AsahiKASEI AK8975 Manuals

Manuals and User Guides for AsahiKASEI AK8975. We have 1 AsahiKASEI AK8975 manual available for free PDF download: Manual

AsahiKASEI AK8975 Manual

AsahiKASEI AK8975 Manual (34 pages)

3-axis Electronic Compass

Brand: AsahiKASEI | Category: Compass | Size: 0 MB

Table of Contents

1 Features

1
2 Overview

2
3 Table of Contents

3
4 Circuit Configuration

5
- Block Diagram
  5
- Block Function
  5
- Pin Function
  6
5 Overall Characteristics

7
6 Functional Explanation

11
- Power States
  11
- Reset Functions
  11
- Operation Modes
  12
- Description of each Operation Mode
  13
  - Power-Down Mode
    13
  - Single Measurement Mode
    13
    
    Data Ready
    13
    
    Data Error
    14
    
    Magnetic Sensor Overflow
    14
  - Self-Test Mode
    15
  - Fuse ROM Access Mode
    15
7 Serial Interface

16
- 4-Wire SPI
  16
  - Writing Data
    16
  - Reading Data
    17
- I 2 C Bus Interface
  18
  - Data Transfer
    18
    
    Change of Data
    18
    
    Start/Stop Condition
    18
    
    Acknowledge
    19
    
    Slave Address
    19
  - WRITE Instruction
    20
  - READ Instruction
    21
    
    One Byte READ
    21
    
    Multiple Byte READ
    21
8 Registers

22
- Description of Registers
  22
- Register Map
  23
- Detailed Description of Registers
  24
  - WIA: Device ID
    24
  - INFO: Information
    24
  - ST1: Status 1
    24
  - HXL to HZH: Measurement Data
    25
  - ST2: Status 2
    26
  - CNTL: Control
    26
  - RSV: Reserved
    27
  - ASTC: Self Test Control
    27
  - TS1, TS2: Test 1, 2
    27
  - I2CDIS: I C Disable
    27
  - ASAX, ASAY, ASAZ: Sensitivity Adjustment Values
    28
9 Example of Recommended External Connection

29
- I 2 C Bus Interface
  29
- 4-Wire SPI
  30
10 Package

31
- Marking
  31
- Pin Assignment
  31
- Outline Dimensions
  32
- Recommended Foot Print Pattern
  33
11 Relationship between the Magnetic Field and Output Code

34

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