PAW3502 PIXART | Alldatasheet
Document overview
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Technical content
Features
USB interface 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 savin g mo de durin g times of no movement Supports three buttons (R, M, L) and three axes (X, Y, Z) output Z-axis support mechanical input (Z/2) USB spec. ¾ Complete Universal Serial Bus spec s V1.1 compatibility ¾ Complete USB HID specs V1.1 compatibility ¾ Integrated USB transceive r and 1.5Mbps USB serial interface engine Key Specification 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 Acceleration 20g Resolution 400/800/1000/1200 CPI Frame Rate 3000 frames/sec Operating Current 10mA @Mouse moving (Normal) 5mA @Mouse not moving (Sleep) 480uA @USB suspend (Suspend)
Ordering Information
E-mail: fae_service@pixart.com.tw V0.2 Dec. 2006
1.1 Pin Description
1 OSCIN IN Oscillator input, connected to resonator or resistor
2 BL IN Button left key input, normal pull-high (50k), press connect to low
3 LED OUT LED control
4 VDDQ BYPASS I/O voltage reference
5 VSS GND Chip ground
7 VDDA BYPASS Analog voltage reference
8 D+ I/O USB D+
9 D- I/O USB D-
10 BR IN Button right key input, normal pull-high (50k), press connect to low
11 BM IN Button middle key input, normal pull-high (50k), press connect to low
12 Z2 IN Z axis, support mechanical scroller input
13 Z1 IN Z axis, support mechanical scroller input
14 OSCOUT OUT Oscillator output, connected to resonator
1.2 Pin Assignment
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.
- Block Diagram and Operation
24 MHZ
Figure 3. Block Diagram for implementing a computer mouse. 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. PAW3502 USB Optical Mouse Sensor Single Chip 3. Specifications
3.1 Absolute Maximum Ratings
Exposure to absolute maximum rating may affect device reliability. Symbol Parameter Min. Max. Unit Notes TSTG Storage Temperature -40 85 °C TA Operating Temperature -15 55 °C Lead Solder Temp 260 °C For 10 seconds, 1.6 mm below seating plane. ESD 2 kV All pins, human body model MIL 883 Method 3015 VDC DC Supply Voltage -0.5 5.5 V VIN DC Input Voltage -0.5 5.5 V All I/O pin
3.2 Recommend Operating Condition
Symbol Parameter Min. Typ. Max. Unit Notes TA Operating Temperature 0 40 °C VDD Power Supply Voltage 4.25 5.0 5.5 V VN Supply Noise 100 mV Peak to peak within 0 - 80 MHz Z Distance from Lens Reference Plane to Surface 2.3 2.4 2.5 mm Refer to Figure 4. R Resolution 400 1200 CPI A Acceleration 20 g FCLK Clock Frequency 24 MHz FR Frame Rate 3000 frames/sec S Speed 0 28 inches/sec 28 inches/sec @400CPI 20 inches/sec @800CPI 16 inches/sec @1000CPI 13 inches/sec @1200CPI 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: fae_service@pixart.com.tw V0.2 Dec. 2006
PixArt Imaging Inc. PAW3502 USB Optical Mouse Sensor Single Chip 5. USB Interface
5.1 USB Command Set Description (USB Descriptor)
The USB HOST detects USB mouse device plug-in and assigns a new unique address to the USB mouse device, then asking USB mouse device for information about the device description, configuration description, and assigning a configuration value for USB mouse device during enumeration period. After enumeration, the USB mouse device is able to transfer motion and button value to the USB host. Descriptor Type Byte Byte Byte Byte Byte Byte Byte Byte 12 01 10 01 00 00 00 08 3A 09 10 25 00 01 01 02 Device Descriptor (18 bytes) 00 01 09 02 22 00 01 01 04 A0 Configuration Descriptor (9 bytes) 32 09 04 00 00 01 03 01 02 Interface Descriptor (9 bytes) 00 09 21 10 01 00 01 22 3E Human Interface Device Descriptor (9 bytes) 00 Endpoint Descriptor (7 bytes) 07 05 81 03 04 00 0A 05 01 09 02 A1 01 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 03 05 01 09 01 A1 00 09 30 09 31 15 81 25 7F 75 08 95 02 81 06 C0 09 38 15 81 25 7F 75 Human Interface Device Report Descriptor (62 bytes, 3D3B) 08 95 01 81 06 C0 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: fae_service@pixart.com.tw V0.2 Dec. 2006
PixArt Imaging Inc. PAW3502 USB Optical Mouse Sensor Single Chip
5.2 USB Data Report Format
The USB report has two data formats, depending on boot or report protocol is selected. One kind of data format is the boot protocol used in legacy environment as 5.2.1. The other kind of data format is USB report protocol format which includes Z-wheel movement data in the fourth byte as 5.2.2. The Z-wheel is moved forward the fourth byte data is 01H, the Z-wheel is moved backward the fourth byte data is FFH, and the Z-wheel is idle the fourth byte data is 00H.
5.2.1 USB Boot Protocol for Legacy Operation
Byte Bit Symbol Description
0 BL 1 = Left button pressed
1 BR 1 = Right button pressed
2 BM 1 = Middle button pressed 1
3 ~ 7 NC Reserved 2 0 - 7 X0 ~ X7 X data (D0 - D7). A positive value indicates motion to the right; a negative value indicates motion to the left. Bit 0 = LSB. 3 0 - 7 Y0 ~ Y7 Y data (D0 - D7). A positive value indicates device motion upward; a negative value indicates motion downward. Bit 0 = LSB.
5.2.2 USB Report Protocol
Byte Bit Symbol Description
2 BM 1 = Middle button pressed
3 B4 Reserved
4 B5 Reserved
5 ~ 7 NC Reserved 2 0 - 7 X0 ~ X7 X data (D0 - D7). A positive value indicates motion to the right; a negative value indicates motion to the left. Bit 0 = LSB. 3 0 - 7 Y0 ~ Y7 Y data (D0 - D7). A positive value indicates device motion upward; a negative value indicates motion downward. Bit 0 = LSB. 4 0 - 7 Z0 ~ Z7 Z-wheel motion data (D0 - D7). A positive value indicates device motion downward; a negative value indicates motion upward. The Z0 - Z7 limit value is ±7. Bit 0 = LSB. 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: fae_service@pixart.com.tw V0.2 Dec. 2006
- Referencing Application Circuit
Note: *R2 and *R3 are reserved for future use. Figure 6. Application Circuit for PAW3502 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
7.1 Package Outline Drawing
- All dimensions in MM/INCH.
- All dimensions tolerance: +/- 0.10mm
Figure 7. Package Outline Drawing All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
7.2 Recommended PCB Mechanical Cutouts and Spacing
Figure 8. Recommended PCB Mechanical Cutouts and Spacing All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.