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AK09915 PDF даташит

Спецификация AK09915 изготовлена ​​​​«AKM» и имеет функцию, называемую «3-axis Electronic Compass».

Детали детали

Номер произв AK09915
Описание 3-axis Electronic Compass
Производители AKM
логотип AKM логотип 

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AK09915 Даташит, Описание, Даташиты
[AK09915]
AK09915
3-axis Electronic Compass
1. General Description
AK09915 is 3-axis electronic compass IC with high sensitive Hall sensor technology.
Small package of AK09915 incorporates magnetic sensors for detecting terrestrial magnetism in the X-axis,
Y-axis, and Z-axis, a sensor driving circuit, signal amplifier chain, and an arithmetic circuit for processing the
signal from each sensor. Self-test function is also incorporated. From its compact foot print and thin package
feature, it is suitable for map heading up purpose in GPS-equipped smart phone and tablet to realize pedestrian
navigation function.
2. Features
Functions:
3-axis magnetometer device suitable for compass application
Built-in A to D Converter for magnetometer data out
16-bit data out for each 3-axis magnetic component
Sensitivity: 0.15 µT/LSB (typ.)
Serial interface
I2C bus interface
Standard, Fast and High-speed modes (up to 2.5 MHz) compliant with Philips I2C
specification Ver.2.1
4-wire SPI
Operation mode
Power-down, Single measurement, Continuous measurement and Self-test
DRDY function for measurement data ready
Magnetic sensor overflow monitor function
Built-in oscillator for internal clock source
Power on Reset circuit
Self-test function with internal magnetic source
Built-in Noise Suppression Filter (NSF)
Selectable sensor drive
Low power drive / Low noise drive
Built-in magnetic sensitivity adjustment circuit
32 FIFO data buffer
Operating temperatures:
-30˚C to +85˚C
Operating supply voltage:
Analog power supply +1.7V to +3.6V
Digital Interface supply +1.65V to analog power supply voltage
Current consumption:
Power-down:
3 µA (typ.)
Measurement:
Average current consumption at 100 Hz repetition rate
Low power drive: 0.9 mA (typ.)
Low noise drive: 1.8 mA (typ.)
Package:
AK09915C 14-pin WL-CSP (BGA): 1.6 mm 1.6 mm 0.5 mm (typ.)
015006484-E-02
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2016/7









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AK09915 Даташит, Описание, Даташиты
[AK09915]
3. Table of Contents
1. General Description ...................................................................................................................................1
2. Features ......................................................................................................................................................1
3. Table of Contents .......................................................................................................................................2
4. Block Diagram and Functions....................................................................................................................4
5. Pin Configurations and Functions..............................................................................................................5
6. Absolute Maximum Ratings.......................................................................................................................6
7. Recommended Operating Conditions ........................................................................................................6
8. Electrical Characteristics ...........................................................................................................................6
8.1. DC Characteristics ..............................................................................................................................6
8.2. AC Characteristics ..............................................................................................................................7
8.3. Analog Circuit Characteristics ............................................................................................................8
8.4. 4-wire SPI............................................................................................................................................9
8.5. I2C Bus Interface ...............................................................................................................................10
9. Functional Descriptions ...........................................................................................................................13
9.1. Power States ......................................................................................................................................13
9.2. Reset Functions .................................................................................................................................13
9.3. Operation Modes...............................................................................................................................14
9.4. Description of Each Operation Mode ...............................................................................................15
9.4.1. Power-down Mode ....................................................................................................................15
9.4.2. Single Measurement Mode........................................................................................................15
9.4.3. Continuous Measurement Mode 1, 2, 3, 4, 5 and 6...................................................................16
9.4.4. Self-test Mode ...........................................................................................................................19
9.5. Noise Suppression Filter (NSF) ........................................................................................................19
9.6. Sensor Drive Select ...........................................................................................................................19
9.7. FIFO ..................................................................................................................................................20
9.7.1. Watermark .................................................................................................................................20
10. Serial Interface ......................................................................................................................................21
10.1. 4-wire SPI..........................................................................................................................................21
10.1.1. Writing Data ..............................................................................................................................21
10.1.2. Reading Data .............................................................................................................................22
10.2. I2C Bus Interface ...............................................................................................................................22
10.2.1. Data Transfer .............................................................................................................................22
10.2.2. WRITE Instruction ....................................................................................................................25
10.2.3. READ Instruction ......................................................................................................................25
10.2.4. High-speed Mode (Hs-mode) ....................................................................................................27
11. Registers................................................................................................................................................28
11.1. Description of Registers....................................................................................................................28
11.2. Register Map .....................................................................................................................................29
11.3. Detailed Description of Registers .....................................................................................................30
11.3.1. WIA: Who I Am ........................................................................................................................30
11.3.2. RSV: Reserved ..........................................................................................................................30
11.3.3. INFO: Information.....................................................................................................................30
11.3.4. ST1: Status 1 .............................................................................................................................30
11.3.5. HXL to HZH: Measurement magnetic data ..............................................................................31
11.3.6. TMPS: Dummy..........................................................................................................................32
11.3.7. ST2: Status 2 .............................................................................................................................32
11.3.8. CNTL1: Control 1 .....................................................................................................................33
11.3.9. CNTL2: Control 2 .....................................................................................................................34
11.3.10. CNTL3: Control 3 .....................................................................................................................34
11.3.11. TS1, TS2, TS3: Test ..................................................................................................................35
11.3.12. I2CDIS: I2C Disable ..................................................................................................................35
015006484-E-02
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2016/7









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AK09915 Даташит, Описание, Даташиты
[AK09915]
11.3.13. TS4: Test ...................................................................................................................................35
11.3.14. ASAX,ASAY,ASAZ: Dummy ..................................................................................................35
11.3.15. TPH1,TPH2,RR,SYT,DT: Test.................................................................................................36
12. Example of Recommended External Connection .................................................................................37
12.1. I2C Bus Interface ...............................................................................................................................37
12.2. 4-wire SPI..........................................................................................................................................38
13. Package .................................................................................................................................................39
13.1. Marking .............................................................................................................................................39
13.2. Pin Assignment .................................................................................................................................39
13.3. Outline Dimensions...........................................................................................................................40
13.4. Recommended Foot Print Pattern .....................................................................................................40
14. Relationship between the Magnetic Field and Output Code ................................................................41
IMPORTANT NOTICE ...................................................................................................................................42
015006484-E-02
-3-
2016/7










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