USB通用串行总线音频回放外设(USB-APP)UDA133

1. INTRODUCTION ....................................................................................................... 5
1.1 General Information .......................................................................................... 5
1.2 Universal Serial Bus overview ............................................................................ 6
1.3 Definitions, Acronyms and Abbreviations ............................................................ 10
2. INSTALLING THE USB-APP EVALUATION BOARD ............................................... 11
2.1 PC hardware requirements ................................................................................. 11
2.2 PC software requirements .................................................................................. 11
2.3 Board installations .............................................................................................. 12
2.4 In case of problems ............................................................................................ 13
2.4.1 “USB Device not responding” ..................................................................... 13
2.4.2 Device is recognized but there is no sound ................................................. 14
2.4.3 Sound is still coming from the “old” sound system ...................................... 14
3. HARDWARE DESCRIPTION ...................................................................................... 15
3.1 Input and output connectors ................................................................................ 16
3.2 Jumpers, Headers and Switches ......................................................................... 16
3.3 Chip pin out ........................................................................................................ 17
3.4 Schematics ......................................................................................................... 19
3.5 List of active components ................................................................................... 20
3.5.1 Integrated Circuits .................................................................................. 20
3.5.2 Transistors ............................................................................................. 20
3.6 List of passive components ................................................................................ 20
3.6.1 Resistors ............................................................................................... 21
3.6.2 Capacitors ............................................................................................. 22
3.6.3 Inductors ............................................................................................... 23
3.6.4 Crystal Oscillators ................................................................................. 23
4. REFERENCES ........................................................................................................... 24
5. IN CASE OF PROBLEMS .......................................................................................... 24