AK9752 Datasheet, PDF (2/36 Pages) Asahi Kasei Microsystems – Ultra-small IR sensor IC with IC

3. Table of Contents
[AK9752]
1. General Description ............................................................................................................................ 1
2. Features .............................................................................................................................................. 1
3. Table of Contents ................................................................................................................................ 2
4. Block Diagram and Functions ............................................................................................................. 4
4.1. Block Diagram.............................................................................................................................. 4
4.2. Functions ..................................................................................................................................... 4
5. Pin Configurations and Functions ....................................................................................................... 5
5.1. Pin Configurations ....................................................................................................................... 5
5.2. Functions ..................................................................................................................................... 5
6. Absolute Maximum Ratings ................................................................................................................ 6
7. Recommended Operating Conditions................................................................................................. 6
8. Power Supply Conditions .................................................................................................................... 6
9. Electrical Characteristics..................................................................................................................... 7
9.1. Analog Characteristics ................................................................................................................. 7
9.2. Digital Characteristics .................................................................................................................. 7
9.2.1. DC Characteristics................................................................................................................ 7
9.2.2. AC Characteristics (1): Standard Mode (100 kHz)............................................................... 8
9.2.3. AC Characteristics (2): Fast Mode (400 kHz) ...................................................................... 8
9.2.4. AC Characteristics (3): INTN................................................................................................ 9
10. Functional Descriptions ................................................................................................................. 10
10.1. Power Supply States.............................................................................................................. 10
10.2. Reset functions ...................................................................................................................... 10
10.3. Operating Mode ..................................................................................................................... 10
10.4. Descriptions for each Operating Mode ...................................................................................11
10.4.1. Stand-by Mode (MODE [1:0] = “00”) ...............................................................................11
10.4.2. Continuous Mode (MODE [1:0] = “01”)............................................................................11
10.4.3. Single Shot Mode (MODE [1:0] = “10”) ...........................................................................11
10.5. Read Measurement Data ....................................................................................................... 12
10.5.1. Normal Read-out Procedure........................................................................................... 12
10.5.2. Read-out Data during a measurement Period................................................................ 13
10.5.3. Skipping Data.................................................................................................................. 13
10.5.4. End Operation ................................................................................................................. 14
10.5.5. Example of Read-out Procedure .................................................................................... 14
11. Serial Interface .............................................................................................................................. 16
11.1. Data Transfer.......................................................................................................................... 16
11.1.1. Changing state of the SDA line .......................................................................................... 16
11.1.2. Start / Stop Conditions ....................................................................................................... 16
11.1.3. Acknowledge ...................................................................................................................... 17
11.1.4. Slave Address..................................................................................................................... 18
11.1.5. Write Command.................................................................................................................. 18
11.1.6. Read Command ................................................................................................................. 19
12. Memory Map.................................................................................................................................. 20
13. Registers Functional Descriptions................................................................................................. 21
14. Spectrum Sensitivity (Reference).................................................................................................. 29
15. Field of View (Reference).............................................................................................................. 30
16. IR sensor output (Reference) ........................................................................................................ 31
17. Recommended External Circuits................................................................................................... 32
18. Package......................................................................................................................................... 33
18.1. Outline Dimensions ..................................................................................................................... 33
18.2. Pad dimensions ........................................................................................................................... 34
18.3. Marking ........................................................................................................................................ 35
19. Ordering Guide .............................................................................................................................. 35
016016473-E-00
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2017/1