ST STM32 User Manual page 3

Usb demonstration kit
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UM0722
9.5
Microphone functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9.6
TS4657 stereo audio DAC functionality . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9.7
TS4962 mono Class-D power amplifier functionality . . . . . . . . . . . . . . . . 22
9.8
TS2012 stereo Class-D power amplifier functionality . . . . . . . . . . . . . . . . 23
10
LEDs and buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10.1
LED indicators on the STM32 controller board . . . . . . . . . . . . . . . . . . . . 25
10.2
LED indicators on the TS4657 audio card . . . . . . . . . . . . . . . . . . . . . . . . 25
10.3
B1 button on the STM32 controller board . . . . . . . . . . . . . . . . . . . . . . . . 25
11
Demonstration kit software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
11.1
Design firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
11.2
USB Audio Device Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
11.3
11.3.1
11.3.2
11.4
12
Test measurement of the audio signal . . . . . . . . . . . . . . . . . . . . . . . . . 30
13
Addendum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Appendix A STM32F103 controller board - BOM . . . . . . . . . . . . . . . . . . . . . . . . . 32
Appendix B STM32F103 controller board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Appendix C TS4657 audio card - artwork prints . . . . . . . . . . . . . . . . . . . . . . . . . 38
Appendix D STM32F103 controller board - schematic . . . . . . . . . . . . . . . . . . . . 40
Appendix E TS4657 audio card - schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
www.BDTIC.com/ST
PC USB demonstration kit application . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Record-replay application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Doc ID 15867 Rev 1
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