Table of Contents
TABLE OF CONTENTS ........................................................................................................................................................... 3
LIST OF TABLES .................................................................................................................................................................... 7
LIST OF FIGURES ................................................................................................................................................................... 8
FEATURES............................................................................................................................................................................. 10
APPLICATIONS...................................................................................................................................................................... 11
DESCRIPTION........................................................................................................................................................................ 11
BLOCK DIAGRAM ................................................................................................................................................................. 12
1 PIN ASSIGNMENT .......................................................................................................................................................... 13
2 PIN DESCRIPTION ......................................................................................................................................................... 14
3 FUNCTIONAL DESCRIPTION ........................................................................................................................................ 24
3.1 T1 / E1 / J1 MODE SELECTION .............................................................................................................................. 24
3.2 RECEIVE PATH ....................................................................................................................................................... 24
3.2.1 Rx Termination ............................................................................................................................................ 24
3.2.1.1 Receive Differential Mode ........................................................................................................... 24
3.2.1.2 Receive Single Ended Mode ....................................................................................................... 26
3.2.2 Equalizer ..................................................................................................................................................... 27
3.2.2.1 Line Monitor ................................................................................................................................ 27
3.2.2.2 Receive Sensitivity ...................................................................................................................... 27
3.2.3 Slicer ........................................................................................................................................................... 28
3.2.4 Rx Clock & Data Recovery ......................................................................................................................... 28
3.2.5 Decoder ...................................................................................................................................................... 28
3.2.6 Receive System Interface ........................................................................................................................... 28
3.2.7 Receiver Power Down ................................................................................................................................ 29
3.3 TRANSMIT PATH .................................................................................................................................................... 29
3.3.1 Transmit System Interface .......................................................................................................................... 29
3.3.2 Tx Clock Recovery ...................................................................................................................................... 30
3.3.3 Encoder ....................................................................................................................................................... 30
3.3.4 Waveform Shaper ....................................................................................................................................... 30
3.3.4.1 Preset Waveform Template ........................................................................................................ 30
3.3.4.2 User-Programmable Arbitrary Waveform .................................................................................... 32
3.3.5 Line Driver ................................................................................................................................................... 34
3.3.5.1 Transmit Over Current Protection ............................................................................................... 34
3.3.6 Tx Termination ............................................................................................................................................ 34
3.3.6.1 Transmit Differential Mode .......................................................................................................... 34
3.3.6.2 Transmit Single Ended Mode ...................................................................................................... 35
3.3.7 Transmitter Power Down ............................................................................................................................ 36
3.3.8 Output High-Z on TTIP and TRING ............................................................................................................ 36
3.4 JITTER ATTENUATOR (RJA & TJA) ....................................................................................................................... 37
Table of Contents
3
January 11, 2007
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