
AS3933-AN01
Demoboard Description
www.ams.com
Revision 1.1/ 24/02/13
page 6/20
Jumper Name Description
Info
E2
SCL
Serial Digital Interface Clock
E3
SDI
Serial Digital Interface Input
E4
SDO
Serial Digital Interface Output
E5
GND
Ground (0V)
Note: When the AS3933 Demoboard is connected to the GUI it is necessary to RESET the device
by turning the AS3933 off and on via switch C. Another possibility to prepare the Demoboard for
USB connection is to press buttons A and B simultaneously before connecting the USB cable.
4.2 125kHz Wake-up Transmitter Board
Figure 5: 125kHz Wake-up Transmitter Board
Figure 6: User Interface Description
Label Name
Description
Info
A
PATT+DATA
Data –
Button
The transmitter continuously sends the wake-up
pattern plus data (01010101).
B
PATT
Single-Pattern –
Button
The transmitter sends a single wake-up pattern.
C
AUTO
Automatic Pattern –
Button
The transmitter sends a wake-up pattern every 1s.
D
STOP
Stop Pattern –
Button
The transmitter stops transmitting.
E
USB-
Connector
Mini USB 5-pin
connector
USB interface for the GUI.
F
Power Supply
+9V/2A DC Power
Supply
Insert main power adapter here.
E
A
B
C
D
F