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PAJ7620U2数据手册(PAJ7620U2_GDS-R1.0_29032016_41002AEN).pdf

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    PAJ7620U2: Integrated Gesture Recognition Sensor
    General Description
    Key Features
    Applications
    Key Parameters
    Ordering Information
    List of Figures
    List of Tables
    1.0 Sensor Overview
    1.1 Gesture Mode
    1.2 Image Mode
    1.3 Architecture Block Diagram
    1.4 Signal Description
    1.5 Pin Configuration
    2.0 Mechanical Specifications
    2.1 Package Dimension
    2.2 Recommend Mechanical Design
    2.3 Recommended IR Ink Spectrum
    3.0 Reference Schematics
    4.0 Sensor Specifications
    4.1 Absolute Maximum Ratings, TA = 27 C
    4.2 Recommended Operating Condition
    4.3 Electrical Specifications, VDD=2.8V, TA = 27 C
    4.4 Gesture Functional Specifications
    4.5 Interface AC Specifications
    5.0 Register Tables
    5.1 Register Bank Select
    5.2 Image Size Setting
    5.3 Setting 30x30 Pixels Image Output Mode
    5.4 AE/AG Controls
    5.5 GPIO Setting
    5.6 Interrupt Controls
    5.7 Gesture Mode Controls
    5.8 Cursor Mode Controls
    5.9 Proximity Mode Controls
    5.10 EFuse Program Controls
    5.11 Background Controls
    5.12 Lens Shading Compensation
    5.13 LED Controls
    5.14 Sleep Mode
    5.15 Clock Controls
    5.16 Chip/Version ID
    5.17 Suspend/Reset
    5.18 Test Mode
    5.19 Reserved Registers List
    Document Revision History
    PixArt Imaging Inc. PAJ7620U2 General Datasheet Integrated Gesture Recognition Sensor PAJ7620U2: Integrated Gesture Recognition Sensor General Description The PAC7620 integrates gesture recognition function with general I2C interface into a single chip forming an image analytic sensor system. It can recognize 9 human hand gesticulations such as moving up, down, left, right, forward, backward, circle-clockwise, circle-counter clockwise, and waving. It also offers built-in proximity detection in sensing approaching or departing object from the sensor. The PAC7620 is designed with great flexibility in power-saving mechanism, well suit for low power battery operated HMI devices. The PAJ7620 is packaged into module form in-built with IR LED and optics lens as a complete sensor solution Key Features  Gesture/Cursor/Image modes  Built-in proximity detection  Gesture speed is 60~600°/s in Normal Mode and 60~1200°/s in Gaming Mode  Flexible power saving scheme  Communication interface options I2C (for Gesture/Cursor mode)   4-wire SPI (for Image mode) I2C interface up to 400 Kbit/s   SPI interface range from  22~48 MHz (Frame subtraction mode)  44~48 MHz (Raw data mode)  Ambient light immunity  Ambient light noise cancellation Applications  PAD Phone  Tablet Personal Computer  Automobile Application Key Parameters Parameter Array Size Pixel Size Max Frame Rate Input Clock Supply Voltage Current Consumption Value 60x60 pixels 20x20 µm2 720 fps @ 240 report rate 22MHz for SPI Image Out 44MHz for SPI raw data mode VDD: 2.8~3.6V VBUS: 1.8~3.3V VLED: 3.0~4.2V Operation State:2.82 mA Standby 1 State: 2.3mA Standby 2 State: 1.5mA Package Dimensions 5.2x3x1.88 mm3 Ordering Information Part Number Package Type PAJ7620U2 13-pins LGA Module For any additional inquiries, please contact us at http://www.pixart.com/contact.asp. Version 1.0 | 29 Mar 2016 | 41002AEN PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. 1
    PixArt Imaging Inc. Table of Contents PAJ7620U2 General Datasheet Integrated Gesture Recognition Sensor 1.1 1.2 1.3 1.4 1.5 2.1 2.2 2.3 3.0 4.0 PAJ7620U2: Integrated Gesture Recognition Sensor ............................................................................................................ 1 General Description .............................................................................................................................................................. 1 Key Features ......................................................................................................................................................................... 1 Applications .......................................................................................................................................................................... 1 Key Parameters ..................................................................................................................................................................... 1 Ordering Information ............................................................................................................................................................ 1 List of Figures ........................................................................................................................................................................... 3 1.0 Sensor Overview .......................................................................................................................................................... 4 Gesture Mode ......................................................................................................................................................... 4 Image Mode ............................................................................................................................................................ 4 Architecture Block Diagram ..................................................................................................................................... 4 Signal Description .................................................................................................................................................... 5 Pin Configuration ..................................................................................................................................................... 5 2.0 Mechanical Specifications ............................................................................................................................................ 6 Package Dimension ................................................................................................................................................. 6 Recommend Mechanical Design ............................................................................................................................. 7 Recommended IR Ink Spectrum .............................................................................................................................. 9 Reference Schematics ................................................................................................................................................ 10 Sensor Specifications ................................................................................................................................................. 11 Absolute Maximum Ratings, TA = 27°C .................................................................................................................. 11 Recommended Operating Condition ..................................................................................................................... 11 Electrical Specifications, VDD=2.8V, TA = 27°C ........................................................................................................ 12 Gesture Functional Specifications ......................................................................................................................... 13 Interface AC Specifications .................................................................................................................................... 13 Register Tables ........................................................................................................................................................... 14 Register Bank Select .............................................................................................................................................. 14 Image Size Setting ................................................................................................................................................. 14 Setting 30x30 Pixels Image Output Mode ............................................................................................................. 14 AE/AG Controls ...................................................................................................................................................... 15 GPIO Setting .......................................................................................................................................................... 15 Interrupt Controls .................................................................................................................................................. 16 Gesture Mode Controls ......................................................................................................................................... 17 Cursor Mode Controls ........................................................................................................................................... 20 Proximity Mode Controls ....................................................................................................................................... 20 EFuse Program Controls ........................................................................................................................................ 21 Background Controls ............................................................................................................................................. 22 Lens Shading Compensation .................................................................................................................................. 22 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 4.1 4.2 4.3 4.4 4.5 5.0 Version 1.0 | 29 Mar 2016 | 41002AEN PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. 2
    PixArt Imaging Inc. PAJ7620U2 General Datasheet Integrated Gesture Recognition Sensor 5.13 5.14 5.15 5.16 5.17 5.18 5.19 LED Controls .......................................................................................................................................................... 22 Sleep Mode ........................................................................................................................................................... 23 Clock Controls ........................................................................................................................................................ 24 Chip/Version ID...................................................................................................................................................... 24 Suspend/Reset ....................................................................................................................................................... 24 Test Mode ............................................................................................................................................................. 25 Reserved Registers List .......................................................................................................................................... 25 Document Revision History .................................................................................................................................................... 28 List of Figures Figure 1. Architecture Block Diagram ...................................................................................................................................... 4 Figure 2. PAJ7620U2 Module Pin Configuration (BTM VIEW) .................................................................................................. 5 Figure 3. PAJ7620U2 Package Outline Diagram ....................................................................................................................... 6 Figure 4. PAJ7620U2 Mechanical Design Guide ....................................................................................................................... 7 Figure 5. PAJ7620U2 Mechanical Design Guide (IR Ink Suggestion) ........................................................................................ 8 Figure 6. IR Ink Spectrum ......................................................................................................................................................... 9 Figure 7. PAJ7620U2 Application Circuit ................................................................................................................................ 10 List of Tables Table 1. Gesture Detecting Range and View Angle .................................................................................................................. 4 Table 2. Signal Description ....................................................................................................................................................... 5 Table 3. PAJ7620U2 Pin Definition ........................................................................................................................................... 5 Version 1.0 | 29 Mar 2016 | 41002AEN PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. 3
    PixArt Imaging Inc. PAJ7620U2 General Datasheet Integrated Gesture Recognition Sensor 1.0 Sensor Overview 1.1 Gesture Mode For Gesture Mode, there are 9 gestures recognition being embedded in the sensor including move up, move down, move left, move right, move forward, move backward, circle-clockwise, circle-counter clockwise, and wave. These gestures information can be simply accessed by register reading via I2C bus. The normal gesture detecting range from 5 to 15 cm from where PAC7620 is located through the operating view angle of diagonally 60° respectively. Additionally, The PAC7620 can be configured as Normal Mode (Gesture speed is 60°/s - 600°/s) or Gaming Mode (Gesture speed is 60°/s - 1200°/s) for different applications. The PAC7620 also offer built-in proximity detection for the purpose of sensing object approaching or departing. Table 1. Gesture Detecting Range and View Angle Part Number Detecting Range View Angle (Diagonal) PAJ7620U2 5 to 15 cm 60° Image Mode 1.2 For image mode, the typical report rate is 120Hz with image size equals 30x30 (Frame subtraction mode, WOI) or 30x30 (Raw data mode, WOI). The depth of pixel data depth is 9 bit and output through the SPI bus. The SCK rate of SPI bus equals to the external SPI clock input ranging from 22 to 48 MHz (Frame subtraction mode) or 44 to 48 MHz (Raw data mode). By programming the internal register set via I2C serial control bus, it performs on-chip report rate, exposure time, gain adjustment, array skip mode, and array average mode. 1.3 Architecture Block Diagram Figure 1. Architecture Block Diagram Version 1.0 | 29 Mar 2016 | 41002AEN PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. 4 Sensor Array9 bitA/DSPIMasterTiming Gen.Reg. BankI2CPower BlockSDASCLVDDGNDSPI_MCLKSPI_nCSSPI_SCKSPI_DATAFrame Buffer(Frame subtraction)30x30IR 940nm LEDLED Driver 1LED Driver 260x602x skipor2x2 averageorWOIVBUSVLEDObject ExtractionGesture RecognitionInterruptINT
    PAJ7620U2 General Datasheet Integrated Gesture Recognition Sensor PixArt Imaging Inc. 1.4 Signal Description Table 2. Signal Description Signal Name SDA SCL INT_N GPIO3(SPI_DATA) GPIO2(SPI_SCK) GPIO1(SPI_nCS) GPIO0(SPI_MCLK) Description I2C data pin I2C clk pin Interrupt pin (Active low) for Gesture Mode. Data out of SPI master for image mode SCK signal of SPI master for image mode nCS signal of SPI master for image mode External clock input of SPI master for image mode 1.5 Pin Configuration Table 3. PAJ7620U2 Pin Definition Pin No. 1 2 3 4 5 6, 10 7 8 9 11 12 13 Symbol VBUS SDA INT_N TESTMD SCL GND Type POWER IN/OUT OUT IN IN GND GPIO3 (SPI_DATA) GPIO2 (SPI_SCK) GPIO1 (SPI_nCS) VLED VDD GPIO0 (SPI_MCLK) SPI Mode : OUT GPIO Mode : IN/OUT SPI Mode : OUT GPIO Mode : IN/OUT SPI Mode : OUT GPIO Mode : IN/OUT POWER POWER SPI Mode : IN GPIO Mode : IN/OUT Function BUS power supply I2C data pin (Open Drain) Interrupt pin (Active low) (Open Drain) For Module Test Only I2C clock pin (Open Drain) Ground SPI Mode : Data out of SPI master GPIO Mode : GPIO SPI Mode : SCK signal of SPI master GPIO Mode : GPIO SPI Mode : Chip select signal of SPI master (Active Low) GPIO Mode : GPIO LED power input Main power supply SPI Mode : External clock input for SPI GPIO Mode : GPIO Figure 2. PAJ7620U2 Module Pin Configuration (BTM VIEW) Version 1.0 | 29 Mar 2016 | 41002AEN PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. 5 10981234576131211Pin.1 ID
    PixArt Imaging Inc. 2.0 Mechanical Specifications 2.1 Package Dimension PAJ7620U2 General Datasheet Integrated Gesture Recognition Sensor Figure 3. PAJ7620U2 Package Outline Diagram Version 1.0 | 29 Mar 2016 | 41002AEN PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. 6
    PixArt Imaging Inc. 2.2 Recommend Mechanical Design PXI suggest mechanical design as below to optimize the performance. PAJ7620U2 General Datasheet Integrated Gesture Recognition Sensor Note: 1. Recommended Cover Glass Material: Glass or PC 2. Clear Glass Part Transparency: > 90% 3. Cover Glass Thickness  0.7mm 4. Cover Glass and PAJ7620U2 are close as much as possible. Air Gap  0.2mm Figure 4. PAJ7620U2 Mechanical Design Guide Version 1.0 | 29 Mar 2016 | 41002AEN PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. 7 Gesture ModulePCB/FPCCover GlassAir Gap ≤ 0.2mm≤ 0.7mm PixArt Imaging Inc.
    PixArt Imaging Inc. PAJ7620U2 General Datasheet Integrated Gesture Recognition Sensor Note: 1. If thickness of cover glass  0.7mm, and Air Gap  0.2mm, the black Ink region is not necessary. 2. For appearance reason, Ink on cover may be necessary. Please follow the IR Ink spectrum above Figure 5. PAJ7620U2 Mechanical Design Guide (IR Ink Suggestion) Version 1.0 | 29 Mar 2016 | 41002AEN PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. 8 Gesture ModulePCB/FPCCover GlassAir Gap ≤ 0.2mm≤ 0.7mm PixArt Imaging Inc.2.7±0.1mmØ >= 1.2mmØ >= 1.8mmBlack Ink Region (Opaque)Clear Glass for Gesture SensorIR Ink or Clear Glass for IR LED
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