T7630 datasheet(2/210 Pages) AGERE

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Table of Contents

Contents

Page

Preliminary Data Sheet

T7630 Dual T1/E1 5.0 V Short-Haul Terminator (Terminator-II)

October 2000

Lucent Technologies Inc.

Features ................................................................................................................................................................... 1

T1/E1 Line Interface Features............................................................................................................................... 1

Power Requirements and Package....................................................................................................................... 1

T1/E1 Framer Features ......................................................................................................................................... 1

Facility Data Link Features.................................................................................................................................... 1

Microprocessor Interface....................................................................................................................................... 1

Applications ........................................................................................................................................................... 1

Feature Descriptions .............................................................................................................................................. 12

T1/E1 Line Interface Features............................................................................................................................. 12

T1/E1 Framer Features ....................................................................................................................................... 12

Facility Data Link Features.................................................................................................................................. 13

User-Programmable Microprocessor Interface ................................................................................................... 13

Functional Description ............................................................................................................................................ 14

Pin Information ....................................................................................................................................................... 18

Line Interface Unit: Block Diagram ......................................................................................................................... 25

Line Interface Unit: Receive ................................................................................................................................... 25

Data Recovery..................................................................................................................................................... 25

Jitter Accommodation and Jitter Transfer Without the Jitter Attenuator .............................................................. 26

Receive Line Interface Configuration Modes ...................................................................................................... 26

Line Interface Unit: Transmit .................................................................................................................................. 32

Output Pulse Generation..................................................................................................................................... 32

LIU Transmitter Configuration Modes ................................................................................................................. 33

LIU Transmitter Alarms ....................................................................................................................................... 33

DSX-1 Transmitter Pulse Template and Specifications ...................................................................................... 34

CEPT Transmitter Pulse Template and Specifications ....................................................................................... 36

Line Interface Unit: Jitter Attenuator ....................................................................................................................... 37

Generated (Intrinsic) Jitter................................................................................................................................... 37

Jitter Transfer Function ....................................................................................................................................... 37

Jitter Accommodation.......................................................................................................................................... 38

Jitter Attenuator Enable (Transmit or Receive Path)........................................................................................... 38

Line Interface Unit: Loopbacks ............................................................................................................................... 41

Full Local Loopback (FLLOOP)........................................................................................................................... 41

Remote Loopback (RLOOP) ............................................................................................................................... 41

Digital Local Loopback (DLLOOP) ...................................................................................................................... 41

Line Interface Unit: Other Features ........................................................................................................................ 41

LIU Powerdown (PWRDN) .................................................................................................................................. 41

Loss of Framer Receive Line Clock (LOFRMRLCK Pin)..................................................................................... 41

In-Circuit Testing and Driver High-Impedance State (3-STATE)......................................................................... 41

LIU Delay Values................................................................................................................................................. 42

SYSCK Reference Clock........................................................................................................................................ 42

Line Interface Unit: Line Interface Networks........................................................................................................... 43

LIU-Framer Interface .............................................................................................................................................. 46

LIU-Framer Physical Interface............................................................................................................................. 46

Interface Mode and Line Encoding...................................................................................................................... 47

DS1: Alternate Mark Inversion (AMI)................................................................................................................... 48

DS1: Zero Code Suppression (ZCS)................................................................................................................... 48

CEPT: High-Density Bipolar of Order 3 (HDB3).................................................................................................. 49

Frame Formats ....................................................................................................................................................... 49

T1 Framing Structures......................................................................................................................................... 49

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