Details, datasheet, quote on part number: AK9750
PartAK9750
Category
TitleIC SENSOR 4CHH INFRARED 10SON
Description

AKM’s AK9750 is an ultra-low power and compact infrared-ray (IR) sensor module. It integrates four quantum IR sensors and a signal processing IC. The four IR sensors’ offset and gain variations are calibrated at shipment making system calibration not necessary by users. An integral analog-to-digital converter provides 16-bits data outputs. The AK9750 achieves human detection function easily because it employs a PIR (passive infrared ray) type infrared-ray sensor and includes a field of view limiter as well as an optical filter in order to limit detection area. This device can detect human presence not only in motion but also not in motion because it converts an IR of human body to electrical signal directly.



CompanyAKM Semiconductor, Inc.
DatasheetDownload AK9750 datasheet
  
AK9750 photo

 

Features, Applications

1. General Description The is an ultra-low power and compact infrared-ray (IR) sensor module. It is composed of four quantum IR sensors and an integrated circuit (IC) for characteristic compensation. The four IR sensors' offset and gain variations are calibrated at shipment. An integral analog-to-digital converter provides 16-bits data outputs. Additional integrated features include a field of view limiter and an optical filter. The AK9750 is suitable for applications including stationary human detection.

Quantum-type IR Sensor with Four IR Elements 16-bits Digital Outputs to I2C bus Integrated temperature sensor: Interrupt Function INT pin can be used as a read-trigger or an interrupt request of signal level monitoring. Built in Switch Mode (Standalone Mode) By writing the threshold into the internal EEPROM at the customer's production testing, the presence detection state will be output to the INT pin. In this mode, neither the control by I2C bus nor Host MCU is necessary. Low Voltage Operation: Low Current Consumption: Small and Thin Package: VDD: ~ 3.63V DVDD: 1.65V ~ VDD Max. 100 µA (@Continuous Mode "0") Max. 1µA Power down Mode) 10-pin SON Built in a field of view limiter and an optical filter ~ 60ºC output on I2C bus

General Description............................................................................................................................ 1 Features.............................................................................................................................................. 1 Table of Contents................................................................................................................................ 2 Block Diagram and Functions............................................................................................................. 4 4.1. Block Diagram.............................................................................................................................. 4 4.2. Block Functions............................................................................................................................ 4 5. Pin Configurations and Functions....................................................................................................... 5 5.1. Pin Configurations....................................................................................................................... 5 5.2. Pin Functions............................................................................................................................... 6. IR Sensors Configuration / Observable Area...................................................................................... 6.1. IR Sensor's Configurations.......................................................................................................... 6.2. IR Sensor's Observable Area...................................................................................................... 6 7. Absolute Maximum Ratings................................................................................................................ 7 8. Recommended Operating Conditions................................................................................................. 7 9. Power Supply Conditions.................................................................................................................... 8 10. Electrical Characteristics................................................................................................................. 9 10.1. Analog Characteristics............................................................................................................. 9 10.2. Digital Characteristics............................................................................................................ 10 10.2.1. EEPROM......................................................................................................................... 10.2.2. DC Characteristics.......................................................................................................... 10.2.3. AC Characteristics (1): Standard Mode 10.2.4. AC Characteristics (2): Fast Mode kHz)..................................................................11 11. Functional Descriptions................................................................................................................. 13 11.1 Power Supply States................................................................................................................. 13 11.2 Reset functions.......................................................................................................................... 13 11.3 Operating Mode......................................................................................................................... 14 11.3.1. Normal Mode/Switch Mode................................................................................................ 14 11.3.2. Normal Mode...................................................................................................................... 15 11.3.3. Switch Mode....................................................................................................................... 16 11.4 Descriptions for each Operating Mode...................................................................................... 17 11.4.1. Power down Mode (PDN pin= "L")..................................................................................... 17 11.4.2. Stand-by Mode (EMODE EEPROM Access Mode (EMODE = "001" and EEPMODE= 17 11.4.4. Single Shot Mode (EMODE Continuous Mode 0 (EMODE Continuous Mode 1,2,3 (EMODE Read Measurement Data........................................................................................................... 19 11.5.1. Normal Read-out Procedure.............................................................................................. 19 11.5.2. Read-out Data within a measurement Period.................................................................... 20 11.5.3. Skipping Data..................................................................................................................... 20 11.5.4. End Operation.................................................................................................................... 21 11.5.5. Example of Read-out Procedure........................................................................................ 21 12. Serial Interface.............................................................................................................................. 23 12.1. Data Transfer.......................................................................................................................... 23 12.1.1. Changing state of the SDA line....................................................................................... 23 12.1.2. Start / Stop Conditions.................................................................................................... 23 12.1.3. Acknowledge................................................................................................................... 24 12.1.4. Slave Address................................................................................................................. 25 12.1.5. WRITE Command........................................................................................................... 26 12.1.6. READ Command............................................................................................................ 27 12.1.7. EEPROM Write Timing................................................................................................... 28 13. Memory Map.................................................................................................................................. 29 14. Registers Functional Descriptions................................................................................................. 31 15. EEPROM Functional Descriptions................................................................................................ 015002896-E-01 -22015/10

[AK9750] 16. First data Determination Time....................................................................................................... 41 17. Data Sampling Period................................................................................................................... 41 18. Sensor's Output (Reference)........................................................................................................ 42 19. Spectrum Sensitivity (Reference).................................................................................................. 42 20. Field of View (Reference).............................................................................................................. 43 21. Recommended External Circuits................................................................................................... 44 22. Package......................................................................................................................................... 45 22.1. Outline Dimensions................................................................................................................ 45 22.2. Pad Dimensions..................................................................................................................... 46 22.3. Marking................................................................................................................................... 47 23. Ordering Guide.............................................................................................................................. 48 24. Revision History............................................................................................................................. 48 IMPORTANT NOTICE.......................................................................................................................... 49


 

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