IDT82V2048E データシートの表示（PDF） - Integrated Device Technology
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IDT82V2048E Datasheet PDF : 76 Pages
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OCTAL CHANNEL T1/E1/J1 SHORT HAUL LINE INTERFACE UNIT
TABLE OF CONTENTS
INDUSTRIAL
TEMPERATURE RANGES
1 IDT82V2048E PIN CONFIGURATIONS ....................................................................................... 8
2 PIN DESCRIPTION ..................................................................................................................... 10
3 FUNCTIONAL DESCRIPTION .................................................................................................... 16
3.1 T1/E1/J1 MODE SELECTION .......................................................................................... 16
3.2 TRANSMIT PATH ............................................................................................................. 16
3.2.1 TRANSMIT PATH SYSTEM INTERFACE.............................................................. 16
3.2.2 ENCODER .............................................................................................................. 16
3.2.3 PULSE SHAPER .................................................................................................... 16
3.2.3.1 Preset Pulse Templates .......................................................................... 16
3.2.3.2 User-Programmable Arbitrary Waveform ................................................ 17
3.2.4 TRANSMIT PATH LINE INTERFACE..................................................................... 20
3.2.5 TRANSMIT PATH POWER DOWN ........................................................................ 20
3.3 RECEIVE PATH ............................................................................................................... 21
3.3.1 RECEIVE INTERNAL TERMINATION.................................................................... 21
3.3.2 LINE MONITOR ...................................................................................................... 22
3.3.3 ADAPTIVE EQUALIZER......................................................................................... 22
3.3.4 RECEIVE SENSITIVITY ......................................................................................... 22
3.3.5 DATA SLICER ........................................................................................................ 22
3.3.6 CDR (Clock & Data Recovery)................................................................................ 22
3.3.7 DECODER .............................................................................................................. 22
3.3.8 RECEIVE PATH SYSTEM INTERFACE ................................................................ 22
3.3.9 RECEIVE PATH POWER DOWN........................................................................... 22
3.3.10 G.772 NON-INTRUSIVE MONITORING ................................................................ 23
3.4 JITTER ATTENUATOR .................................................................................................... 24
3.4.1 JITTER ATTENUATION FUNCTION DESCRIPTION ............................................ 24
3.4.2 JITTER ATTENUATOR PERFORMANCE ............................................................. 24
3.5 LOS AND AIS DETECTION ............................................................................................. 25
3.5.1 LOS DETECTION ................................................................................................... 25
3.5.2 AIS DETECTION .................................................................................................... 26
3.6 TRANSMIT AND DETECT INTERNAL PATTERNS ........................................................ 27
3.6.1 TRANSMIT ALL ONES ........................................................................................... 27
3.6.2 TRANSMIT ALL ZEROS......................................................................................... 27
3.6.3 PRBS/QRSS GENERATION AND DETECTION.................................................... 27
3.7 LOOPBACK ...................................................................................................................... 27
3.7.1 ANALOG LOOPBACK ............................................................................................ 27
3.7.2 DIGITAL LOOPBACK ............................................................................................. 27
3.7.3 REMOTE LOOPBACK............................................................................................ 27
3.7.4 INBAND LOOPBACK.............................................................................................. 29
3.7.4.1 Transmit Activate/Deactivate Loopback Code......................................... 29
3.7.4.2 Receive Activate/Deactivate Loopback Code.......................................... 29
3.7.4.3 Automatic Remote Loopback .................................................................. 29
3.8 ERROR DETECTION/COUNTING AND INSERTION ...................................................... 30
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