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AS5600
12-bit Programmable Contactless Potentiometer
Operation Manual: AS5600-SO_RD_ST
www.ams.com Revision 1.0 / 30.06.2014 page 1/11
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Revision
Date
Owner
Description
1.0
30.06.2014
rph
Initial Revision
AS5600-SO_RD_ST
Operation Manual
Table of Contents
1 General Description ............................................................................................................. 3
1.1 Kit Content ........................................................................................................................... 3
2 Getting Started ..................................................................................................................... 3
2.1 Adapter Board Pin-Out ......................................................................................................... 3
2.2 Adapter Board Description ................................................................................................... 4
2.3 Mechanical Setup ................................................................................................................. 5
2.4 Electrical Setup .................................................................................................................... 6
2.4.1 3-Wire Mode ......................................................................................................................... 6
2.4.2 I2C Mode .............................................................................................................................. 6
3 AS5600 Configuration .......................................................................................................... 7
3.1 Programming the output range ............................................................................................ 7
3.2 Programming a configuration ............................................................................................... 7
3.2.1 Low Power Mode ................................................................................................................. 7
3.2.2 Hysteresis ............................................................................................................................ 7
3.2.3 Output selection ................................................................................................................... 7
3.2.4 Slow Filter ............................................................................................................................ 7
3.2.5 Fast Filter ............................................................................................................................. 7
3.2.6 Watchdog ............................................................................................................................. 8
4 Board Schematics, Layout and BOM ................................................................................... 8
4.1 Schematics ........................................................................................................................... 8
4.2 Layout and Board Dimensions ............................................................................................. 8
4.3 Bill of Materials ..................................................................................................................... 9
5 Evaluation tools .................................................................................................................. 10
6 Ordering Information .......................................................................................................... 10
Copyright ........................................................................................................................................... 11
Disclaimer .......................................................................................................................................... 11
Revision History
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No.
Item
Description
Info
1
AS5600-SO_RD_ST
Reference Module including PCB
2
Quick Start Guide
Pin
Symbol
Description
Info
AS5600-SO_RD_ST
Operation Manual
1 General Description
The reference design allows an easy and fast evaluation of the AS5600 rotary magnetic position
sensor in the lab. Additionally it is possible to replace an existing potentiometer with the AS5600SO_RD_ST. The module is fully assembled with and pcb including the AS5600 position sensor and
its necessary external components. All relevant signals are available on a 7-way connector
Connector and can be easily wired to an existing application. Additionally there are tree-pin header
to replace existing potentiometers.
The AS5600 is a programmable Hall-based rotary magnetic position sensor with a high-resolution
12-bit analog or PWM output for contactless potentiometers. Based on planar Hall technology, this
device measures the orthogonal component of the flux density (Bz) from an external magnet while
rejecting stray magnetic fields.
The default range of the output is 0 to 360 degrees, but the full resolution of the device can be
applied to smaller range by programming a zero angle (start position) and maximum angle (stop
position).
The I²C interface is used for configuration and user programming of non-volatile parameters in the
AS5600 without requiring a dedicated programmer.
1.1 Kit Content
This kit contains following material listed in Table 1. Additional material can be found on our
webpage.
Table 1:
Kit Content
2 Getting Started
The AS5600 reference design is a contactless potentiometer. It can be programmed in 3-Wire Mode
or over I2C.
2.1 Adapter Board Pin-Out
The pin-out of the adapter board is shown in Table 2. For additional information on the AS5600 pins
refer to the product datasheet.
Table 2:
Adapter Board Pin-Out (J1)
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Pin
Symbol
Description
Info
1
VDD
Positive Power Supply
2
OUT
Output Pin
Analog Output default, PWM possible, Is used
for programming option B
3
DIR
Direction input
CCW default. Pulled to GND using R2. Remove
R2 and insert at R1 for CCW direction.
4
PGO
Programming Mode
Pull to GND using R4 for Programming Option B
(refer to the datasheet)
5
SDA
I2C Data
6
SCL
I2C Clock
7
GND
Ground
Pin
Symbol
Description
Info
1
VDD
Positive Power Supply
2
OUT
Output Pin
Analog Output default, PWM possible, Is used
for programming option B
7
GND
Ground
AS5600-SO_RD_ST
Operation Manual
Table 3:
Adapter Board Pin-Out (J2)
2.2 Adapter Board Description
The AS5600 is connected over the 7-way header or by using the 3-Wire Mode. Connect the desired
pins of the AS5600 using the headers and resistors.
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Short J1
to operate
in 3.3V
Use 0R for R4
PGO mode
Use R1 or R2
direction
Potentiometer Shaft
Sensor Magnet
AS5600
PCB
Bearing
AS5600-SO_RD_ST
Operation Manual
Figure 1:
AS5600-SO_RD_ST PCB Description
3-Way Header
to enable
to select the
7-Way Header
2.3 Mechanical Setup
The contactless potentiometer reference design comes with the AS5600-SO_RD_ST PCB
assembled. The PCB holds all necessary components to operate the AS5600 in a contactless
potentiometer application. The configuration of the reference module is shown in Figure 2.
Figure 2:
Mechanical Configuration
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+
-
Analog or PWM IN
+
-
SDA
SCL
AS5600-SO_RD_ST
Operation Manual
The magnet is already aligned to get AGC values in the middle of the AGC range.
Note: If the magnetic field seen by the AS5600 would be below 8mT, the output would be switched
off and permanent angle programming would not be possible.
2.4 Electrical Setup
The reference module is many used in following configurations in 5V or in 3.3V mode.:
2.4.1 3-Wire Mode
In this mode, the power supply and the output pin of the reference module are connected. To
program a custom angular output range, short R4 using a 0R resistor to enable the programming
option B. Follow the step-by-step instructions in the AS5600 datasheet to program the device.
Figure 3:
Using the board in 3-Wire Mode
µC
2.4.2 I2C Mode
Using the I2C Interface, all functions of the AS5600 can be configured and permanently
programmed. Additionally the output and a raw angle (unmodified value) can be read from the
output registers.
Figure 4:
Using the reference module in I2C Mode
µC
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AS5600-SO_RD_ST
Operation Manual
3 AS5600 Configuration
All options to configure the AS5600 are shown below. The AS5600 operates with a default
configuration if no configuration was programmed.
3.1 Programming the output range
To adjust a custom angle to the full output range or to modify the Zero Position of the device, the
AS5600 must be programmed. Following options are availbale:
Progamming start and stop position with I2C (Option A)
Progamming start and stop position in 3-Wire Mode (Option B)
Programming an angular excursion with I2C (Option C)
Follow the step-by-step instructions in the AS5600 datasheet for one of the above programming
options.
Note: To program only the zero position with Option B, Program an angular excursion of 360deg
using Option C first.
3.2 Programming a configuration
A configuration must be written using the I2C interface. The Burn_Setting command (Write 0x40
into register 0xFF) can be used to permanently program a configuration.
3.2.1 Low Power Mode
Three low power modes are available to reduce the power consumption down to 1,5mA max.
3.2.2 Hysteresis
A 1 to 3 LSB hysteresis of the 12-bit resolution can be enabled.
3.2.3 Output selection
Per default, the Analog Output is active if a magnet is present. Additionally the Output Pin can be
switched to PWM with the option to select a PWM frequency (115Hz,230Hz,460Hz,920Hz)
3.2.4 Slow Filter
The slow filter allows improving the output noise. The default setting for the Slow Filter is 16x and
can be reduced for faster response.
3.2.5 Fast Filter
The fast filter is active by selecting a Fast Filter Threshold. If the output value remains below the
threshold, the output noise is defined by the slow filter setting. When exceeding the threshold, the
output noise is defined from the fast filter for fast output response. The output noise is again defined
by the slow filter as soon as the output stays in the threshold again.
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AS5600-SO_RD_ST
Operation Manual
3.2.6 Watchdog
If the watchdog is active, the AS5600 automatically enters Low Power Mode 3 after one minute if
the output value stays within a threshold of 4 LSB.
4 Board Schematics, Layout and BOM
The schematic, layout and BOM of the adapterboard are shown below for reference.
4.1 Schematics
The schematic of the board is shown below in Figure 5.
Figure 5:
Reference Module PCB Schematic
4.2 Layout and Board Dimensions
The PCB layout is shown below in Figure 6.
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Designator
Part
Footprint
Manufact
urer
Comment
J1
Picoblade 7 Pin
Picoblade 7 Pin
J2
Header / not populated
R1
Resistor / not populated
R0603
R2
0R
R0603
clockwise direction default
R3
Resistor / not populated
R0603
C1
C0603
0603
C2
C0805
0805
TVS1
SP0504BAHT
SP0504BAHT-SOT23
TVS2
SP0502BAHT
SP0502BAHT-SOT23
R4
Resistor / not populated
R0603
U1
AS5600
SOIC-8
amsAB
Smart Potentiometer IC
AS5600-SO_RD_ST
Operation Manual
Figure 6:
Reference Module PCB layout
4.3 Bill of Materials
The BOM of the pcb is below in Table 4.
Table 4:
Bill of Materials
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Ordering Code
Description
Image
USB I&P Box
To configure the AS5600
Ordering Code
Description
Comments
AS5600-SO_RD_ST
AS5600 Reference Module
For rapid evaluation and prototyping
AS5600-SO_RD_ST
Operation Manual
5 Evaluation tools
To configure the AS5600, no dedicated programmer is needed. For fast setup time the USB I&P
Box can be used to configure the AS5600 over I2C. The USB I&P Box can be ordered from the ams
webpage.
Please find the ordering information below in Table 5.
Table 5:
Ordering Information for Evaluation Tools
6 Ordering Information
Please find the ordering information below in Table 6.
Table 6:
Ordering Information
Get additional support material online at http://www.ams.com/AS5600.
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AS5600-SO_RD_ST
Operation Manual
Copyright
Copyright ams AG, Tobelbader Strasse 30, 8141 Unterpremstätten, 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.
Disclaimer
Devices sold by ams AG are covered by the warranty and patent indemnification provisions
appearing in its Term of Sale. ams AG makes no warranty, express, statutory, implied, or by
description regarding the information set forth herein. ams 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 ams AG for current information. This product is intended
for use in commercial applications. Applications requiring extended temperature range, unusual
environmental requirements, or high reliability applications, such as military, medical life-support or
life-sustaining equipment are specifically not recommended without additional processing by ams
AG for each application. This Product is provided by ams “AS IS” and any express or implied
warranties, including, but not limited to the implied warranties of merchantability and fitness for a
particular purpose are disclaimed.
ams 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 ams AG rendering of technical or other services.
Contact Information
Headquarters
ams AG
Tobelbader Strasse 30
8141 Unterpremstaetten
Austria
T. +43 (0) 3136 500 0
For Sales Offices, Distributors and Representatives, please visit:
http://www.ams.com/contact
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