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IDT82P2282PF

Dual T1/E1/J1 Long Haul / Short Haul Transceiver

Integrated Device Technology 

Table of Contents

FEATURES ............................................................................................................................................................................ 12

APPLICATIONS..................................................................................................................................................................... 12

BLOCK DIAGRAM ................................................................................................................................................................ 13

1 PIN ASSIGNMENT ........................................................................................................................................................... 14

2 PIN DESCRIPTION .......................................................................................................................................................... 15

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

3.1 T1 / E1 / J1 MODE SELECTION ................................................................................................................................................................... 24

3.2 RECEIVER IMPEDANCE MATCHING .......................................................................................................................................................... 25

3.2.1 Line Monitor .................................................................................................................................................................................... 25

3.3 ADAPTIVE EQUALIZER ............................................................................................................................................................................... 28

3.4 DATA SLICER ............................................................................................................................................................................................... 28

3.5 CLOCK AND DATA RECOVERY ................................................................................................................................................................. 28

3.6 RECEIVE JITTER ATTENUATOR ................................................................................................................................................................ 29

3.7 DECODER ..................................................................................................................................................................................................... 30

3.7.1 Line Code Rule ............................................................................................................................................................................... 30

3.7.1.1 T1 / J1 Mode .................................................................................................................................................................... 30

3.7.1.2 E1 Mode ........................................................................................................................................................................... 30

3.7.2 Decode Error Detection ................................................................................................................................................................. 30

3.7.2.1 T1 / J1 Mode .................................................................................................................................................................... 30

3.7.2.2 E1 Mode ........................................................................................................................................................................... 30

3.7.3 LOS Detection ................................................................................................................................................................................ 31

3.8 FRAME PROCESSOR .................................................................................................................................................................................. 34

3.8.1 T1/J1 Mode ...................................................................................................................................................................................... 34

3.8.1.1 Synchronization Searching ............................................................................................................................................... 34

3.8.1.1.1 Super Frame (SF) Format ............................................................................................................................. 34

3.8.1.1.2 Extended Super Frame (ESF) Format ........................................................................................................... 35

3.8.1.1.3 T1 Digital Multiplexer (DM) Format (T1 only) ................................................................................................ 36

3.8.1.1.4 Switch Line Carrier - 96 (SLC-96) Format (T1 only) ...................................................................................... 37

3.8.1.2 Error Event And Out Of Synchronization Detection .......................................................................................................... 38

3.8.1.2.1 Super Frame (SF) Format ............................................................................................................................. 38

3.8.1.2.2 Extended Super Frame (ESF) Format ........................................................................................................... 38

3.8.1.2.3 T1 Digital Multiplexer (DM) Format (T1 only) ................................................................................................ 38

3.8.1.2.4 Switch Line Carrier - 96 (SLC-96) Format (T1 only) ...................................................................................... 38

3.8.1.3 Overhead Extraction (T1 Mode SLC-96 Format Only) ..................................................................................................... 39

3.8.1.4 Interrupt Summary ............................................................................................................................................................ 39

3.8.2 E1 Mode .......................................................................................................................................................................................... 41

3.8.2.1 Synchronization Searching ............................................................................................................................................... 43

3.8.2.1.1 Basic Frame .................................................................................................................................................. 43

3.8.2.1.2 CRC Multi-Frame ........................................................................................................................................... 44

3.8.2.1.3 CAS Signaling Multi-Frame ........................................................................................................................... 45

3.8.2.2 Error Event And Out Of Synchronization Detection .......................................................................................................... 45

3.8.2.2.1 Out Of Basic Frame Synchronization ............................................................................................................ 46

3.8.2.2.2 Out Of CRC Multi-Frame Synchronization .................................................................................................... 46

3.8.2.2.3 Out Of CAS Signaling Multi-Frame Synchronization ..................................................................................... 46

3.8.2.3 Overhead Extraction ......................................................................................................................................................... 46

3.8.2.3.1 International Bit Extraction ............................................................................................................................. 46

3.8.2.3.2 Remote Alarm Indication Bit Extraction ......................................................................................................... 46

Table of Contents

3

August 20, 2009

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