IDT82V2081(2019) 查看數據表（PDF） - Integrated Device Technology

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IDT82V2081
(Rev.:2019)

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

Integrated Device Technology 

Table of Contents

1 IDT82V2081 Pin Configurations ................................................................................................. 8

2 Pin Description .......................................................................................................................... 10

3 Functional Description .............................................................................................................. 16

3.1 Control Mode Selection .................................................................................................... 16

3.2 T1/E1/J1 Mode Selection .................................................................................................. 16

3.3 Transmit Path ................................................................................................................... 16

3.3.1 Transmit Path System Interface.............................................................................. 16

3.3.2 Encoder.................................................................................................................. 16

3.3.3 Pulse Shaper .......................................................................................................... 16

3.3.3.1 Preset Pulse Templates .......................................................................... 16

3.3.3.2 LBO (Line Build Out) ............................................................................... 17

3.3.3.3 User-Programmable Arbitrary Waveform ................................................ 18

3.3.4 Transmit Path Line Interface................................................................................... 22

3.3.5 Transmit Path Power Down .................................................................................... 22

3.4 Receive Path .................................................................................................................... 23

3.4.1 Receive Internal Termination .................................................................................. 23

3.4.2 Line Monitor ............................................................................................................ 24

3.4.3 Adaptive Equalizer .................................................................................................. 25

3.4.4 Receive Sensitivity.................................................................................................. 25

3.4.5 Data Slicer .............................................................................................................. 25

3.4.6 CDR (Clock & Data Recovery)................................................................................ 25

3.4.7 Decoder .................................................................................................................. 25

3.4.8 Receive Path System Interface............................................................................... 26

3.4.9 Receive Path Power Down ..................................................................................... 26

3.5 Jitter Attenuator ................................................................................................................ 26

3.5.1 Jitter Attenuation Function Description ................................................................... 26

3.5.2 Jitter Attenuator Performance ................................................................................. 27

3.6 Los And AIS Detection ...................................................................................................... 27

3.6.1 LOS Detection......................................................................................................... 27

3.6.2 AIS Detection .......................................................................................................... 29

3.7 Transmit And Detect Internal Patterns .............................................................................. 31

3.7.1 Transmit All Ones ................................................................................................... 31

3.7.2 Transmit All Zeros................................................................................................... 31

3.7.3 PRBS/QRSS Generation And Detection................................................................. 31

3.8 Loopback .......................................................................................................................... 31

3.8.1 Analog Loopback .................................................................................................... 31

3.8.2 Digital Loopback ..................................................................................................... 31

Table of Contents

3

January 7, 2019

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