XRT75L03 Datasheet, PDF (92/92 Pages) Exar Corporation – THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR

THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
REVISIONS
XRT75L03
REV. 1.0.4
REVISION
P1.0.2
P1.0.3
P1.0.4
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4
DATE
05/03
05/03
05/03
06/03
07/03
COMMENTS
Renamed the pins DJA and FSS. Included the Clock out and Clock enable function for the Sin-
gle Frequency Mode.
Changed the TxON pin from internal pull down to pull up.Changed the operation of TxON in
Host Mode.Included internal monitoring feature.
LOSMUT bit operation description was changed.
Final version with all the TBD filled in.
Major revisions to pin list descriptions and registers. Changes to some electrical specs.
Changed TxON pin in numerical pin list to, internally pulled "High".
In B3ZS/HDB3 Decoder section change NOTE to Dual-Rail mode. Reformat section numbers.
Change Evaluation Board Schematics in Appendix.
Update figures. Edit Features, 5V tolerant digital inputs. Edit Applications: remove De-sync.
Edit Pinlist: loopback mode table, RXA and RXB to 3.01K. Edit Interference margin test set
ups. E3 LOS condition change from 175+75 to 10 to 255 consecutive pulse periods. TXON in
registers pulled "High". TAOS section added text. Removed Evaluation Schematic.
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 2003 EXAR Corporation
Datasheet June 2003.
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
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