austriamicrosystems AG
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ams AG
The technical content of this austriamicrosystems document is still valid.
Contact information:
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ams AG
Tobelbaderstrasse 30
8141 Unterpremstaetten, Austria
Tel: +43 (0) 3136 500 0
e-Mail: [email protected]
Please visit our website at www.ams.com
AS5163
AS5163-DB-1.0 Demoboard
12 bit Programmable Magnetic Angle Position Encoder
OPERATION MANUAL
1 General Description
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The AS5163 operates at a supply voltage of 5 V and the
supply and output pins are protected against overvoltage
up to +27 V. In addition the supply pins are protected
against reverse polarity up to – 18 V.
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The AS5163 is a contactless magnetic angle position
sensor for accurate angular measurement over a full turn
of 360°. A sub range can be programmed to achieve the
best resolution for the application. It is a system-on-chip,
combining integrated Hall elements, analog front end,
digital signal processing and best in class automotive
protection features in a single device.
To measure the angle, only a simple two-pole magnet,
rotating over the center of the chip, is required. The
magnet may be placed above or below the IC.
The absolute angle measurement provides instant
indication of the magnet’s angular position with a
resolution of 0.022° = 16384 positions per revolution.
According to this resolution the adjustment of the
application specific mechanical positions are possible.
The angular output data is available over a 12 bit PWM
signal or 12 bit ratiometric analog output.
2 The AS5163 Demoboard
The AS5163 demoboard is a complete rotary encoder system with built-in microcontroller and graphical LCD display.
The board is externally supplied with a 9V battery for standalone operation.
LCD display (for standalone mode)
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J6: External
Encoder
Connector
9V battery connector
(standalone only)
SiLabs C8051F342
microcontroller on
the back
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Knob with D5x2.5mm
diametral magnet,
2mm over the AS5163
External (left) – Onboard (right)
encoder selection switch S2
Onboard AS5163 output signals connector and indicators
Vout, Kick down and GND
Figure 1: AS5163 Demoboard hardware with mounted magnet knob
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AS5163 Demoboard OPERATIONAL MANUAL
Operating the AS5163 Demoboard
The demoboard can be used only
• As standalone unit supplied by a 9V battery
Connect a 9V battery to the battery connector on the top right side of the board. No other connections are required.
2.1
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All AS5163 devices mounted on this demoboards, are pre-programmed parts with following settings:
• 360deg full range operation
• 0.5V to 4.5V analog output
• Kick down not activated
Graphic LCD display
If the magnet is too far away from the encoder, “Error: Magnet is missing!!” will be displayed.
Bargraph representation of
the angle (0° to 359.9°)
Output in LSB
12 bit resolution
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Output voltage
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The LCD display shows the realtime angle position of the magnet, the output voltage and the corresponding 12 bit value
(related to the output voltage of 0.5V-4.5V).
Turning the knob counter-clockwise will increase the angle value until 359.9°, then 0°.
Magnet angle value
from 0° to 359.9°
Figure 2: LCD display
2.2
Vout LED
The Vout LED is connected to the output of the AS5163. The output is analogue and proportional to the angle of the
magnet.
Viewing the output signal on the LED results in brightness, that is proportional to the angle of the magnet. When the
angle of the magnet is at 0° (~0.5V), the LED is almost dark. Turning the knob counter-clockwise towards higher angles
increases the brightness of the LED.
2.3
Kick LED
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He kick down is not activated in this version of demoboard, hence the Kick LED is always ON.
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2.4
Encoder selection switch
The switch S2 selects the encoder which communicates with the microcontroller.
1.
Right position (default):
Onboard AS5163
2.
Left Position:
External AS5163 connected on J6
The signals of the interface (OUT) and the power supply (5V, GND) of an external device can be
connected directly to J6. In this configuration, this data is displayed on the LCD.
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An AS5163 can be attached to J6 and evaluated. See figure 3.
Demoboard switched to external
encoder mode
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Figure 3: external AS5163 connection to the demoboard
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AS5163 Demoboard Schematic and Blockdiagram
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Figure 4: AS5163 Demoboard schematic
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AS5163 Demoboard OPERATIONAL MANUAL
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Figure 5: AS5163 Demoboard PCB Layout
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AS5163 Demoboard OPERATIONAL MANUAL
Revision History
Revision
Date
Description
June 2009
First version
1.1
April 2010
Change in General Description
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1.0
Copyrights
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Disclaimer
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Copyright © 1997-2009, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe.
Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, translated,
stored, or used without the prior written consent of the copyright owner.
All products and companies mentioned are trademarks or registered trademarks of their respective companies.
Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its
Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the
information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems
AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this
product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended
for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental
requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically
not recommended without additional processing by austriamicrosystems AG for each application.
The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However,
austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to
personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or
consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical
data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering
of technical or other services.
Contact Information
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Headquarters
austriamicrosystems AG
A-8141 Schloss Premstaetten, Austria
Tel: +43 (0) 3136 500 0
Fax: +43 (0) 3136 525 01
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For Sales Offices, Distributors and Representatives, please visit:
http://www.austriamicrosystems.com
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