XRT7302IQ80 View Datasheet(PDF) - Exar Corporation
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Description
MFG CO.
'XRT7302IQ80' PDF : 77 Pages View PDF
XRT7302 2 CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
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REV. 1.1.0
Design Guideline for Setting the Transmit Line Build-Out Circuit ................................................ 36
COMMAND REGISTER, CR9 (ADDRESS = 0X09) ............................................................ 36
COMMAND REGISTER, CR1 (ADDRESS = 0X01) ............................................................ 36
COMMAND REGISTER, CR9 (ADDRESS = 0X09) ............................................................ 36
The Transmit Line Build-Out Circuit and E3 Applications ............................................................ 36
2.5 INTERFACING THE TRANSMIT SECTIONS OF THE XRT7302 DEVICE TO THE LINE ............................... 36
TRANSFORMER VENDOR INFORMATION ........................................................................................... 37
3.0 THE RECEIVE SECTION ................................................................................................................... 38
3.1 INTERFACING THE RECEIVE SECTIONS OF THE XRT7302 DEVICE TO THE LINE ................................. 38
TRANSFORMER VENDOR INFORMATION ........................................................................................... 39
3.2 THE RECEIVE EQUALIZER BLOCK .................................................................................................... 40
COMMAND REGISTER CR2 (ADDRESS = 0X02) ............................................................. 41
COMMAND REGISTER CR10 (ADDRESS = 0X0A) ........................................................... 41
3.3 PEAK DETECTOR AND SLICER ......................................................................................................... 41
3.4 CLOCK RECOVERY PLL .................................................................................................................. 41
3.5 THE HDB3/B3ZS DECODER .......................................................................................................... 42
B3ZS Decoding (DS3/STS-1 Applications) ................................................................................. 42
HDB3 Decoding (E3 Applications) ............................................................................................... 42
Configuring the HDB3/B3ZS Decoder ......................................................................................... 43
COMMAND REGISTER CR2 (ADDRESS = 0X02) ............................................................. 43
COMMAND REGISTER CR10 (ADDRESS = 0X0A) ........................................................... 43
3.6 LOS DECLARATION/CLEARANCE ..................................................................................................... 43
The LOS Declaration/Clearance Criteria for E3 Applications ...................................................... 44
The LOS Declaration/Clearance Criteria for DS3 and STS-1 Applications ................................. 45
COMMAND REGISTER 0, (ADDRESS = 0X00) ................................................................. 46
COMMAND REGISTER 8, (ADDRESS = 0X08) ................................................................. 46
COMMAND REGISTER CR2 (ADDRESS = 0X02) ............................................................. 46
COMMAND REGISTER CR10 (ADDRESS = 0X0A) ........................................................... 46
COMMAND REGISTER CR0, (ADDRESS = 0X00) ............................................................ 47
COMMAND REGISTER CR8, (ADDRESS = 0X08) ............................................................ 47
COMMAND REGISTER CR2 (ADDRESS = 0X02 ............................................................... 47
COMMAND REGISTER CR10 (ADDRESS = 0X0A ............................................................ 47
Muting the Recovered Data while the LOS is being Declared ..................................................... 47
COMMAND REGISTER CR3 (ADDRESS = 0X03) ............................................................. 48
COMMAND REGISTER CR11 (ADDRESS = 0X0B) ........................................................... 48
3.7 ROUTING THE RECOVERED TIMING AND DATA INFORMATION TO THE "RECEIVING TERMINAL EQUIPMENT"
48
Routing "Dual-Rail" Format Data to the Receiving Terminal Equipment ..................................... 48
Routing Single-Rail Format (Binary Data Stream) data to the Receive Terminal Equipment ..... 50
COMMAND REGISTER CR3 (ADDRESS = 0X03) ............................................................. 50
COMMAND REGISTER CR11 (ADDRESS = 0X0B) ........................................................... 50
COMMAND REGISTER CR3 (ADDRESS = 0X03) ............................................................. 50
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