REVISION HISTORY
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 2.0.3
REV #
DATE
CHANGES MADE
2.0.0
December 2001 Original XRT73L04A. Redesigned 73L04 with improved performance and added
timing recovery circuit. Added typical E3 Jitter tolerance @800kHz. Receiver
Sensitivity (cable length) increased. Updated Transformer Recommendations.
2.0.1 February 2002 Added connection points to various drawings.
2.0.2
August 2002 Encoder/Decoder disable changed from “0” to “1” on page 31.
Changed .......”assert the CS pin at least 5ns” (from 50ns) on page 57.
2.0.3 October 2003 Changed the default register setting for REQEN_(n) in CR2.
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 represen-
tation 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 sys-
tem or to significantly affect its safety or effectiveness. Products are not authorized for use in such applica-
tions 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 Corpo-
ration is adequately protected under the circumstances.
Copyright 2003 EXAR Corporation
Datasheet October 2003.
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
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