參數(shù)資料
型號(hào)： LXT6155LE
元件分類： 通信、網(wǎng)絡(luò)模塊及開(kāi)發(fā)工具
英文描述： Telecomm/Datacomm
中文描述： 電信/數(shù)據(jù)通信
文件頁(yè)數(shù)： 3/48頁(yè)
文件大小： 1105K
代理商： LXT6155LE
Datasheet
3
Contents
Contents
1.0
Pin Assignments and Signal Descriptions
.................................................................................8
2.0
Functional Description
................................................................................................................12
2.1
Transmitter..........................................................................................................................12
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 ........................................................................................13
2.1.3
Tx Clock Monitoring...............................................................................................13
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..............................................................................................14
2.2.2
Receive Frame Detect and Byte Alignment...........................................................15
2.2.2.1
Loss of Signal (LOS)..............................................................................15
2.2.2.2
Coax Interface........................................................................................15
2.2.2.3
Fiber Interface........................................................................................15
2.3
Clocks.................................................................................................................................17
2.3.1
Parallel Mode.........................................................................................................17
2.3.1.1
Transmit Parallel Input Clock (TPICLK).................................................17
2.3.1.2
Receive Parallel Output Clock (RPOCLK).............................................17
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).......................................................18
2.4
Jitter....................................................................................................................................18
2.4.1
Jitter Tolerance......................................................................................................18
2.4.2
Jitter Generation (Intrinsic Jitter)............................................................................19
2.4.3
Jitter Transfer.........................................................................................................19
2.5
Operational Modes .............................................................................................................19
2.5.1
Hardware Mode .....................................................................................................19
2.5.1.1
PLL Clock Reference (CIS pin)..............................................................20
2.5.1.2
Loopback Test (RLIS and LLIS pins).....................................................20
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.......................................................................................................21
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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