IDT82V2082 Просмотр технического описания (PDF) - Integrated Device Technology

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IDT82V2082

DUAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT

Integrated Device Technology 

Table of Contents

1 IDT82V2082 PIN CONFIGURATIONS .......................................................................................... 9

2 PIN DESCRIPTION ..................................................................................................................... 11

3 FUNCTIONAL DESCRIPTION .................................................................................................... 19

3.1 CONTROL MODE SELECTION ....................................................................................... 19

3.2 T1/E1/J1 MODE SELECTION .......................................................................................... 19

3.3 TRANSMIT PATH ............................................................................................................. 19

3.3.1 TRANSMIT PATH SYSTEM INTERFACE.............................................................. 19

3.3.2 ENCODER .............................................................................................................. 19

3.3.3 PULSE SHAPER .................................................................................................... 19

3.3.3.1 Preset Pulse Templates .......................................................................... 19

3.3.3.2 LBO (Line Build Out) ............................................................................... 20

3.3.3.3 User-Programmable Arbitrary Waveform ................................................ 21

3.3.4 TRANSMIT PATH LINE INTERFACE..................................................................... 25

3.3.5 TRANSMIT PATH POWER DOWN ........................................................................ 26

3.4 RECEIVE PATH ............................................................................................................... 26

3.4.1 RECEIVE INTERNAL TERMINATION.................................................................... 26

3.4.2 LINE MONITOR ...................................................................................................... 27

3.4.3 ADAPTIVE EQUALIZER......................................................................................... 28

3.4.4 RECEIVE SENSITIVITY ......................................................................................... 28

3.4.5 DATA SLICER ........................................................................................................ 28

3.4.6 CDR (Clock & Data Recovery)................................................................................ 28

3.4.7 DECODER .............................................................................................................. 28

3.4.8 RECEIVE PATH SYSTEM INTERFACE ................................................................ 28

3.4.9 RECEIVE PATH POWER DOWN........................................................................... 28

3.4.10 G.772 NON-INTRUSIVE MONITORING ................................................................ 29

3.5 JITTER ATTENUATOR .................................................................................................... 30

3.5.1 JITTER ATTENUATION FUNCTION DESCRIPTION ............................................ 30

3.5.2 JITTER ATTENUATOR PERFORMANCE ............................................................. 30

3.6 LOS AND AIS DETECTION ............................................................................................. 31

3.6.1 LOS DETECTION ................................................................................................... 31

3.6.2 AIS DETECTION .................................................................................................... 34

3.7 TRANSMIT AND DETECT INTERNAL PATTERNS ........................................................ 35

3.7.1 TRANSMIT ALL ONES ........................................................................................... 35

3.7.2 TRANSMIT ALL ZEROS......................................................................................... 35

3.7.3 PRBS/QRSS GENERATION AND DETECTION.................................................... 35

3.8 LOOPBACK ...................................................................................................................... 35

3.8.1 ANALOG LOOPBACK ............................................................................................ 35

Table of Contents

3

May 4, 2009

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