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XRT73L02MIV Datasheet(PDF) 5 Page - Exar Corporation

Part # XRT73L02MIV
Description  TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT73L02MIV Datasheet(HTML) 5 Page - Exar Corporation

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XRT73L02M
TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.0.0
V
Figure 17. Interference Margin Test Set up for DS3/STS-1 ........................................................................... 32
Figure 18. Interference Margin Test Set up for E3. ........................................................................................ 32
TABLE 9: INTERFERENCE MARGIN TEST RESULTS .............................................................................................. 32
5.0.2 Clock and Data Recovery: ................................................................................................................. 33
5.0.3 B3ZS/HDB3 Decoder: ........................................................................................................................ 33
5.0.4 LOS (Loss of Signal) Detector: ......................................................................................................... 34
DISABLING ALOS/DLOS DETECTION: ......................................................................................................... 34
TABLE 10: THE ALOS (ANALOG LOS) DECLARATION AND CLEARANCE THRESHOLDS FOR A GIVEN SETTING OF
LOSTHR AND REQEN (DS3 AND STS-1 APPLICATIONS) ................................................................... 34
Figure 19. Loss Of Signal Definition for E3 as per ITU-T G.775 .................................................................... 35
Figure 20. Loss of Signal Definition for E3 as per ITU-T G.775. .................................................................... 35
6.0 Jitter: ................................................................................................................................................. 36
6.0.1 Jitter Tolerance - Receiver: ............................................................................................................... 36
Figure 21. Jitter Tolerance Measurements ..................................................................................................... 36
Figure 22. Input Jitter Tolerance For DS3/STS-1 .......................................................................................... 37
Figure 23. Input Jitter Tolerance for E3 ......................................................................................................... 37
6.0.2 Jitter Transfer - Receiver/Transmitter: ............................................................................................. 38
TABLE 11: JITTER AMPLITUDE VERSUS MODULATION FREQUENCY (JITTER TOLERANCE) ..................................... 38
TABLE 12: JITTER TRANSFER SPECIFICATION/REFERENCES ............................................................................... 38
TABLE 13: JITTER TRANSFER PASS MASKS ....................................................................................................... 39
Figure 24. Jitter Transfer Requirements and Jitter Attenuator Performance .................................................. 39
6.1.1 Jitter Generation: ............................................................................................................................... 40
7.0 Serial Host interface: ....................................................................................................................... 40
TABLE 14: FUNCTIONS OF SHARED PINS ............................................................................................................ 40
TABLE 15: REGISTER MAP AND BIT NAMES ....................................................................................................... 40
TABLE 16: REGISTER MAP DESCRIPTION - GLOBAL ............................................................................................ 41
TABLE 17: REGISTER MAP AND BIT NAMES - CHANNEL 0 REGISTERS ................................................................. 42
TABLE 18: REGISTER MAP AND BIT NAMES - CHANNEL 1 REGISTERS ................................................................. 42
TABLE 20: REGISTER MAP DESCRIPTION ........................................................................................................... 43
8.0 Diagnostic Features: ........................................................................................................................ 47
8.1 PRBS GENERATOR AND DETECTOR: ................................................................................................................ 47
8.2 LOOPBACKS: ............................................................................................................................................... 48
8.2.1 ANALOG LOOPBACK: ....................................................................................................................... 48
Figure 25. PRBS MODE ................................................................................................................................. 48
8.2.2 DIGITAL LOOPBACK: ........................................................................................................................ 49
Figure 26. Analog Loopback ........................................................................................................................... 49
8.2.3 REMOTE LOOPBACK: ....................................................................................................................... 50
Figure 27. Digital Loopback ............................................................................................................................ 50
8.3 TRANSMIT ALL ONES (TAOS): ................................................................................................................... 51
Figure 28. Remote Loopback ......................................................................................................................... 51
Figure 29. Transmit All Ones (TAOS) ............................................................................................................. 51
APPENDIX ......................................................................................................................... 52
Figure 30. EVALUATION BOARD SCHEMATICS ......................................................................................... 52
Figure 31. Evaluation Board Schematics ....................................................................................................... 53
ORDERING INFORMATION ................................................................................................................ 54
PACKAGE DIMENSIONS - 14X20 MM, 100PIN PACKAGE ................................................................................ 54
REVISIONS ................................................................................................................................................. 55


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