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AS5040 8-bit Programmable Magnetic Rotary Encoder
AS5115
Programmable 360° Magnetic Angle Encoder with
SINE & COSINE Output Signals
1 General Description
AS5115 Adapterboard
OPERATION MANUAL
The AS5115 is a contactless rotary encoder sensor for accurate angular measurement over a full turn of 360º and over an extended ambient temperature range of -
40ºC…+150ºC.
Based on an integrated Hall element array, the angular integrated into existing architectures and optimized for various applications in terms of speed and accuracy.
An SSI Interface is implemented for signal path configurations, as well as a one time programmable register block (OTP), which allows the customer to adjust the signal position of a simple two-pole magnet is translated into analog output voltages. The angle information is provided by means of buffered sine and cosine voltages. This approach gives maximum flexibility in system design, as it can be directly
2 The AS5115 Adapter board
fields. path gain for different mechanical constraints and magnetic valid
2.1
Board description
The AS5115 adapter board is a simple circuit allowing test and evaluation the rotary encoder quickly without building a test fixture or
AG still
CM_COS and CM_SIN. The common mode voltage at JP2 – 2 and JP – 3 provide the same level. Resistor R1 (100k) is used as
JP1 connector
(GND, power supply,
Output and interface)
4 x 2.6mm mounting holes
AS5115 encoder
Figure 1: AS5115 Adapter board
Technical
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JP2 connector
(PROG, CM_COS,
CM_SIN)
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AS5115 Programmable Magnetic Rotary Encoder
Adapterboard Operation Manual
2.2
Mounting the AS5115 adapter board
M2~M2.5 Screw + nut
Rotating shaft and magnet holder
Not ferromagnetic (plastic, brass, copper, stainless steel, aluminum…)
Bearing
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Casing
Spacer
AS5115-AB PCB still valid encoder, and should be centered on the middle of the package with a tolerance of 0.5mm.
Figure 2: AS5115 adapter board mounting and dimension Technical
The airgap between the magnet and the encoder casing should be maintained in the range 0.5mm~2mm.
The magnet holder must not be ferromagnetic. Materials as brass, copper, aluminum, stainless steel are the best choices to make this part.
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AS5115 Programmable Magnetic Rotary Encoder
Adapterboard Operation Manual
3 AS5115 adapter board and pinout
Pin#
Board
JP1 - 1
JP1 - 2
JP1 - 3
JP1 - 4
JP1 - 5
JP1 - 6
Pin#
AS5115
JP1 - 7
7
16
1
2
3
8
1 0
JP2 – 1
JP2 – 2
JP2 - 3
Pin types: DIO
DI
AO
S
6
11
9
Symbol
Board
GND
5V
CLK
Figure 3: AS5115 adapter board connector s and encoder pinout
Type
S
S
DI
Supply ground
Positive supply
Clock input for digital interface
Description
CS
DIO
SIN
C O S
PROG
DI
DIO
AO
AO
Chip select
Data I/O for digital interface
AG
OTP Programming Pad
CM_COS
CM_SIN
digital input/output
digital input
supply pin
AO
AO
analog output
Switchable buffered analog or common mode output
Switchable buffered analog or common mode output content still valid
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AS5115 Programmable Magnetic Rotary Encoder
Adapterboard Operation Manual
4 Operation case
4.1
4.1 Standalone Sine-Cosine Output
AG
Figure 4: Operation cases with the adapter board still
The AS5115 provides analog Sine and Cosine outputs (JP1 – 6 and JP1 – 7). These outputs allow the user to perform the angle calculation by an external ADC + µC, e.g. to compute the angle with a high resolution. The signal lines should be kept ams
For further information, please refer to datasheet. content valid
Technical
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AS5115 Programmable Magnetic Rotary Encoder
Adapterboard Operation Manual
4.2
Programming the AS5115
still valid
For programming of the OTP, an additional voltage has to be applied to the pin PROG. It has to be buffered by a fast
100nF capacitor (ceramic) and a 10µF capacitor (as close as possible to PROG pin).
Programming of the AS5115 OTP memory does not require a dedicated programming hardware. The programming can be simply accomplished over the serial 3-wire interface (see Figure 5). For permanent programming (command PROG OTP, content
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AS5115 Programmable Magnetic Rotary Encoder
Adapterboard Operation Manual
5 AS5115 adapter board hardware
5.1
AS5115-AB-1.0 schematics
Figure 6: AS5115-AB-1.0 adapterboar d schematics
5.2
AS5115-AB-1.0 PCB layout
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Technical
Figure 7: AS5115-AB-1.0 adapter boar d layout
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AS5115 Programmable Magnetic Rotary Encoder
Adapterboard Operation Manual
Revision History
Description Revision
1.0
Date
05.March 2010 First release
Copyrights
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.
Disclaimer
Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its valid
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
AG still requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically 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
ams
Headquarters austriamicrosystems AG content
A-8141 Schloss Premstaetten, Austria
Tel: +43 (0) 3136 500 0
Fax: +43 (0) 3136 525 01
For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com
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