PAW3512DK SERIES PAW3512DK SERIES USB OPTICAL MOUSE SINGLE CHIP General Description The PAW3512DK is an ultra low cost CMOS process optical mouse sensor single chip with USB interface that serves as a non-mechanical motion estimation engine for implementing a computer mouse. The PAW3512DK also embedded internal RC function to replace external resonator for BOM cost reduction and supported flexibility function change by programmer for easy and fast production. Key Specification Features USB interface Power Supply Wide operating supply range 4.25V ~ 5.5V Interface USB Optical Lens 1:1 System Clock 24.000 MHz Speed 28 inches/sec Single power supply Optical motion estimation technology Complete 2-D motion sensor Accurate motion estimation over a wide range of surfaces High speed motion detection up to 28 inches/sec Power saving mode during times of no movement Supports three buttons (R, M, L) and three axes Acceleration (X, Y, Z) output Resolution Z-axis support mechanical input Internal RC oscillation without external resonator Frame Rate USB spec. ¾ Complete Universal Serial Bus specs V1.1 Operating Current compatibility ¾ Complete USB HID specs V1.11 compatibility Package ¾ Integrated USB transceiver and 1.5Mbps USB serial interface engine 8g 1000 CPI 3000 frames/sec 10mA @Mouse moving (Normal) 5mA @Mouse not moving (Sleep) 480uA @USB suspend (Suspend) Shrunk DIP12 Flexibility function change Ordering Information Part Number Sensor Rotate CPI Interface PAW3512DK-TJZA 0˚ 1000 U+P PAW3512DK-TJYA 0˚ 1000 U All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 1 V1.0 Oct. 2010 PixArt Imaging Inc. PAW3512DK Series USB Optical Mouse Sensor Single Chip 1. Pin Configuration 1.1 Pin Description Pin # Name Type Definition 1 BL IN Button left key input, normal pull-high, press connect to low 2 LED I/O LED control 3 VDDQ BYPASS I/O voltage reference 4 VSS GND Chip ground 5 VDD5V PWR Chip power VDD, 5.0V 6 VDDA BYPASS Analog voltage reference 7 D+/CLK I/O USB D+ or PS/2 mouse clock line 8 D-/DATA I/O USB D- or PS/2 mouse data line 9 BR IN Button right key input, normal pull-high, press connect to low 10 BM IN Button middle key input, normal pull-high, press connect to low 11 Z2 IN Z axis, support mechanical scroller input 12 Z1 IN Z axis, support mechanical scroller input 1.2 Pin Assignment for Sensor Rotate 0˚, +90˚, -90˚, 180˚ Figure 1. Top View Pinout All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 2 V1.0 Oct. 2010 PixArt Imaging Inc. PAW3512DK Series USB Optical Mouse Sensor Single Chip Figure 2. Top View of Mouse 2. Block Diagram and Operation VOLTAGE REGULATOR AND POWER CONTROL LED POWER ON RESET LED DRIVE CMOS IMAGE SENSOR WHEEL Z1 Z2 Z-AXIS COUNTER BL BUTTON BM DEBOUNCE BR USB INTERFACE D+ D- DIGITAL SIGNAL PROCESSOR VDD5V VSS VDDA VDDQ 5V POWER VOLTAGE REFERENCE Internal RC USB MOUSE CONTROLLER Figure 3. Block Diagram The PAW3512DK supports X, Y, Z three axes, and L, R, M three buttons under USB mode. It is a CMOS process optical mouse sensor single chip with USB interface that serves as a non-mechanical motion estimation engine for implementing a computer mouse. The PAW3512DK is in a 12-pin optical package and comes with the resolution of 1000 counts per inch (CPI) and the rate of motion up to 28 inches per second. It includes USB interface so that no mouse controller is needed to interface through USB. The PAW3512DK can receive command and echo status or data format, both complete Universal Serial Bus® spec V1.1 and USB HID spec V1.11 compatibility. It is also a cost effective solution to support USB Mouse. All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 3 V1.0 Oct. 2010 PixArt Imaging Inc. PAW3512DK Series USB Optical Mouse Sensor Single Chip 3. Referencing Application Circuit 3.1 3D3B Application Circuit ENSW1 U1 BL VDD_5V R1 D1 1 LED + C4 2 1uF 3 4 VDD_5V R6 10 ohm 5 6 C1 VDD_5V Z1 Z1 BL Z2 LED VDDQ BM VSS BR VDD5V D- VDDA D+ C3 12 Z2 COM C5 11 10 BM 9 BR 0.1uF C2 10uF Shield R4 33 ohm R5 7 33 ohm C7 + 0.1uF 1uF PAW3512 27pF JP1 VBUS GND 8 C6 + DD+ USB CABLE 27pF Note: 1. R4,R5,C6,C7 are for EMC immunity 2. USB cable connector JP1 is suggested to has the pin sequence like this: VBUS, GND, Shield, D-, D+ Figure 4. Application Circuit for PAW3512DK All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. PixArt Imaging Inc. E-mail: [email protected] 4 V1.0 Oct. 2010