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PDF AS5020 Data sheet ( Hoja de datos )
| Número de pieza | AS5020 | |
| Descripción | 6-BIT MAGNETIC ANGULAR POSITION ENCODER WITH SERIAL INTERFACE | |
| Fabricantes | austriamicrosystems AG | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AS5020 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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6-BIT MAGNETIC
ANGULAR POSITION ENCODER
WITH SERIAL INTERFACE
Key Features
u Up to 64 positions within 360°
u Non contact switching
u Simple magnet as rotary encoder
u Zero position programmable (independent of
magnet orientation)
u Synchronous Serial Interface (SSI)
u Cascading is possible
u Chip Select Input
u Small 8-Pin SOIC (SMT) Package
u Temperature Range: -40°C ...+85°C
Ordering Information
Part Number Package
AS5020 SOIC 8
AS5020T SOIC8 Tape and Reel
General Description
The device provides the absolute angular position of a simple magnet that is placed under or
above the device’s surface. The device includes the Hall Sensor Array, signal conditioning and
post processing needed to generate a 6-bit binary code. The binary code can be easily
accessed by a Synchronous Serial Interface (SSI). The angle between the device and the
magnetic polarisation axis is exactly represented by one of 64 sectors (of 5.625° each) in the
full 360° range. Zero-Position Programming allows one time programming of a specific zero
position between the device and the magnet. The initial zero position is shown below.
60
56
52
0... initial
4
α8
12
48
44
N
S
16
20
Functional Block Diagram
40 24
36 28
32
4mm
Rev. n/c
Page 1/11
Feb 2001
1 page  
6-Bit Magnetic Position Encoder –Data Sheet Rev.1.0
AS5020
PD/CS
12
CLK
789
DATA
Latch
actual value
D5 D4 D0 NVR Parity
D5 D4 D0 NVR Parity
angle 1
angle 2
angle n
Figure 3 Daisy Chain read out
D5
Next
value
Zero Position Programming
A simple single pin programming allows changing the initial zero position. It is easy to program
permanently a new zero-reference into the internal OTP (one time programmable) ROM. This
allows a fast and economic magnet placement since the intrinsic orientation is not important.
Single Pin Programming is provided via the PROG pin. Fig.4 shows the typical programming
sequence needed for fixing the new zero position.
Zero Position Programming Sequence
Before calibration, the new zero position must be adjusted in measurement mode (PD/CS=0).
The rising edge of PD/CS gets the actual position and stores it internally for the permanent
programming. A high level at the PROG Pin during power-down (PD/CS=1) with a minimum
duration of 300 V#HQDEOHV#SURJUDPPLQJ1#$IWHU#RQH#LQLWLDO#GXPP\#ELW#SXOVH/#VL[#SXOVHV#RI#;928µs
select the latched position information and zap the reference value into the OTP ROM.
Continuous Read Out Mode Selection
An optional 9th pulse after the initialisation pulse, the dummy pulse, and the 6 data pulses can
be used to set Continuous Read Out Mode (see Fig.4).
PROG [V]
8
tProgEN
Initialisation
Zero Position Programming
Enable
Programming
0
Calibration Position
Latched
1 2 3 45 6
Dummy
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
CS
Figure 4 Programming sequence
Note: Daisy Chain configuration is not possible in Continuous Read Out Mode.
Optional
78
Bit 5 Cont.
Mode
Measurement
Enable
t
Rev. n/c
Page 5/11
Feb 2001
5 Page 
6-Bit Magnetic Position Encoder –Data Sheet Rev.1.0
AS5020
Headquarters:
Austria Mikro Systeme
International AG
Schloß Premstätten
A-8141 Unterpremstätten, Austria
Tel: +43 (3136) 500-0
Fax: +43 (3136) 525 01, 536 50
email: [email protected]
http:
www.amsint.com
Sales Offices:
Germany:
Tegernseer Landstrasse 85
D-81539 München
Tel.:
+49 (89) 69 36 43-0
Fax: +49 (89) 69 36 43-66
Wilhelm-Busch-Platz 1
D-22850 Hamburg/Norderstedt
Tel.: +49 (40) 522 80 13
Fax: +49 (40) 522 80 99
France:
124 Avenue de Paris
F-94300 Vincennes
Tel.: +33 (1) 43 74 00 90
Fax: +33 (1) 43 74 20 98
Sweden:
Sjöängsvägen 7
S-19272 Sollentuna
Stockholm, Sweden
Tel.: +46 (8) 754 93 95
Fax: +46 (8) 754 45
United Kingdom:
Coliseum Business Centre
Watchmoor Park
Camberley, Surrey
England GUIS 3YL
Tel.: +44 (1276) 23 3 99
Fax: +44 (1276) 29 3 53
ltaly:
Via Leone Tolstoi, 64
I-20146 Milano
Tel.: +39 02 423 67 13
Fax: +39 02 422 90 889
Amselweg 8
D-72820 Sonnenbühl
Tel.: +49 (7128) 92 71 28
Fax: +49 (7128) 92 71 40
USA:
Suite 300
4030 Wake Forest Road
Raleigh
NC27609
Tel.:
+1 (919) 349 7551
Fax: +1 (509) 696 2713
Japan:
Shin Yokohama Daini Center Bldg. 10F
3-19-5, Shin Yokohama
Kohoku-ku, Yokohama 222-0033
Tel.:
+81 (45) 474 0962
Fax: +81 (45) 472 9845
Devices sold by Austria Mikro Systeme are covered by the warranty and patent idemnification provisions appearing in its Term of Sale. Austria Mikro Systeme
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. Austria Mikro Systeme 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 Austria Mikro Systeme 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 life-sustaining equipment are specifically not recommended without additional processing by Austria Mikro Systeme for each application
Copyright © 2001, Austria Mikro Systeme International AG, Schloss Premstätten, 8141 Unterpremstätten, Austria. 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. The information
furnished here by Austria Mikro Systeme is believed to be correct and accurate. However, Austria Mikro Systeme 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 Austria Mikro Systeme rendering of technical or other services.
Rev. n/c
Page 11/11
Feb 2001
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AS5020.PDF ] | |
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