Datasheet
3
Integrated T1/E1 LH/SH Transceiver for DS1/DSX-1 or PRI Applications — LXT361
Contents
1.0
2.0
General Description
..................................................................................................7
Pin Assignments and Signal Descriptions
......................................................8
2.1
Mode Dependent Signals......................................................................................9
Functional Description
...........................................................................................13
3.1
Initialization..........................................................................................................13
3.1.1
Reset Operation .....................................................................................13
3.2
Transmitter..........................................................................................................13
3.2.1
Transmit Digital Data Interface...............................................................13
3.2.2
Transmit Monitoring................................................................................14
3.2.3
Transmit Drivers.....................................................................................14
3.2.4
Transmit Idle Mode.................................................................................14
3.2.5
Transmit Pulse Shape............................................................................14
3.3
Receiver..............................................................................................................15
3.3.1
Receive Equalizer ..................................................................................15
3.3.2
Receive Data Recovery..........................................................................15
3.3.3
Receiver Monitor Mode ..........................................................................15
3.4
Jitter Attenuation .................................................................................................16
3.5
Diagnostic Mode Operation.................................................................................16
3.5.1
Loopback Modes....................................................................................16
3.5.2
Internal Pattern Generation and Detection.............................................20
3.5.3
Error Insertion and Detection .................................................................22
3.5.4
Alarm Condition Monitoring....................................................................23
3.5.5
Other Diagnostic Reports.......................................................................24
3.6
Parallel Microprocessor Interface........................................................................24
3.6.1
Interrupt Handling...................................................................................24
Register Definitions
.................................................................................................26
Application Information
.........................................................................................32
5.1
Transmit Return Loss..........................................................................................32
5.2
Transformer Data................................................................................................32
5.3
Application Circuit................................................................................................32
Test Specifications
..................................................................................................36
Mechanical Specifications
....................................................................................49
3.0
4.0
5.0
6.0
7.0