AS5030 8-bit Programmable Magnetic Rotary Encoder

Rev. 1.8

www.austriamicrosystems.com

Page 31 of 33

Table of contents

1

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

1.1

Benefits.................................................................................................................................................................. 1

1.2

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

1.3

Applications............................................................................................................................................................ 1

1.4

Block Diagram ........................................................................................................................................................ 1

2

Package and Pinout ....................................................................................................................................................... 2

3

AS5030 Parameter and Features List .............................................................................................................................. 3

4

General Device Specifications ........................................................................................................................................ 4

4.1

Absolute Maximum Ratings (non operating) ............................................................................................................. 4

4.2

Operating Conditions .............................................................................................................................................. 4

4.3

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

4.4

Magnet Specifications ............................................................................................................................................. 6

4.5

Magnetic Field Alarm Limits .................................................................................................................................... 6

4.6

Hall Element sensitivity options ............................................................................................................................... 6

4.7

Programming parameters ........................................................................................................................................ 7

4.8

DC Characteristics of Digital Inputs and Outputs ...................................................................................................... 7

4.9

8-bit PWM Output ................................................................................................................................................... 7

4.10

Serial 8-bit Output ............................................................................................................................................... 8

4.11

General Data Transmission Timings ..................................................................................................................... 8

4.12

Connecting the AS5030 ....................................................................................................................................... 9

4.13

Serial 3-Wire R/W Connection.............................................................................................................................. 9

4.14

Serial 3-Wire Read-only Connection..................................................................................................................... 9

4.15

Serial 2-Wire Connection (R/W Mode) ................................................................................................................ 10

4.16

Serial 2-wire Continuous Readout ...................................................................................................................... 11

4.17

Serial 2-Wire Differential SSI Connection ........................................................................................................... 11

4.18

1-Wire PWM Connection .................................................................................................................................... 12

4.19

Analog Output ................................................................................................................................................... 13

4.20

Analog Sin/Cos outputs with external interpolator ............................................................................................... 13

4.21

3-Wire Daisy Chain Mode .................................................................................................................................. 14

4.22

2-Wire Daisy Chain Mode .................................................................................................................................. 14

5

AS5030 Programming .................................................................................................................................................. 15

5.1

Programming Options ........................................................................................................................................... 15

5.2

AS5030 Read / Write Commands ........................................................................................................................... 16

5.3

OTP Programming Connection............................................................................................................................... 17

5.4

Programming Verification ...................................................................................................................................... 18

6

AS5030 Status Indicators ............................................................................................................................................. 18

6.1

C2 Status Bit ........................................................................................................................................................ 18

6.2

Lock Status Bit ..................................................................................................................................................... 18

6.3

Magnetic Field Strength Indicators......................................................................................................................... 18

6.4

“Pushbutton” Feature ............................................................................................................................................ 19