AS5050-EQFT Просмотр технического описания (PDF) - austriamicrosystems AG

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AS5050-EQFT

Low Power 10-Bit Magnetic Rotary Encoder

austriamicrosystems AG 

AS5050

Datasheet - Contents

Contents

1 General Description .................................................................................................................................................................. 1

2 Key Features............................................................................................................................................................................. 1

3 Applications............................................................................................................................................................................... 1

4 Pin Assignments ....................................................................................................................................................................... 3

4.1 Pin Descriptions.................................................................................................................................................................................... 3

5 Absolute Maximum Ratings ...................................................................................................................................................... 4

6 Electrical Characteristics........................................................................................................................................................... 5

6.1 Operating Conditions............................................................................................................................................................................ 5

6.2 System Parameters .............................................................................................................................................................................. 5

6.3 DC/AC Characteristics.......................................................................................................................................................................... 5

7 Detailed Description.................................................................................................................................................................. 6

7.1 Operating Modes .................................................................................................................................................................................. 6

7.1.1 Power Supply Filter...................................................................................................................................................................... 6

7.1.2 Reading an Angle ........................................................................................................................................................................ 7

7.1.3 Low Power Mode ......................................................................................................................................................................... 7

7.1.4 Interrupt Chaining ........................................................................................................................................................................ 7

7.2 SPI Communication.............................................................................................................................................................................. 8

7.2.1 Command Package ..................................................................................................................................................................... 8

7.2.2 Read Package (Value Read from AS5050) ................................................................................................................................. 8

7.2.3 Write Data Package (Value Written to AS5050) .......................................................................................................................... 9

7.2.4 Register Block.............................................................................................................................................................................. 9

7.2.5 SPI Interface Commands........................................................................................................................................................... 10

8 Application Information ........................................................................................................................................................... 14

8.1 SPI Interface....................................................................................................................................................................................... 14

8.1.1 SPI Interface Signals (4-Wire Mode, Wire_mode = 1)............................................................................................................... 14

8.1.2 SPI Timing ................................................................................................................................................................................. 15

8.1.3 SPI Connection to the Host µC ................................................................................................................................................. 16

8.2 Placement of the Magnet.................................................................................................................................................................... 17

9 Package Drawings and Markings ........................................................................................................................................... 19

10 Ordering Information............................................................................................................................................................. 21

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