lxt6155 Intel Corporation, lxt6155 Datasheet - Page 3

• Manufacturer Part Number: lxt6155
• Description: 155 Mbps Sdh/sonet/atm Transceiver
• Manufacturer: Intel Corporation

Contents
1.0
2.0
Datasheet
Pin Assignments and Signal Descriptions
Functional Description
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
Transmitter .......................................................................................................... 13
2.1.1
2.1.2
2.1.3
Receiver .............................................................................................................. 14
2.2.1
2.2.2
Clocks.................................................................................................................. 18
2.3.1
2.3.2
2.3.3
Jitter..................................................................................................................... 19
2.4.1
2.4.2
2.4.3
Operational Modes .............................................................................................. 19
2.5.1
2.5.2
Serial System Interface ....................................................................................... 23
Parallel System Interface .................................................................................... 23
Loopback Modes .................................................................................................24
2.8.1
2.8.2
Transmitted Signal ................................................................................. 13
2.1.1.1 Fiber Based G.957/GR-253 Transmission Systems ................. 13
Coax Based G.703/GR-253 Transmission Systems .............................. 13
2.1.2.1 CMI Encoding ............................................................................ 14
Tx Clock Monitoring................................................................................ 14
Analog Front End and Timing Recovery ................................................ 14
2.2.1.1 CMI Mode .................................................................................. 14
2.2.1.2 NRZ Mode ................................................................................. 15
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
Parallel Mode ......................................................................................... 18
2.3.1.1 Transmit Parallel Input Clock (TPICLK) .................................... 18
2.3.1.2 Receive Parallel Output Clock (RPOCLK) ................................ 18
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
Crystal Reference Clock (XTALIN/XTALOUT) ....................................... 19
Jitter Tolerance....................................................................................... 19
Jitter Generation (Intrinsic Jitter) ............................................................ 19
Jitter Transfer ......................................................................................... 19
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
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
Local Loopback ...................................................................................... 24
Remote Loopback .................................................................................. 25
........................................................................................... 13
155 Mbps SDH/SONET/ATM Transceiver — LXT6155
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