
LDB901 Universal Demo Board for 10BASE-T and AUI Applications Developer Manual
iii
Contents
1.0
General Description
..................................................................................................5
1.1
Features................................................................................................................5
Equipment and Setup
...............................................................................................7
2.1
Equipment Requirements......................................................................................7
2.2
Test Setup.............................................................................................................7
2.3
Power Supply........................................................................................................7
2.3.1
Power Supply Option............................................................................8
2.3.1.1
Signal Attenuation Circuitry ....................................................8
2.4
Configuration Options............................................................................................8
2.4.1
Magnetics.............................................................................................8
2.4.1.1
LXT901/901A and LXT907/907A Evaluation..........................8
2.4.1.2
LXT908 Evaluation .................................................................9
Test Points
..................................................................................................................10
Jumpers
.......................................................................................................................11
MAC Controller Capability Modes
.....................................................................12
LED Indicators
...........................................................................................................13
Bill of Materials and Schematics
.......................................................................14
2.0
3.0
4.0
5.0
6.0
7.0
Figures
1
2
3
LDB901 Universal Demo Board............................................................................6
Basic Test Setup...................................................................................................7
LDB901 Schematic..............................................................................................15
Tables
1
2
3
4
5
6
7
8
Power Supply Configuration..................................................................................8
LXT901/901A and LXT907/907A Suitable Magnetics...........................................8
LXT908 Suitable Magnetics ..................................................................................9
LDB901 Test Point Descriptions .........................................................................10
LDB901 Jumper Descriptions..............................................................................11
LDB901 MAC Controller Compatibility Modes ....................................................12
LDB901 LED Descriptions...................................................................................13
LDB901 Bill of Materials......................................................................................14