AMS AS5147P User manual

Eval Kit Manual
DN[Document ID]
ams Eval Kit Manual, Confidential
Page 1
[v1-0] 2015-Jan-14
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AS5147P
Adapter Board
AS5147P-TS_EK_AB

AS5147P Adapter Board
ams Eval Kit Manual, Confidential
Page 2
[v1-0] 2015-Jan-14
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Table of Contents
1Introduction .......................................................................................................................... 3
1.1 Kit Content ........................................................................................................................... 3
2Board description................................................................................................................. 4
2.1 Mounting the AS5147P adapter board................................................................................. 5
3AS5147P adapter board and pinout..................................................................................... 6
4Operation case..................................................................................................................... 7
4.1 One device SPI mode, unidirectional –3 wire..................................................................... 7
4.2 One device SPI mode, bidirectional –4 wire....................................................................... 8
5AS5147P-TS_EK_AB Hardware.......................................................................................... 9
5.1 AS5147P-TS_EK_AB schematics ....................................................................................... 9
5.2 AS5147P-TS_EK_AB PCB layout .....................................................................................10
6Ordering & Contact Information ......................................................................................... 11
7Copyrights & Disclaimer..................................................................................................... 12
Revision History
Revision
Date
Owner
Description
1.0
14.01.2014
mzie
Initial version

AS5147P Adapter Board
ams Eval Kit Manual, Confidential
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[v1-0] 2015-Jan-14
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1 Introduction
The AS5147P adapter board is a small PCB allowing simple and quick testing or evaluation of the
AS5147P magnetic position sensor without the need to build a test fixture or design an own PCB.
1.1 Kit Content
Figure 1: Kit content
Pos.
Item
Comment
1
AS5147P-TS_EK_AB
Adapter board
2
AS5000-MD6H-2
Diametric Magnet, D6x2.5mm, NdFeB, Bomatec AG
1
2

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ams Eval Kit Manual, Confidential
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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.
The connector JP1 allows to select between 5V or 3.3V operation.
R1 and R2 are 0 ohm resistors in 0603 package. Depending on the supply voltage either R1 or
R2 has to be populated. For 5V operation R1 has to be populated and R2 has to be removed
(default case). Vice versa for 3.3V operation.
Figure 2: AS5147P adapter board
P1 connector
(Not populated)
AS5147P
4x2.6mm
Mounting holes
JP1 connector
(Selecting supply
voltage)

AS5147P Adapter Board
ams Eval Kit Manual, Confidential
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[v1-0] 2015-Jan-14
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2.1 Mounting the AS5147P adapter board
Figure 3: Mounting and dimensions
A 6x2.5mm diametric magnet must be placed over or under the AS5147P sensor, and should be
centered on the middle of the package with a tolerance of 0.5mm. The airgap 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
AS5147P
0.5-3mm
AS5147P
MISO GNDCLKCSnNC3V35V
W/PWM V UNCTESTI/PWMAB
5V/3V3

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3 AS5147P adapter board and pinout
Figure 4: AS5147P adapter board and sensor pinout
Pin#
Board
Pin#
AS5147P
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
NC
Not connected
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
5
TEST
Test pin
P1 - 13
NC
Not connected
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
AS5147P
MISO GNDCLKCSnNC3V35V
W/PWM V UNCTESTI/PWMAB
5V/3V3
AS5147P
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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4 Operation case
4.1 One device SPI mode, unidirectional –3 wire
The AS5147P adapter board can be directly connected to an industry standard SPI port of a
microcontroller. The minimum connection requirements for unidirectional communication between
the microcontroller and the AS5147P are MISO, CLK, CSn. In this case the MOSI pin is tied to VDD
which will result in reading only the 14-bit Angle Register (0x3FFF). See AS5147P datasheet
register table, register 0x3FFF.
Figure 5: One device SPI mode, unidirectional –3 wire
MOSI
AS5147P
MISO GNDCLKCSnNC3V35V
W/PWM V UNCTESTI/PWMAB
5V/3V3
Regulated
Power Supply
3-3.6V
GND
MISO MOSI
SCK
SS/
GND
VDD
MCU

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4.2 One device SPI mode, bidirectional –4 wire
If it’s needed to read other registers than the Angle Register (0x3FFF) or to write to registers of the
AS5147P the MOSI connection is required.
Figure 6: One device SPI mode, bidirectional –4 wire
MOSI
AS5147P
MISO GNDCLKCSnNC3V35V
W/PWM V UNCTESTI/PWMAB
5V/3V3
Regulated
Power Supply
3-3.6V
GND
MISO MOSI
SCK
SS/
GND
VDD
MCU

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5 AS5147P-TS_EK_AB Hardware
5.1 AS5147P-TS_EK_AB schematics
Figure 7: AS5147P-TS_EK_AB schematics

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ams Eval Kit Manual, Confidential
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5.2 AS5147P-TS_EK_AB PCB layout
Figure 8: AS5147P-TS_EK_AB PCB layout