Maker : PixArt Imaging
Part No. : PAN3401

Datasheet PDF : PAN3401.pdf
Cross Reference : PAN3401 Cross Reference
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www.DataSheet4U.com PAN3401 PAN3401 PS/2 OPTICAL MOUSE SINGLE CHIP General Description The PAN3401 is a CMOS process optical mouse sensor single chip with PS/2 interface that serves as a nonmechanical motion estimation engine for implementing a computer mouse. Features Single 5.0 volt power supply Compatible with Microsoft® Intelli 3D PS/2 Power Supply and IBM® PS/2 mouse Precise optical motion estimation technology Complete 2-D motion sensor No mechanical parts Accurate motion estimation over a wide range of surfaces Speed 28 inches/sec 20g 400/800/1000 CPI 3000 frames/sec 12 mA @Mouse moving (Normal) 5 mA @Mouse not moving (Sleep) Shrunk DIP12 Acceleration High speed motion detection up to 28 inches/sec Resolution High resolution up to 1000 CPI Frame Rate Power saving mode during times of no movement Operating Support three buttons (R, M, L) and three Current axes (X, Y, Z) Package Z axis support mechanical input Internal ± 10% accurate oscillator, external crystal-less Interface Optical Lens Key Specification Wide operating supply range 4.4V ~ 5.5V PS/2 1:1 Ordering Information Part Number CPI PAN3401DK PAN3401DK-TD PAN3401DK-TJ 800 400 1000 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 1 V1.3, Mar. 2008 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN3401 www.DataSheet4U.com PS/2 Optical Mouse Single Chip 1. Pin Configuration 1.1 Pin Description Pin # Name 1 2 3 4 5 6 7 8 9 10 11 12 BL LED Type IN OUT Definition Button left key input, internal pull-up 50K ohm, press connect to low LED control Connect to resistor input Chip ground Chip power VDD, 5.0V OSC_RES IN VSS VDD5V VREF CLOCK DATA BR BM Z2 Z1 GND PWR BYPASS Analog voltage reference I/O I/O IN IN IN IN PS/2 mouse clock line PS/2 mouse data line Button right key input, internal pull-up 50K ohm, press connect to low Button middle key input, internal pull-up 50K ohm, press connect to low Z axis, support mechanical scroller input, internal pull-down 50K ohm Z axis, support mechanical scroller input, internal pull-down 50K ohm 1.2 Pin Assignment LB 1 2 3 4 5 6 12 11 10 9 8 7 RB +Y 1 6 12 7 +X Figure 1. Top View Pinout Figure 2. Top View of Mouse All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 2 V1.3, Mar. 2008 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw PixArt Imaging Inc. PAN3401 www.DataSheet4U.com PS/2 Optical Mouse Single Chip 2. Block Diagram and Operation LED LED DRIVE Z-AXIS COUNTER POWER ON RESET VOLTAGE REGULATOR AND POWER CONTROL CMOS IMAGE SENSOR VDD 5V POWER VSS WHEEL Z1 Z2 BL BUTTON BM BR DEBOUNCE DIGITAL SIGNAL PROCESSOR VREF VOLTAGE REFERENCE PS/2 INTERFACE CLOCK DATA PS/2 MOUSE CONTROLLER INTERNAL OSCILLATOR OSC_RES Figure 3. Block Diagram The PAN3401 is a CMOS process optical mouse sensor single chip with PS/2 interface that serves as a nonmechanical 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. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 3 V1.3, Mar. 2008 PixArt Imaging...

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