參數(shù)資料
型號(hào)： LXT6155
廠商： Intel Corp.
英文描述： 155 Mbps SDH/SONET/ATM Transceiver
中文描述： 155速率的SDH / SONET / ATM的收發(fā)器
文件頁數(shù)： 3/50頁
文件大小： 291K
代理商： LXT6155
Datasheet
3
155 Mbps SDH/SONET/ATM Transceiver — LXT6155
Contents
1.0
2.0
Pin Assignments and Signal Descriptions
......................................................8
Functional Description
...........................................................................................13
2.1
Transmitter..........................................................................................................13
2.1.1
Transmitted Signal .................................................................................13
2.1.1.1 Fiber Based G.957/GR-253 Transmission Systems .................13
2.1.2
Coax Based G.703/GR-253 Transmission Systems ..............................13
2.1.2.1 CMI Encoding............................................................................14
2.1.3
Tx Clock Monitoring................................................................................14
2.2
Receiver ..............................................................................................................14
2.2.1
Analog Front End and Timing Recovery ................................................14
2.2.1.1 CMI Mode..................................................................................14
2.2.1.2 NRZ Mode.................................................................................15
2.2.2
Receive Frame Detect and Byte Alignment ...........................................15
2.2.2.1 Loss of Signal (LOS) .................................................................16
2.2.2.2 Coax Interface...........................................................................16
2.2.2.3 Fiber Interface ...........................................................................16
2.3
Clocks..................................................................................................................18
2.3.1
Parallel Mode .........................................................................................18
2.3.1.1 Transmit Parallel Input Clock (TPICLK) ....................................18
2.3.1.2 Receive Parallel Output Clock (RPOCLK) ................................18
2.3.2
Serial Mode ............................................................................................18
2.3.2.1 Transmit Serial Input Clock (TSICLKP/TSICLKN).....................18
2.3.2.2 Receive Serial Output Clock (RSOCLKP/RSOCLKN) ..............18
2.3.3
Crystal Reference Clock (XTALIN/XTALOUT).......................................19
2.4
Jitter.....................................................................................................................19
2.4.1
Jitter Tolerance.......................................................................................19
2.4.2
Jitter Generation (Intrinsic Jitter) ............................................................19
2.4.3
Jitter Transfer .........................................................................................19
2.5
Operational Modes..............................................................................................19
2.5.1
Hardware Mode......................................................................................20
2.5.1.1 PLL Clock Reference (CIS pin) .................................................20
2.5.1.2 Loopback Test (RLIS and LLIS pins) ........................................21
2.5.1.3 Line Interface Selection (MODE Pin) ........................................21
2.5.1.4 Parallel/Serial Mode Selection (SP pin) ....................................21
2.5.1.5 Tx Amplitude Trim .....................................................................21
2.5.2
Software Mode .......................................................................................22
2.5.2.1 Serial Input Clock (SCLK) .........................................................22
2.5.2.2 Chip Select Input (CS)...............................................................22
2.5.2.3 Serial Input Word (SDI) .............................................................22
2.5.2.4 Serial Output Word (SDO).........................................................22
2.6
Serial System Interface .......................................................................................23
2.7
Parallel System Interface ....................................................................................23
2.8
Loopback Modes.................................................................................................24
2.8.1
Local Loopback ......................................................................................24
2.8.2
Remote Loopback ..................................................................................25
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