AMS AS5030 Посібник з експлуатації - Сторінка 2
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Друкувати сторінкуAS5030 8-bit Programmable Magnetic Rotary Encoder
AS5030
8 bit Programmable Magnetic Rotary Encoder
1 General Description
The AS5030 is a contactless magnetic rotary encoder for
accurate angular measurement over a full turn of 360°.
It is a system-on-chip, combining integrated Hall elements,
analog front end and digital signal processing in a single
device.
To measure the angle, only a simple two-pole magnet,
rotating over the center of the chip is required.
The absolute angle measurement provides instant indication
of the magnet's angular position with a resolution of 8 bit =
256 positions per revolution. This digital data is available as a
serial bit stream and as a PWM signal.
In addition to the angle information, the strength of the
magnetic field is also available as a 6-bit code.
Data transmission can be configured for 1-wire (PWM), 2-
wires (CLK, DIO) or 3-wires (CLK, DIO, CS).
2 The AS5030 Adapterboard
2.1
Board description
The AS5030 adapter board is a simple circuit allowing to test and evaluate the AS5030 rotary encoder quickly without having to build
a test fixture or PCB.
The PCB can be used as standalone unit or attached to a microcontroller.
The standalone operation requires only a 5V power supply, the magnet's angle can be read on the PWM or analog output.
P2 solder bridge
Close (default): 3 wire serial mode
Open: 2 wire serial mode
P1 solder bridge
Close (default): Sin/Cos output disabled
Open: Sin/Cos output enabled
Analog Sin/Cos outputs
(P1 must be opened)
Revision 1.0, 26.February 2009
A software programmable (OTP) zero position simplifies
assembly as the zero position of the magnet does not need
to be mechanically aligned.
A Power Down Mode together with fast startup- and
measurement cycles allows for very low average power
consumption and makes the AS5030 also suitable for battery
operated equipment.
Figure 1: AS5030 Adapterboard
www.austriamicrosystems.com
AS5030-AB-2.0 Adapterboard
OPERATION MANUAL
JP1 connector
(Alarm, PWM, analog,
power supply)
JP2 connector
(serial IO, power supply)
4 x 2.6mm mounting
holes
AS5030 encoder
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