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AS5x47U Adapter Board
Content Guide
Demo Kit Manual •PUBLIC
UG000401 •v1-00 • 2018-Oct-31
12 │2
Content Guide
Content Guide ............................................ 2
1Introduction.................................... 3
1.1 Kit Content.................................................... 3
1.2 Ordering Information .................................... 3
2Board Description.......................... 4
2.1 Mounting the AS5X47U Adapter Board....... 5
3Adapter Board and Pinout ............ 6
4Operation Case .............................. 7
4.1 One Device SPI Mode, Bidirectional –4
Wire, 3V3 Operation..................................... 7
4.2 One Device SPI Mode, Bidirectional –4
Wire, 5V Operation .......................................8
5AS5x47U-TS_EK_AB Hardware.... 9
5.1 Schematics....................................................9
5.2Layout ........................................................ 10
6Revision Information................... 11
7Legal Information ........................ 12
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AS5x47U Adapter Board
Introduction
Demo Kit Manual •PUBLIC
UG000401 •v1-00 • 2018-Oct-31
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1 Introduction
The AS5x47U adapter board is a small PCB allowing simple and quick testing or evaluation of the
AS5x47U magnetic position sensor without the need to build a test fixture or design an own PCB.
AS5x47U-TS_EK_AB can be assembled with an AS5047U or AS5147U sensor.
1.1 Kit Content
Figure 1:
Adapter Board
Figure 2:
Diametric Magnet
Pos.
Item
Comment
1
AS5x47U-TS_EK_AB
Adapter board
2
AS5000-MD8H-2
Diametric magnet, D8x2.5mm, NdFeB, Bomatec AG
1.2 Ordering Information
Ordering Code
Description
AS5x47U-TS_EK_AB
Adapter board assembled with AS5147U per default
Assembly of AS5047U possible (pin compatible)
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AS5x47U Adapter Board
Board Description
Demo Kit Manual •PUBLIC
UG000401 •v1-00 • 2018-Oct-31
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2 Board Description
The PCB can either be connected to an external microcontroller or to the USB I&P Box which is
available on our webpage. (USB I&P Box)
P1 has to be populated with a 2x8 pin header and is required for power supply as well as SPI, ABI,
UVW/PWM interfaces.
C1 (100 nF) and C2 (1 µF) are capacitors to stabilize supply voltage.
R1 is an optional 0 ohm resistor with 0608 package. User can populate to connect 5V and 3V3 pin in
case of 3V operation mode. As alternative both pins (5V and 3V3) on pin header P1 can be
interconnected for 3V operation mode
Figure 3 :
AS5x47U Adapter Board
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AS5x47U Adapter Board
Board Description
Demo Kit Manual •PUBLIC
UG000401 •v1-00 • 2018-Oct-31
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2.1 Mounting the AS5X47U Adapter Board
Figure 4 :
Mounting and Dimensions
A diametric magnetized magnet must be placed over or under the AS5x47U sensor, and should be
centered on the middle of the package with a tolerance of 0.5mm. The air gap between the magnet
surface and the package should be maintained in the range 0.5mm to 3mm. The magnet holder must
not be ferromagnetic. Materials as brass, copper, aluminum, stainless steel are the best choices to
make this part.
MOSI
22mm
28mm
11mm
4x2.6mm
AS 5x 47 U
0.5-3mm
AS 5x 47 U
MISO GNDCL KCS nGND3V35V
W/PWM V UGNDGNDI/PW MAB
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AS5x47U Adapter Board
Adapter Board and Pinout
Demo Kit Manual •PUBLIC
UG000401 •v1-00 • 2018-Oct-31
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3 Adapter Board and Pinout
Figure 5:
Adapter Board Pinout
Figure 6:
Sensor Pinout
Figure 7:
Pinout Description
Pin# Board
Pin# AS5X47U
Symbol Board
Type
Description
P1 - 1
11
5V
Power supply
Positive supply voltage
P1 - 2
12
3V3
Power supply
3.3V LDO output
P1 - 3
13
GND
Power supply
Ground
P1 - 4
1
CSn
Digital input
SPI chip select (active low)
P1 - 5
2
CLK
Digital input
SPI clock
P1 - 6
4
MOSI
Digital input
SPI MOSI
P1 - 7
3
MISO
Digital output
SPI MISO
P1 - 8
13
GND
Power supply
Ground
P1 - 9
6
B
Digital output
Incremental signal B (quadrature)
P1 - 10
7
A
Digital output
Incremental signal A (quadrature)
P1 - 11
14
I/PWM
Digital output
Incremental signal I (index) or PWM
P1 - 12
13
GND
Power supply
Ground
P1 - 13
13
GND
Power supply
Ground
P1 - 14
8
W/PWM
Digital output
Commutation signal W or PWM
P1 - 15
9
V
Digital output
Commutation signal V
P1 - 16
10
U
Digital output
Commutation signal U
MOSI
AS 5x47 U
MI SO GNDCL KCS nGND3V35V
W/PW M V UGNDGNDI/PW MAB
AS5x47U
11
2
3
4
5
6
7
14
13
12
11
10
9
8
CSn
CLK
MISO
MOSI
TEST
B
A
I/PWM
GND
VDD3V
VDD
U
V
W/PWM
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AS5x47U Adapter Board
Operation Case
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4 Operation Case
4.1 One Device SPI Mode, Bidirectional –4 Wire, 3V3 Operation
To be able to write and read data from AS5x47U sensor, connect all 4 SPI lines to a SPI master
device.
4.1.1 3V3 Operation
Supply 5V pin and 3V3 with 3.3V.
As an alternative, the user can assemble R1 with a 0 ohm bridge to short the 5V and VDD3V pin. In
this case, only one of the supply pins need to be supplied with 3.3 V.
Digital output operates at 3.3V level.
Figure 8 :
One Device SPI Mode, Bidirectional –4 Wire, 3V3 Operation
MOSI
AS 5x 47 U
MISO GNDCL KCS nGND3V35V
W/PW M V UGNDGNDI/PWMAB
Re gulate d
Power S upply
3-3.6V
GN D
M ISO
M OS I
SCK
SS /
GN D
VDD
MCU
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AS5x47U Adapter Board
Operation Case
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4.2 One Device SPI Mode, Bidirectional –4 Wire, 5V Operation
To be able to write and read data from AS5x47U sensor, connect all 4 SPI lines to a SPI master
device.
4.2.1 5V Operation
Supply 5V pin with 5V.
Leave 3V3 pin open. In this case, the 3V3 pin is the LDO output. No load allowed.
R1 must not be assembled!
Figure 9 :
One Device SPI Mode, Bidirectional –4 Wire, 5V Operation
MOSI
AS 5x 47 U
MISO GNDCL KCS nGND3V35V
W/PW M V UGNDGNDI/PWMAB
Regulated
Power S upply
4.5-5.5V
GN D
M ISO
M OS I
SCK
SS /
GN D
VDD
MCU
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AS5x47U Adapter Board
AS5x47U-TS_EK_AB Hardware
Demo Kit Manual •PUBLIC
UG000401 •v1-00 • 2018-Oct-31
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5.2 Layout
The adapter board is based on two copper layers. All signal and supply lines are placed on Top-Layer,
Bottom-Layer is used as ground plane.
The four mounting holes are connected to GND as well.
Figure 11 :
PCB Layout
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