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AS5048 Datasheet(PDF) 3 Page - ams AG |
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AS5048 Datasheet(HTML) 3 Page - ams AG |
3 / 30 page Revision 1.3 www.a ustriamicrosystems.com Page 2 of 29 AS5048A/AS5048B Magnetic Rotary Encoder 14-bit Angular Position Sensor Datasheet Contents GENERAL DESCRIPTION .................................................................................................................. 1 KEY FEATURES & BENEFITS.................................................................................................................. 1 APPLICATIONS ..................................................................................................................................... 1 BLOCK DIAGRAM ................................................................................................................................. 1 1 PIN CONFIGURATION ................................................................................................................. 5 1.1 PIN DESCRIPTION ........................................................................................................................ 5 2 ELECTRICAL CHARACTERISTICS ............................................................................................ 6 2.1 ABSOLUTE MAXIMUM RATINGS.................................................................................................... 6 2.2 OPERATING CONDITIONS ............................................................................................................. 7 2.3 DC/AC CHARACTERISTICS FOR DIGITAL INPUTS AND OUTPUTS ....................................................... 7 2.4 ELECTRICAL SYSTEM SPECIFICATIONS .......................................................................................... 8 2.5 GLOBAL TIMING CONDITIONS ...................................................................................................... 8 3 FUNCTIONAL DESCRIPTION...................................................................................................... 9 4 OPERATION .................................................................................................................................. 9 4.1 SUPPLY VOLTAGE CONFIGURATION .............................................................................................. 9 4.2 SPI INTERFACE ......................................................................................................................... 10 4.2.1 SPI Interface Signals (4-Wire Mode, Wire_mode = 1) .......................................................... 10 4.2.2 SPI Timing ......................................................................................................................... 11 4.2.3 SPI Connection to the Host UC ........................................................................................... 12 4.2.4 SPI Communication Command Package .............................................................................. 13 4.2.5 Read Package (Value Read from AS5048A) ......................................................................... 14 4.2.6 Write Data Package (Value Written to AS5048A) ................................................................. 14 4.2.7 Register Map SPI ............................................................................................................... 15 4.2.8 SPI Interface Commands .................................................................................................... 16 4.3 I²C INTERFACE .......................................................................................................................... 19 4.3.1 I²C Electrical Specification ................................................................................................ 19 4.3.2 I²C Timing ......................................................................................................................... 20 4.3.3 Register Table .................................................................................................................... 21 4.3.4 I²C Slave address ............................................................................................................... 22 4.4 PWM INTERFACE ...................................................................................................................... 22 5 PACKAGE DRAWINGS AND MARKINGS ................................................................................. 23 5.1.1 Assembly Lot Code ............................................................................................................. 23 6 APPLICATION INFORMATION ................................................................................................. 25 6.1 PROGRAMMING OF THE AS5048 ................................................................................................. 25 6.1.1 Programming of the zero position ....................................................................................... 25 6.1.2 Programming sequence with verification ............................................................................. 25 6.2 DIAGNOSTIC FUNCTIONS OF THE AS5048 .................................................................................... 25 |
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