AS5055A-QF_EK_AB ams

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 AS5050-AB-v1.1 AS5050 / AS5055 Adapterboard Programmable Magnetic Rotary Encoder OPERATION MANUAL 1 VDD General Description The AS5050/AS5055 is is a single-chip magnetic rotary The absolute angle measurement provides instant indication encoder IC with low voltage and low power features. of the magnets angular position with a resolution of: It includes 4 integrated Hall elements, a high resolution ADC - AS5050: 0.35 = 1024 positions per revolution and a smart power management controller. - AS5055: 0.09 = 4096 positions per revolution The angle position, alarm bits and magnetic field information are transmitted over a standard 3-wire or 4-wire SPI interface The AS5055 is available in a small QFN 16-pin 4x4x0.85mm to the host processor. package and specified over an operating temperature of -20 to +85C. 2 The AS5050/AS5055 Adapter board 2.1 Board description The AS5050/AS5055 adapter board is a simple circuit allowing test and evaluation of the AS5050/AS5055 rotary encoder quickly without building a test fixture or PCB. The PCB can be attached to a microcontroller or to the AS5050/AS5055-DB Demoboard as external device. J1 connector Power supply SPI 3 wire 4 wire SPI AS5050/AS5055 communication encoder selection INT/ output EN input 4 x 2.6mm mounting holes Figure 1: AS5050 Adapterboard Revision 1.1, May 2010 Page 1 of 10 www.austriamicrosystems.com ams AG Technical content still valid