Electronic Components Datasheet Search |
|
PAW3601DH-NF Datasheet(PDF) 4 Page - Pixart Imaging Inc. |
|
PAW3601DH-NF Datasheet(HTML) 4 Page - Pixart Imaging Inc. |
4 / 35 page PixArt Imaging Inc. PAW3601DH-NF CMOS Laser Mouse Sensor All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission . 4 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw V2.2, Aug. 2007 2. Block Diagram and Operation CMOS IMAGE SENSOR DIGITAL SIGNAL PROCESSOR POWER ON RESET SERIAL INTERFACE LD DRIVE CONTROL REGISTER SCLK SDIO OSCILLATOR YA YB XA XB LD PD VDD VSSD OSCIN OSCOUT SERIAL INTERFACE QUADRATURE OUTPUTS RESONATOR 3.3V POWER VSS_LD VSSA VDDD VDDA 5.0V POWER CPI CTRL CPI Figure 3. Block Diagram In the traditional optical mouse, it uses LED as a light source. The light illuminates on the working surface and generates the bright and dark shadow that shows the micro-texture of the surface. The imaging sensor in the optical mouse chip captures sequential this micro-texture images of the working surface. Based on the captured images, the optical chip can determine the speed and direction when the optical mouse is moving. Thus, for the more rough surface, the more obvious shadow image will be generated and much easier to determine the movement and direction. The PAW3601DH-NF is a CMOS laser mouse sensor with DSP integration chip that serves as a non-mechanical motion estimation engine for implementing a computer mouse. It is based on new laser speckle navigation technology. In the laser mouse, it uses laser diode (LD), specially uses VCSEL (Vertical Cavity Surface Emitting Laser) as light source, where laser is one kind of coherent light. When this light illuminates on the working surface, the surface will reflect and diffuse the incident light and generates speckle pattern. The imaging sensor in the laser mouse chip detects the speckle pattern that generated from the working surface and determines the movement and direction. Since the speckle pattern can be generated on the most of the surface if this surface is not perfect smooth or transparent, the laser mouse can adapt on more surfaces as compared with traditional LED- based optical mouse. The mouse sensor is in a 20-pin optical package. The output format is two-channel quadrature (X and Y direction), which emulates encoder phototransistors. The current X and Y information are also available in registers accessed via a serial port. The word "mouse sensor," instead of PAW3601DH-NF, is used in the document. |
Similar Part No. - PAW3601DH-NF |
|
Similar Description - PAW3601DH-NF |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |