IDT82P2916 datasheet(3/138 Pages) IDT

Part #	IDT82P2916

Description	16-Channel High-Density T1/E1/J1 Line Interface Unit

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Manufacturer	IDT [Integrated Device Technology]

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Table of Contents

3

April 24, 2010

TABLE OF CONTENTS ........................................................................................................................................................... 3

LIST OF TABLES .................................................................................................................................................................... 6

LIST OF FIGURES ................................................................................................................................................................... 7

FEATURES............................................................................................................................................................................... 9

APPLICATIONS...................................................................................................................................................................... 10

DESCRIPTION........................................................................................................................................................................ 10

BLOCK DIAGRAM ................................................................................................................................................................. 11

1 PIN ASSIGNMENT .......................................................................................................................................................... 12

2 PIN DESCRIPTION ......................................................................................................................................................... 13

3 FUNCTIONAL DESCRIPTION ........................................................................................................................................ 22

3.1 T1 / E1 / J1 MODE SELECTION .............................................................................................................................. 22

3.2 RECEIVE PATH ....................................................................................................................................................... 22

3.2.1

Rx Termination ............................................................................................................................................ 22

3.2.1.1 Receive Differential Mode ........................................................................................................... 22

3.2.1.2 Receive Single Ended Mode ....................................................................................................... 24

3.2.2

Equalizer ..................................................................................................................................................... 25

3.2.2.1 Line Monitor ................................................................................................................................ 25

3.2.2.2 Receive Sensitivity ...................................................................................................................... 25

3.2.3

Slicer ........................................................................................................................................................... 26

3.2.4

Rx Clock & Data Recovery ......................................................................................................................... 26

3.2.5

Decoder ...................................................................................................................................................... 26

3.2.6

Receive System Interface ........................................................................................................................... 26

3.2.7

Receiver Power Down ................................................................................................................................ 27

3.3 TRANSMIT PATH .................................................................................................................................................... 27

3.3.1

Transmit System Interface .......................................................................................................................... 27

3.3.2

Tx Clock Recovery ...................................................................................................................................... 28

3.3.3

Encoder ....................................................................................................................................................... 28

3.3.4

Waveform Shaper ....................................................................................................................................... 28

3.3.4.1 Preset Waveform Template ........................................................................................................ 28

3.3.4.2 User-Programmable Arbitrary Waveform .................................................................................... 30

3.3.5

Line Driver ................................................................................................................................................... 32

3.3.5.1 Transmit Over Current Protection ............................................................................................... 32

3.3.6

Tx Termination ............................................................................................................................................ 32

3.3.6.1 Transmit Differential Mode .......................................................................................................... 32

3.3.6.2 Transmit Single Ended Mode ...................................................................................................... 33

3.3.7

Transmitter Power Down ............................................................................................................................ 34

3.3.8

Output High-Z on TTIP and TRING ............................................................................................................ 34

3.4 JITTER ATTENUATOR (RJA & TJA) ....................................................................................................................... 35

Table of Contents

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