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.
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 saving mode during times of no movement
Speed
28 inches/sec
8g
1000 CPI
3000 frames/sec
10mA @Mouse moving (Normal)
5mA @Mouse not moving (Sleep)
480uA @USB suspend (Suspend)
Key Specification
Power Supply
Interface
Optical Lens
System Clock
Wide operating supply range
4.25V ~ 5.5V
USB
1:1
24.000 MHz
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.
Complete Universal Serial Bus specs V1.1 Operating Current
compatibility
Complete USB HID specs V1.11 compatibility
Package
Integrated USB transceiver and 1.5Mbps USB
serial interface engine
Flexibility function change
Shrunk DIP12
Ordering Information
Part Number
PAW3512DK-TJZA
PAW3512DK-TJYA
Sensor Rotate
0˚
0˚
CPI
1000
1000
Interface
U+P
U
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
1
PixArt Imaging Inc.
E-mail:
fae_service@pixart.com.tw
V1.0 Oct. 2010
PixArt Imaging Inc.
PAW3512DK Series
USB Optical Mouse Sensor 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
VDDQ
VSS
VDD5V
VDDA
D+/CLK
D-/DATA
BR
BM
Z2
Z1
Type
IN
I/O
Definition
Button left key input, normal pull-high, press connect to low
LED control
BYPASS I/O voltage reference
GND
PWR
Chip ground
Chip power VDD, 5.0V
BYPASS Analog voltage reference
I/O
I/O
IN
IN
IN
IN
USB D+ or PS/2 mouse clock line
USB D- or PS/2 mouse data line
Button right key input, normal pull-high, press connect to low
Button middle key input, normal pull-high, press connect to low
Z axis, support mechanical scroller input
Z axis, support mechanical scroller input
1.2 Pin Assignment for Sensor Rotate 0˚, +90˚, -90˚, 180˚
Figure 1. Top View Pinout
2
V1.0 Oct. 2010
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
PixArt Imaging Inc.
PAW3512DK Series
USB Optical Mouse Sensor Single Chip
Figure 2. Top View of Mouse
2. Block Diagram and Operation
POWER ON
RESET
VOLTAGE REGULATOR
AND POWER CONTROL
VDD5V
VSS
5V
POWER
LED
LED
DRIVE
CMOS
IMAGE
SENSOR
WHEEL
Z1
Z2
Z-AXIS
COUNTER
DIGITAL
SIGNAL
PROCESSOR
VDDA
VDDQ
VOLTAGE
REFERENCE
BL
BUTTON
BM
BR
USB
INTERFACE
D+
D-
DEBOUNCE
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.
3
V1.0 Oct. 2010
PixArt Imaging Inc.
E-mail:
fae_service@pixart.com.tw
PixArt Imaging Inc.
PAW3512DK Series
USB Optical Mouse Sensor Single Chip
3. Referencing Application Circuit
3.1 3D3B Application Circuit
ENSW1
U1
VDD_5V
Z1
Z1
Z2
BM
BR
D-
D+
12
11
10
9
8
7
VDD_5V
R1
D1
LED
C4
VDD_5V
1uF
+
BL
1
2
3
4
BL
LED
VDDQ
VSS
VDD5V
VDDA
Z2
BM
BR
R4
COM
C5
0.1uF
+
C2
10uF
JP1
VBUS
GND
Shield
R6
10 ohm
5
6
33 ohm
33 ohm
D-
D+
USB CABLE
R5
C6
C7
27pF
C1
+
C3
1uF
0.1uF
PAW3512
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.
4
V1.0 Oct. 2010
PixArt Imaging Inc.
E-mail:
fae_service@pixart.com.tw
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