XRT75R12D_06 Datasheet, PDF (134/134 Pages) Exar Corporation – TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET

XRT75R12D
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER REV. 1.0.1
REVISIONS
REVISION
P1.0.0
DATE
09/22/03 Original
COMMENTS
P1.0.1
10/30/03 Added Pull-Up resistor information for RDY and INT.
1.0.0
1.0.1
April 2006
1.Added current and power consumption on Table 45, “DC Electrical Characteristics:,” on
page 126.
2. Revised Receive Monitor Enable Bit functional description and Section 3.3.1 description.
3. Updated Table 3, “The ALOS (Analog LOS) Declaration and Clearance Thresholds for a
given setting of REQEN (DS3 and STS-1 Applications),” on page 23.
4. Minor corrections on Transmitter Section of Features Summary on page 2.
5. Minor typo corrections in STS1Clk/12M pin description and in Section 1.0 and 4.4, Table 7
and Table 9.
6. Added Table 2, “Reference Clock Performance Specifications,” on page 19.
12/07/06 Corrected package thermal resistance specification.
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 2006 EXAR Corporation
Datasheet December 2006.
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
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