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PAN3401DK Datasheet(PDF) 3 Page - Pixart Imaging Inc. |
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PAN3401DK Datasheet(HTML) 3 Page - Pixart Imaging Inc. |
3 / 15 page PixArt Imaging Inc. PAN3401 PS/2 Optical Mouse Single Chip All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission . 3 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw V1.3, Mar. 2008 2. Block Diagram and Operation DIGITAL SIGNAL PROCESSOR POWER ON RESET LED DRIVE CLOCK DATA OSCILLATOR LED VREF VDD PS/2 INTERFACE VOLTAGE REFERENCE 5V POWER VSS CMOS IMAGE SENSOR INTERNAL OSC_RES PS/2 MOUSE CONTROLLER Z1 Z2 WHEEL BR BL BM BUTTON Figure 3. Block Diagram The PAN3401 is a CMOS process optical mouse sensor single chip with PS/2 interface that serves as a non- mechanical motion estimation engine for implementing a computer mouse. It is based on new optical navigation technology, which measures changes in position by optically acquiring sequential surface images (frames) and mathematically determining the direction and magnitude of movement. The sensor is in a 12-pin optical package and comes with the resolution of 400/800/1000 counts per inch (CPI) and the rate of motion up to 28 inches per second. It is also featured crystal-less (Internal ± 10% accurate oscillator) to save customer’s BOM cost. The PAN3401 includes PS/2 interface so that no mouse controller is needed to interface through PS/2. The PAN3401 can receive command and echo status or data format which are compatible with IBM ® PS/2 mouse and Microsoft ® 3D PS/2 mouse. |
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