austriamicrosystems AG is now ams AG The technical content of this austriamicrosystems document is still valid. Contact information: Headquarters: ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 e-Mail: ams sales ams.com Please visit our website at www.ams.com AS5040 8-bit Programmable Magnetic Rotary Encoder AS5245-AB-v1.0 Adapterboard AS5245 OPERATION MANUAL Programmable Magnetic Rotary Encoder 1 General Description The AS5245 is a contactless magnetic angle encoder for PWM signal. An internal voltage regulator allows operation of accurate measurement up to 360 and includes two AS5145 the AS5245 from 3.3V or 5.0V supplies. devices in a punched stacked leadframe. 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 magnet may be placed above or below the IC. The absolute angle measurement provides instant indication of the magnets angular position with a resolution of 0.0879 = 4096 positions per revolution. This digital data is available as a serial bit stream and as a 2 The AS5245 Adapter board 2.1 Board description The AS5245 adapter board is a simple circuit allowing test and evaluation without building a test fixture or PCB. The PCB can be used as standalone unit or attached to a microcontroller. The standalone operation requires a 5V or 3.3V power supply only the magnets angle can be read on the PWM or analog output. J1 connector - TOP die (Prg, power supply, serial interface) J2 connector - TOP die (PWM, incremental and status outputs) AS5245 encoder J3 connector - BOT die (Prg, power supply, 4 x 2.6mm mounting serial interface) holes J4 connector - BOT die (PWM, incremental and status outputs) Figure 1: AS5245 Adapterboard Revision 1.0, October 2009 Page 1 of 10 www.austriamicrosystems.com ams AG Technical content still valid