PIXART PAW3603DH-NF

PAW3603DH-NF
PAW3603DH-NF LOW POWER WIRELESS LASER MOUSE SENSOR
General Description
The PAW3603DH-NF is a low power CMOS process wireless laser mouse sensor with DSP integration chip that
serves as a non-mechanical motion estimation engine for implementing a computer mouse.
Features
Key Specification
‰
Single power supply
‰
Precise laser motion estimation technology
‰
Complete 2-D motion sensor
‰
No mechanical parts
‰
Accurate motion estimation over most of
System Clock
surfaces
‰
High speed motion detection up to 20 inches/sec Speed
High resolution up to 2000 CPI
Resolution
Resolution setting by two method
20 inches/sec
— CPI IO trap select pin (pin15) to 800, 1200, Frame Rate
1600 CPI
6600 frames/sec
‰
‰
‰
‰
Power Supply
1.73V ~ 1.87V (VDDD,VDDA, VDD)
2.5V ~ 2.9V (VDD)
Optical Lens
1:1
— Register setting to 800/1000/1200/1600/2000
Operating
CPI
Current
Power down pin and register setting for low
power dissipation
Package
Power saving mode during times of no
movement
‰
Serial Interface for programming and data
transfer
‰
SWKINT pin (pin17) to wake up mouse
controller when sensor wakeup from sleep
mode
‰
No fly on the air
27 MHz
800/1000/1200/1600/2000 CPI
4mA @Mouse moving (Normal)
500uA @Mouse not moving (Sleep1)
100uA @Mouse not moving (Sleep2)
15uA @Power down mode
Shrunk DIP20
Ordering Information
Order Number
PAW3603DH-NF
I/O
CMOS output
Resolution
800/1200/1600 CPI
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, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
1. Pin Configuration
1.1 Pin Description
Pin No.
Name
Type
Definition
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VSS_LD
LD
OSCOUT
OSCIN
VDDD
VSSD
VSSA
VDD
VDDA
VREF
YA
YB
XA
XB
GND
OUT
OUT
IN
PWR
GND
GND
PWR
PWR
BYPASS
OUT
OUT
OUT
OUT
15
CPI
IN
16
17
18
19
20
NC
SWKINT
SCLK
SDIO
PD
OUT
IN
I/O
IN
LD ground
LD control
Resonator output
Resonator input
Chip digital power, 1.8V
Chip digital ground
Chip analog ground
Chip I/O power voltage, 1.73V ~ 1.87V(Vdd1) or 2.5V ~ 2.9V(Vdd2)
Chip analog power, 1.8V
Analog voltage reference
YA quadrature output
YB quadrature output
XA quadrature output
XB quadrature output
CPI IO trap select pin
Pull-high to VCC (Vdd1 or Vdd2): 1200 CPI
Pull-low to GND: 1600 CPI
Floating: 800 CPI
No connection
Sensor wakeup interrupt
Serial interface clock
Serial interface bi-direction data
Power down pin, active high
1.2 Pin Assignment
20
1
LB
+Y
RB
1
20
10
11
11
10
+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.
PixArt Imaging Inc.
E-mail: [email protected]
2
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
QUADRATURE
OUTPUT
VOLTAGE REGULATOR
AND POWER CONTROL
2. Block Diagram and Operation
Figure 3. Block Diagram
In the traditional optical mouse, it uses LED as a light source. The light illuminates on the working surface and
generates the bright and dark shadow that shows the micro-texture of the surface. The imaging sensor in the
optical mouse chip captures sequential this micro-texture images of the working surface. Based on the captured
images, the optical chip can determine the speed and direction when the optical mouse is moving. Thus, for the
more rough surface, the more obvious shadow image will be generated and much easier to determine the
movement and direction.
The PAW3603DH-NF is a CMOS laser mouse sensor with DSP integration chip that serves as a nonmechanical motion estimation engine for implementing a computer mouse. It is based on new laser speckle
navigation technology. In the laser mouse, it uses laser diode (LD), specially uses VCSEL (Vertical Cavity
Surface Emitting Laser) as light source, where laser is one kind of coherent light. When this light illuminates on
the working surface, the surface will reflect and diffuse the incident light and generates speckle pattern. The
imaging sensor in the laser mouse chip detects the speckle pattern that generated from the working surface and
determines the movement and direction. Since the speckle pattern can be generated on the most of the surface if
this surface is not perfect smooth or transparent, the laser mouse can adapt on more surfaces as compared with
traditional LED-based optical mouse. The sensor is in a 20-pin optical package. The output format is twochannel quadrature (X and Y direction), which emulates encoder phototransistors. The current X and Y
information are also available in registers accessed via a serial port. The word "mouse sensor," instead of
PAW3603DH-NF, is used in the document.
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, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
3. Registers and Operation
The mouse sensor can be programmed through registers, via the serial port, and DSP configuration and motion
data can be read from these registers. All registers not listed are reserved, and should never be written by
firmware.
3.1 Registers
Address
Name
R/W
Default
0x00
Product_ID1
R
0x30
0x01
Product_ID2
R
0x4X
0x02
0x03
0x04
0x05
0x06
0x07
Motion_Status
Delta_X
Delta_Y
Operation_Mode
Configuration
Image_Quality
R
R
R
R/W
R/W
R
-
Data Type
Eight bits [11:4] number with the product identifier
Four bits [3:0] number with the product identifier
Reserved [3:0] number is reserved for future
Bit field
Eight bits 2’s complement number
Eight bits 2’s complement number
Bit field
Bit field
Eight bits unsigned integer
3.2 Register Descriptions
0x00
Bit
Product_ID1
7
6
5
4
3
2
1
0
Field
PID[11:4]
Usage
The value in this register can’t change. It can be used to verify that the serial communications link is
OK.
0x01
Product_ID2
Bit
Field
Usage
7
6
5
PID[3:0]
4
3
2
1
0
Reserved[3:0]
The value in this register can’t change. PID[3:0] can be used to verify that the serial communications
link is OK. Reserved[3:0] is a value between 0x0 and 0xF, it can’t be used to verify that the serial
communications.
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, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
0x02
Motion_Status
Bit
7
Field
Motion
Usage
6
5
Reserved[1:0]
4
3
DYOVF
DXOVF
2
1
0
RES[2:0]
Register 0x02 allows the user to determine if motion has occurred since the last time it was read. If
so, then the user should read registers 0x03 and 0x04 to get the accumulated motion. It also tells if
the motion buffers have overflowed since the last reading. The current resolution is also shown.
Reading this register freezes the Delta_X and Delta_Y register values. Read this register before
reading the Delta_X and Delta_Y registers. If Delta_X and Delta_Y are not read before the motion
register is read a second time, the data in Delta_X and Delta_Y will be lost.
Notes
Field Name
Description
Motion
Motion since last report or PD
0 = No motion (Default)
1 = Motion occurred, data ready for reading in Delta_X and Delta_Y registers
Reserved[1:0]
Reserved for future use
DYOVF
Motion Delta Y overflow, ΔY buffer has overflowed since last report
0 = No overflow (Default)
1 = Overflow has occurred
DXOVF
Motion Delta X overflow, ΔX buffer has overflowed since last report
0 = No overflow (Default)
1 = Overflow has occurred
RES[2:0]
Resolution in counts per inch
000 = 800
001 = 1000
010 = 1200
011 = 1600
100 = 2000
0x03
Delta_X
Bit
7
6
5
4
3
2
1
0
Field
X7
X6
X5
X4
X3
X2
X1
X0
Usage
X movement is counts since last report. Absolute value is determined by resolution. Reading clears
the register. Report range –128 ~ +127.
0x04
Delta_Y
Bit
7
6
5
4
3
2
1
0
Field
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
Usage
Y movement is counts since last report. Absolute value is determined by resolution. Reading clears
the register. Report range –128 ~ +127.
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]
5
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
0x05
Operation_Mode
Bit
7
6
5
4
3
2
1
0
Field
LEDsht_enh
XY_enh
Reserved[1]
Slp_enh
Slp2au
Reserved[0]
Slp1mu
Wakeup
Usage
Register 0x05 allows the user to change the operation of the sensor. Shown below are the bits, their
default values, and optional values.
Operation_Mode[4:0]
“0x0xx” = Disable sleep mode
“100xx” = Enable sleep mode1
“110xx” = Enable sleep mode2
“1x010” = Force enter sleep13
“1x001” = Force wakeup from sleep mode3
Notes:
1. Enable sleep mode, but disable automatic entering sleep2 mode, that is, only 2 modes will be used,
normal mode and sleep1 mode. After 78 ms not moving during normal mode, the mouse sensor will
enter sleep1 mode, and keep on sleep1 mode until moving is detected or wakeup is asserted.
2. Enable sleep mode full function, that is 3 modes will be used, normal mode, sleep1 mode and sleep2
mode. After 78 ms not moving during normal mode, the mouse sensor will enter sleep1 mode, and
keep on sleep1 mode until moving is detected or wakeup is asserted.
And after 60 sec ±40% not moving during sleep1 mode, the mouse sensor will enter sleep2 mode,
and keep on sleep2 mode until detect moving or force wakeup to normal mode.
Mode
Sampling rate @6600 frame/sec
Active duty cycle @6600 frame/sec
Sleep1
45/sec
22.7%
Sleep2
3/sec
1.6%
Note that these values have ±40% range above list. (ex: 45/sec -> 27/sec ~ 63/sec)
3. Only one of slp1mu_enh and wakeup bit can be set to 1 at the same time, others have to be set to 0.
After a period of time, the bit, which was set to 1, will be reset to 0 by internal signal.
Notes
Field Name
Description
LEDsht_enh
LED shutter enable/disable
0 = Disable
1 = Enable (Default)
XY_enh
XY quadrature output enable/disable
0 = Disable
1 = Enable (Default)
Reserved[1]
Reserved for future use. Must be written to one
Slp_enh
Sleep mode enable/disable
0 = Disable
1 = Enable (Default)
Slp2au
Automatic enter sleep2 mode enable/disable
0 = Disable
1 = Enable (Default)
Reserved[0]
Reserved for future use. Must be written to zero.
Slp1mu
Manual enter sleep1 mode, set “1” will enter sleep1 and this bit will be reset to “0”
Wakeup
Manual wake up from sleep mode, set “1” will enter wakeup and this bit will be reset
to “0”
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]
6
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
0x06
Configuration
Bit
7
6
5
4
3
2
1
Field
Reset
Reserved[2]
Cpimd
Reserved[1]
PD_enh
Reserved[0]
0
CPI [1:0]
Usage
The Configuration register allows the user to change the configuration of the sensor. Shown below
are the bits, their default values, and optional values.
Notes
Field Name
Description
Reset
Full chip reset
0 = Normal operation mode (Default)
1 = Full chip reset
Reserved[2]
Reserved for future use. Must be written to zero.
Cpimd
CPI mode select
Reserved[1]
Reserved for future use. Must be written to zero.
PD_enh
Power down mode
0 = Normal operation (Default)
1 = Power down mode
Reserved[0]
Reserved for future use. Must be written to zero.
Output resolution setting, setting with CPI mode select bit (Cpimd)
PIN15
CPI Pin
Register
Cpimd
CPI[1:0]
CPI
Low
Low
Low
0
0
0
0
1,2
3
1600
800
1200
Low
Low
Low
1
1
1
0
1,2
3
2000
1000
1600
High
Low
Floating
0
0
0
0
0
0
1200
1600
800
High
Low
Floating
1
1
1
0
0
0
1600
2000
1000
CPI[1:0]
Note that the PIN15 MUST be Low if customers want to change every cpi scale via
Configuration register.
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]
7
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
0x07
Bit
Image_Quality
7
6
Field
5
4
3
2
1
0
Imgqa[7:0]
Usage
Image Quality is a quality level of the sensor in the current frame. Report range 0 ~ 255. The
minimum level for normally working is 15.
Notes
Field Name
Description
Imgqa[7:0]
Image quality report range: 0(worst) ~ 255(best).
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]
8
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
4. Specifications
4.1 Absolute Maximum Ratings
Stresses above those listed under "Absolute Maximum Rating" may cause permanent damage to the device. These
are stress ratings only. Functional operation of this device at these or any other conditions above those indicated in
the operational sections of this specification is not implied and exposure to absolute maximum rating conditions
for extended periods may affect device reliability.
Symbol
Parameter
Min
Max
Unit
TSTG
Storage Temperature
-40
85
°C
TA
Operating Temperature
-15
55
°C
VDC
DC Supply Voltage
-0.5
Vdd1 + 0.2
V
-0.5
Vdd2 + 0.3
V
VIN
DC Input Voltage
-0.5
VDC
V
All I/O pin
260
°C
For 10 seconds, 1.6mm below seating plane.
2
kV
All pins, human body model MIL 883 Method
3015
Lead Solder Temp
ESD
Notes
4.2 Recommend Operating Condition
Symbol Parameter
TA
Vdd1
Vdd2
Operating Temperature
Power Supply Voltage
Min.
Typ.
0
2.5
2.7
2.9
Distance from Lens Reference
Plane to Surface
2.3
R
Resolution
800
CL
Load Capacitance of
Resonator
mV
2.4
2.5
mm
1600
2000
CPI
15
Frame Rate
0
Notes
VDDD, VDDA, VDD short
VDD
Peak to peak within 0 - 80 MHz
pF
10
Clock Frequency
V
100
SCLK Serial Port Clock Frequency
Speed
°C
1.87
Z
S
40
1.8
Supply Noise
FR
Unit
1.73
VN
FCLK
Max.
MHz
27
MHz
6600
frames/s
20
inches/s
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]
9
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
4.3 AC Operating Condition
Electrical Characteristics over recommended operating conditions. Typical values at 25 °C, VDD = 1.8 V, pin 5, 8,
9 short, FCLK = 27 MHz
Symbol Parameter
tPDR
PD Pulse Register
tPD
Power Down
tPDW
PD Pulse Width
Min. Typ. Max. Unit
304
500
700
Notes
us
One frame time maximum after setting PD_enh
bit in the Configuration register
@6600frame/sec (refer to Figure 15).
us
From PD↑ (refer to Figure 13)
us
Pulse width to reset the serial interface (refer to
Figure 13).
tPUPD
Power Up from PD↓
3
14
From PD↓ to valid quad signals. After tPUPD, all
registers contain valid data from first image
after PD↓. Note that an additional 90 frames for
ms
Auto-Exposure (AE) stabilization may be
required if mouse movement occurred while PD
was high (refer to Figure 13).
tPU
Power Up from VDD↑
3
14
ms
From VDD↑ to valid quad signals.
500usec + 90 frames.
tHOLD
SDIO Read Hold Time
us
Minimum hold time for valid data (refer to
Figure 11).
us
@6600 frame/sec (refer to Figure 12)
tRESYNC Serial Interface RESYNC.
3
1
@6600 frame/sec (refer to Figure 12)
1.7ms (±40%) for normal mode,
ms
22ms (±40%) for sleep1 mode,
320ms (±40%) for sleep2 mode.
1.7
22
320
tSIWTT
Serial Interface Watchdog
Timer Timeout
tSWKINT
Sensor Wakeup Interrupt
Time
75
us
tr,tf
Rise and Fall Times: SDIO
30,
25
ns
CL = 30 pF
tr,tf
Rise and Fall Times:
XA, XB, YA, YB
20,
20
ns
CL = 30 pF
tr,tf
Rise and Fall Times: ILED
10,
10
ns
LED bin grade: R; R1 = 100 ohm
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]
10
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
4.4 DC Electrical Characteristics
Electrical Characteristics over recommended operating conditions. Typical values at 25 °C, VDD = 1.8 V, pin 5, 8,
9 short, FCLK = 27MHz
Symbol
Parameter
Min. Typ. Max. Unit
Type: Power
Supply Current
IDD
Mouse Moving (Normal)
Supply Current
IDD
Mouse Not Moving (Sleep1)
Supply Current
IDD
Mouse Not Moving (Sleep2)
Supply Current
IDDPD
(Power Down)
4
mA
500
uA
100
uA PD, SCLK, SDIO = high
15
uA
Type: SCLK, SDIO, PD
VIH
Input Voltage HIGH
VIL
Input Voltage LOW
1.25
0.5
V
Type: XA, XB, YA, YB
VOH
Output Voltage HIGH
VOL
Output Voltage LOW
1.2
0.2
V
@I OH = 2mA
V
@I OL = 2mA
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]
11
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
5. 2D/3D Assembly
BASE PLATE
-- Top View --
LD
Unit: mm
Lens/Package Alignment Line
Lens
SURFACE IS 0 REF.
PCB
SENSOR
BASE PLATE ALIGNMENT POST
-- Side View -Figure 4. 2D Assembly
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]
12
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
Figure 5. 3D Assembly
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]
13
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
6. Quadrature Mode
The quadrature state of the mouse sensor tells the mouse controller which direction the mouse is moving in. The
output format is two channels quadrature (X and Y direction), which emulates encoder phototransistors. The
DSP generates the ∆x and ∆y relative displacement values that are converted into two channel quadrature signals.
The following diagrams show the timing for positive X motion, to the right or positive Y motion, up.
6.1 Quadrature Output Timing
X motion to the right
Y motion up
XA/YA
FOUR
38us
38us
38us
38us
38us
38us
XB/YB
XA/YA
THREE
76us
XB/YB
XA/YA
38us
TWO
114us
XB/YB
XA/YA
152us
ONE
XB/YB
152us @
6600frames/second
Figure 6. Quadrature Output Timing
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]
14
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
6.2 Quadrature Output State Machine
The following state machine shows the states of the quadrature output pins. The three things to note are that state
0 is entered after a power on reset. While the PD pin is asserted, the state machine is halted. Once PD is deasserted, the state machine picks up from where it left off. During times of mouse no movement will entry power
saving mode, until mouse was moved.
PD
POWER ON RESET
+
N
IO
X/Y output
STATE
XA/YA XB/YB
N
IO
-D
IR
EC
T
D
IO
N
IR
E
T
EC
IR
D
T
EC
IR
-D
STATE 3
(1,0)
-D
IO
CT
0
1
0
1
2
1
1
3
1
0
+
N
O
TI
D
IR
E
N
EC
IR
D
-D
IR
EC
E
IR
+
0
PD
TI
O
N
STATE 1
(0,1)
0
CT
IO
N
PD
+
CT
IO
N
STATE 0
(0,0)
STATE 2
(1,1)
PD
Figure 7. State Machine
6.3 Quadrature Output Waveform
The following diagrams show the waveform of the two channel quadrature outputs. If the X, Y is motionless, the
(XA, XB), (YA, YB) will keep in final state. Each state change (ex. STATE2 → STATE3) is one count.
X M O T IO N T O T H E R IG H T
Y M O T IO N U P
( + D IR E C T IO N )
X A /Y A
X B /Y B
STATE0
( 0 , 0 )
STATE3
( 1 , 0 )
+1
STATE1
( 0 , 1 )
+1
STATE2
( 1 , 1 )
+1
STATE3
( 1 , 0 )
+1
STATE0
( 0 , 0 )
M O T IO N C O U N T
+1
X M O T IO N T O T H E L E F T
Y M O T IO N D O W N
( - D IR E C T IO N )
X A /Y A
X B /Y B
STATE0
( 0 , 0 )
STATE1
( 0 , 1 )
-1
STATE3
( 1 , 0 )
-1
STATE2
( 1 , 1 )
-1
STATE1
( 0 , 1 )
-1
STATE0
( 0 , 0 )
-1
M O T IO N C O U N T
Figure 8. Quadrature Output Waveform
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]
15
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
7. Serial Interface
The synchronous serial port is used to set and read parameters in the mouse sensor, and can be used to read out
the motion information instead of the quadrature data pins.
SCLK: The serial clock line. It is always generated by the mouse controller.
SDIO: The serial data line is used to write and read data.
PD:
A third line is sometimes involved. PD line (Power Down pin) is usually used to place the mouse sensor
in a low power mode to meet USB suspend specification. PD line can also be used to force resynchronization between the mouse controller and the mouse sensor in case of an error.
7.1 Transmission Protocol
The transmission protocol is a two-wire link, half duplex protocol between the mouse controller and the mouse
sensor. All data changes on SDIO are initiated by the falling edge on SCLK. The mouse controller always
initiates communication; the mouse sensor never initiates data transfers.
The transmission protocol consists of the two operation modes:
- Write Operation.
- Read Operation.
Both of the two operation modes consist of two bytes. The first byte contains the address (seven bits) and has a
bit 7 as its MSB to indicate data direction. The second byte contains the data.
SECOND BYTE
F IR S T B Y T E
R /W
( 1 B IT )
A D D R E S S ( 7 B IT )
MSB
D A T A ( 8 B IT )
LSB M SB
LSB
Figure 9. Transmission Protocol
7.1.1 Write Operation
A write operation, which means that data is going from the mouse controller to the mouse sensor, is always
initiated by the mouse controller and consists of two bytes. The first byte contains the address (seven bits) and
has a “1” as its MSB to indicate data direction. The second byte contains the data. The transfer is synchronized
by SCLK. The mouse controller changes SDIO on falling edges of SCLK. The mouse sensor reads SDIO on
rising edges of SCLK.
1
SCLK
SDIO
DON'T
CARE
1
2
3
A6 A5
4
5
6
A4 A3
A2
7
8
A1 A0
9
10
D7 D6
11
12
13
14
15
16
D5 D4 D3 D2 D1 D0
DON'T
CARE
SDIO driven by the mouse controller
Figure 10. Write Operation
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]
16
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
7.1.2 Read Operation
A read operation, which means that data is going from the mouse sensor to the mouse controller, is always
initiated by the mouse controller and consists of two bytes. The first byte contains the address, is written by the
mouse controller, and has a “0” as its MSB to indicate data direction. The second byte contains the data and is
driven by the mouse sensor. The transfer is synchronized by SCLK. SDIO is changed on falling edges of SCLK
and read on every rising edge of SCLK. The mouse controller must go to a high Z state after the last address
data bit. The mouse sensor will go to the high Z state after the last data bit.
SCLK
1
2
3
4
5
6
7
9
10
11
12
13
14
15
16
D7
D6
D5
D4
D3
D2
D1
D0
8
H i-Z
S D IO
D O N 'T
CARE
0
A6
A5
A4
A3
A2
A1
A0
S D IO d riven b y th e m ou se con troller
H i-Z_
R /W b it o f n ex t
ad d ress
S D IO d riv en b y th e m ou se senso r
N o te "A "
N o te "B "
N o te "A " 1. T he m ou se co ntroller send s add ress to the m o use sen so r.
2. T he m ou se co ntroller releases an d set S D IO to H i-Z after th e last ad dress bit.
SCLK
A1
S D IO
9
8
7
H i-Z
A0
D7
tH O L D
3u s,m in
N o te "B "
1. T he m o use sen so r sen ds data to th e m ou se con tro ller .
2. T he m o use sen so r releases and set S D IO to H i-Z after th e last data bit.
SCLK
16
H i-Z
S D IO
D0
1
_
R /W b it of n ex t ad dress
S D IO driven b y the m ou se co ntroller
Figure 11. Read Operation
7.2 Re-Synchronous Serial Interface
If the mouse controller and the mouse sensor get out of synchronization, then the data either written or read
from the registers will be incorrect. In such a case, an easy way to solve this condition is to toggle the SCLK
line from high to low to high and wait at least tSIWTT to reach re-synchronous the parts after an incorrect read.
This method is called by “watchdog timer timeout”. The mouse sensor will reset the serial port but will not reset
the registers and be prepared for the beginning of a new transmission.
t S IW T T
SCLK
1
tR E S Y N C
1 u s , m in
S D IO
H i-Z
2
3
4
5
6
7
_
8
9
A D D R E S S (R /W )
1
0
1
1
1
2
1
3
1
4
1
5
1
6
DATA
Figure 12. Re-synchronous Serial Interface Using Watchdog Timer Timeout
Note that this function is disabled when the mouse sensor is in the power down mode. If the user uses this
function during the power down mode, it will get out of synchronization. The mouse sensor and the mouse
controller also might get out of synchronization due to following conditions.
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]
17
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
z
Power On Problem - The problem occurs if the mouse sensor powers up before the mouse controller
sets the SCLK and SDIO lines to be output. The mouse sensor and the mouse controller might get out
of synchronization due to power on problem. An easy way to solve this is to use “watchdog timer
timeout”.
z
ESD Events - The mouse sensor and the mouse controller might get out of synchronization due to ESD
events. An easy way to solve this is to use “watchdog timer timeout”
7.3 Collision Detection on SDIO
The only time that the mouse sensor drives the SDIO line is during a READ operation. To avoid data collisions,
the mouse controller should release SDIO before the falling edge of SCLK after the last address bit. The mouse
sensor begins to drive SDIO after the next falling edge of SCLK. The mouse sensor releases SDIO of the rising
SCLK edge after the last data bit. The mouse controller can begin driving SDIO any time after that. In order to
maintain low power consumption in normal operation or when the PD pin is pulled high, the mouse controller
should not leave SDIO floating until the next transmission (although that will not cause any communication
difficulties).
7.4 Power Down Mode
There are two different ways to entry power down mode, using the PD line (see Section 7.4.1) or register setting
(see Section 7.4.2).
7.4.1 PD Line Power Down Mode
To place the mouse sensor in a low power mode to meet USB suspend specification raises the PD line at least
tPDW. Then PD line can stay high, with the mouse sensor in the shutdown state, or the PD pin can be lowered,
returning the mouse sensor to normal operation.
Figure 13. Power Down Minimum Pulse Width
Figure 14. PD Line Power Down Mode
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]
18
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
7.4.2 Register Power Down Mode
The mouse sensor can be placed in a power down mode by setting PD_enh bit in the configuration register via
a serial port write operation. After setting the configuration register, wait at least 1frame times. To get the chip
out of the power down mode, clear PD_enh bit in the configuration register via a serial port write operation. In
the power down mode, the serial interface watchdog timer is not available (see Section 7.2). But, the serial
interface still can read/write normally. For an accurate report after leave the power down mode, wait about 3ms
before the mouse controller is able to issue any write/read operation to the mouse sensor.
SCLK
1
2
3
4
5
6
7
8
9
1
0
0
0
0
Address = 0x06
1
0
0
0
0
1
1
1
1
1
2
1
3
1
4
1
5
1
6
1 frame, max
Data = 0x08
0
0
1
0
0
0
SDIO
IDD
tPDR
Figure 15. Power-down Configuration Register Writing Operation
7.5 Error Detection
1. The mouse controller can verify success of write operations by issuing a read command to the same address
and comparing written data to read data.
2. The mouse controller can verify the synchronization of the serial port by periodically reading the product ID
register.
8. SWKINT Timing
When the mouse sensor is in sleep mode and the mouse controller is also in sleep mode, if the mouse sensor
finds motion occurred at this moment, the mouse sensor wake mouse controller up promptly via SWKINT.
SWKINT
tSWKINT
Figure 16. SWKINT Timing
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]
19
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
9. Referencing Application Circuit
9.1 2.7V Application Circuit
#1. Battery Power Circuit
BAT_PWR
VCC_2.7V
L1
220uH
ENSW1
VCC_2.7V
Z2
Z2
D1
COM
1N5819
Z1
Z1
U1
C1
ENCODER
C2
GND
SW
47uF
VOUT
R_KEY
SW1
47uF
M_KEY
SW2
ELM9327
L_KEY
SW3
#2.MCU Circuit
VCC_2.7V
U2
ID_SY NC 1
SWINT
2
3
4
5
Z1
6
Z2
7
R_KEY
8
M_KEY
9
R11
30K
C5
0.1uF
C3
RF_EN
RF_DATA
18
17
16
15
14
13
12
11
10
P51
P50
OSCI
OSCO
VDD
P67
P66
P65
P64
P52
P53
TCC
RESET
VSS
P60/INT
P61
P62
P63
X1
6MHz
15pF
VCC_2.7V
R2
C4 15pF
VCC_2.7V
SCLK
SDIO
PD
L_KEY
20K
ID_SYNC
C6
0.1uF
S1
8bits MCU
VCC_2.7V
R3
#3.RF TX Circuit
10ohm
C7
C8
C9
1uF
0.1uF
1uF
RF_EN
C10
C11
R4
0.1uF
27K
R5
X2
13.5225MHz
36K
C14
C15
Q2
RF_DATA
R8
10K
R7
0.1uF
R6
C13
100pF
56K
3904
27pF
C16 100pF
3904
10pF
C12
100pF
Q1
100K
C17
R9
33pF
2K
Q3
3904
C3305-B100R
#4.Sensor Circuit
R1_4
VR1
R1_3
R1_2
VCC_2.7V
PAW3603 CPI SETTING
R1_1
U3
1
R1_5
2
D2
LD
3
C18 15 pF
X3
27MHz
C19 15 pF
VCC_2.7V
4
5
C24
1uF
*R13
6
OPEN
7
8
*R14
SHORT
*R15
OPEN
9
10
C20
C21
C23
C25
0.1uF
1uF
0.1uF
VSS_LD
PD
LD
SDIO
OSCOUT
SCLK
OSCIN
SWKINT
VDDD
NC
VSSD
CPI
VSSA
XB
VDD
XA
VDDA
YB
VREF
YA
PD
19
SDIO
18
SCLK
PAW3603DH-NF
CPI2
Resolution
OPEN
0R
1600 CPI
0R
OPEN
1200 CPI
OPEN
OPEN
800 CPI
PAW3603 USED
2.7V POWER
*R14 => 0R
17
16
SWINT
*R13, *R15 => OPEN
CPI1
OPEN / SHORT
PAW3603 USED 1.8V POWER
*R13, *R14, *R15 => 0R
15
Note:
14
1. U1 are suggested to use +/- 2.5% high
13
accuracy DC/DC converter
12
2. R1_1, R1_2, R1_3, R1_4, R1_5 are suggested
to use 1% precise resistor
11
CPI2
+
10uF
20
CPI1
SHORT / OPEN
3. VR1 is C3305 100ohm VR for JAY WEI INDUS.
CORP
Figure 17. Application Circuit for 2.7V
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]
20
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
9.2 1.8V Application Circuit
#1. Battery Power Circuit
BAT_PWR
L2
ENSW1
VCC_1.8V
VCC_1.8V
Z2
Z2
COM
220uH
D3
1N5819
Z1
U4
Z1
ENCODER
C26
C27
47uF
R_KEY
VOUT
GND
SW
SW1
100uF
M_KEY
SW2
ELM9318
L_KEY
SW3
#2.MCU Circuit
VCC_1.8V
U2
ID_SY NC 1
SWINT
2
3
4
5
Z1
6
Z2
7
R_KEY
8
M_KEY
9
R11
30K
C5
0.1uF
C3
P51
P50
OSCI
OSCO
VDD
P67
P66
P65
P64
P52
P53
TCC
RESET
VSS
P60/INT
P61
P62
P63
18
17
16
15
14
13
12
11
10
RF_EN
RF_DATA
X1
6MHz
15pF
VCC_1.8V
R2
C4 15pF
VCC_1.8V
SCLK
SDIO
PD
L_KEY
20K
ID_SYNC
C6
0.1uF
S1
8bits MCU
VCC_1.8V
R3
#3.RF TX Circuit
10ohm
C7
C8
C9
1uF
0.1uF
1uF
RF_EN
C10
C11
R4
X2
13.5225MHz
0.1uF
27K
R5
0.1uF
36K
C14
R8
10K
R7
C15
Q2
RF_DATA
100K
C17
R9
33pF
2K
Q3
3904
VCC_1.8V
VCC_1.8V
R1_1
U3
R1_4
1
R1_5
2
LD
3
X3
27MHz
C19 15 pF
VCC_1.8V
4
5
C24
1uF
*R13
6
SHORT
7
8
*R14
SHORT
9
*R15
SHORT
10
C20
C21
C23
C25
0.1uF
1uF
0.1uF
VSS_LD
PD
LD
SDIO
OSCOUT
SCLK
OSCIN
SWKINT
VDDD
NC
VSSD
CPI
VSSA
XB
VDD
XA
VDDA
VREF
YB
YA
PAW3603 CPI SETTING
20
PD
19
SDIO
18
SCLK
17
SWINT
CPI1
CPI2
Resolution
OPEN
0R
1600 CPI
0R
OPEN
1200 CPI
OPEN
OPEN
800 CPI
CPI1
PAW3603 USED
16
OPEN / SHORT
1.8V POWER
*R13, *R14, *R15 => 0R
15
Note:
14
1. U4 are suggested to use +/- 2.5% high
13
accuracy DC/DC converter
12
11
2. R1_1, R1_2, R1_3, R1_4, R1_5 are suggested
CPI2
to use 1% precise resistor
SHORT / OPEN
3. VR1 is C3305 100ohm VR for JAY WEI INDUS.
+
10uF
100pF
C3305-B100R
R1_2
C18 15 pF
C13
27pF
VR1
D2
C12
100pF
56K
3904
C16 100pF
3904
10pF
#4.Sensor Circuit
R1_3
R6
Q1
PAW3603DH_NF
CORP
Figure 18. Application Circuit for 1.8V
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]
21
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
9.3 Reference Application for RF Receiver
C2
C4
+
2.2uF
1
2
3
4
5
OSC_IN 6
OSC_OUT 7
8
B3
9
10
VCC_RF
C9
+
10uF
20pF
C3
68pF
C6
U1
10nF
C8
C1
0.1uF
20
19
18
17
16
15
14
13
12
11
ANT_IN1
ANT_IN2
AGND
VNEG
VPOS
MDR
VCC
LF
VDIG
AGND
XTAL_IN
VPOS_LO
XTAL_OUT VNEG_LO
VNEG_DIG
B1
B3
OUT
B2
CLK
C5
10nF
C7
+
2.2uF
2.2uF
B1
RF_DATA
C11 C10
10nF
+
2.2uF
TI TRF7903-PW20
C12
+
2.2uF
C13
10nF
OSC_IN
VCC_RF
R1
OPEN
B1
C14
B3
X1
12MHz
47pF
R2
OSC_OUT
0R
R4
R5
0R
OPEN
Q1
2N3906
VCC_RF
A0 VCC
A1
WP
A2 SCL
GND SDA
VCC_RF
47pF
U2
1
2
3
4
VCC_5V
C15
8
7
6
5
R3 10K
C16
SCL
SDA
R6
0.1uF
PWR_Ctrl
2402
10K
U3
RF_DATA
VCC_RF
R8
1
2
470
3
D1
S1
LED
ID_SYNC
4
PWR_Ctrl
5
P0.0
P0.1
P0.2
P0.3
VREG
D-/SDATA
D+/SCLK
VCC
15
VSS
P0.5
P0.6
XTALOUT
JP1
1.3K
1
16
VCC_5V
14
C17
P1.0
XTALIN
R7
10
0.1uF
2
C18
3
10uF
4
+
VPP
12
11
USB
9
23
SCL
22
SDA
13
CYPRESS CY7C63723
Figure 19. Application Circuit for RF Receive
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]
22
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
9.4 PCB Layout Consideration
1. Caps for pins 5, 8, 9, 10 must have trace lengths less than 5mm.
2. The trace lengths of OSCOUT, OSCIN must less than 6mm.
3. Avoid the eye safety issue, please placement the R1_1 ~ R1_5 and VR1 in a straight line and avoid any resistor
to short each other or short to VCC.
4. Avoid the eye safety issue, please guard the trace from LD’s cathode to mouse sensor’s PIN2 (LD) and avoid
short to ground.
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]
23
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
10. Package Information
10.1 Package Outline Drawing
20
11
1
10
Θ
1
10
20
11
Θ
Figure 20. 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.
PixArt Imaging Inc.
E-mail: [email protected]
24
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
10.2 Base Plate Molding Dimension
All Dimensions : mm
Figure 21. Base Plate Molding Dimension
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]
25
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
10.3 Recommended PCB Mechanical Cutouts and Spacing
Figure 22. Recommended PCB Mechanical Cutouts and Spacing
11. Update History
Version
V1.0
Update
Creation, Preliminary 1st version
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]
Date
08/28/2007
26
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
Vertical Cavity Surface Emitting Laser
(VCSEL)
Components Specification
Distribution
Internal Only
□
External All
□
External Restricted
□
If restricted, specify restricted to whom:
.
Document No.:
PNDR-00022
Revision:
Rev 2.0
Date:
2007/08/27
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]
27
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
Revision History
Revision
Author
Date
Description
1.0
Chadwick
2007/01/18
Initial version
1.5
Chadwick
2007/05/04
Revise resistor table for higher CW radiant power 300uW ~650uW
on Mouse operation ; Delete P32/P64 Grades
2.0
Chadwick
2007/08/27
Revise resistor table for higher CW radiant power 300uW ~650uW
on Mouse operation ; Delete LD P50~P60 Grades for VDD=1.8V
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]
28
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
PNDR-00022
850nm Epoxy molded VCSEL for Laser Mouse
FEATURES
z
Epoxy Molded with round emission surface.
z
Small divergence angle.
ELECTRO-OPTICAL CHARACTERISTICS:
PARAMETERS
SYMBOL
TYP
MAX
0.475
MIN
UNIT
TEST CONDITIONS
0.7
mW
I=IF (1)
Output Power
Po
Wavelength
λP
835
850
860
nm
IF = 6 mA
Forward Voltage
VF
1.6
1.7
1.80
V
IF = 6 mA
Series Resistance
RS
40
60
Ω
IF = 6 mA
14
V
Ir = 10uA
8
degree
IF = 6 mA
Breakdown voltage
VBD
2
7
θ
Beam Divergence(1/e )
Notes :(1) Binning
Optical power at each of following nominal bin operating current and constrained resistor at VDD=1.8 V.
Bin grade LD current (mA)
Single
6 Series
Constrain
Constrain
resistor :R(Ω) resistor: rn (Ω)
Bin grade LD current (mA)
Single
6 Series
Constrain
Constrain
resistor :R(Ω) resistor: rn (Ω)
P36
3.6
40.8
6.8
P44
4.4
28.2
4.7
P40
4.0
30.6
5.1
P46
4.6
25.8
4.3
P42
4.2
30.6
5.1
P48
4.8
21.6
3.6
Single constrain resistor R value = 6 series connection resistor for eye safety protection
R = r1+r2+r3+r4+r5+VR1
Ex. P44: 28.2Ω = 4.7Ω+ 4.7Ω+4.7Ω+4.7Ω+4.7Ω+VR1(4.7Ω).
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]
29
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
Optical power at each of following nominal bin operating current and constrained resistor at VDD=2.7 V.
Bin grade LD current (mA)
Single
6 Series
Constrain
Constrain
resistor :R(Ω) resistor: rn (Ω)
Single
6 Series
Constrain
Constrain
resistor :R(Ω) resistor: rn (Ω)
Bin grade LD current (mA)
P36
3.6
306
51
P50
5.0
198
33
P40
4.0
282
47
P52
5.2
180
30
P42
4.2
282
47
P54
5.4
180
30
P44
4.4
234
39
P56
5.6
162
27
P46
4.6
234
39
P58
5.8
162
27
P48
4.8
216
36
P60
6.0
132
22
Single constrain resistor R value = 6 series connection resistor for eye safety protection
R = r1+r2+r3+r4+r5+VR1
Ex. P52:180Ω = 30Ω+ 30Ω+30Ω+30Ω+30Ω+VR1(30Ω)
Warning! For Single constrain resistor( R ) and 6 series constrain resistor(rn), please using the recommend
value, if resistor value is less than recommend value, there will be eye safety issue.
ABSOLUTE MAXIMUM RATINGS:
PARAMETERS
Storage Temperature
Operating Temperature
Continuous Forward Current
Continuous Reverse Voltage
Lead Solder Temperature
MAX
85
60
12
7
260
MIN
-30
-10
Fig. 1 Typical Optical Characteristics
UNIT
°C
°C
mA
V
°C
Condition
10 seconds
Fig. 2 Typical Electrical Characteristics
3.0
5
2.5
Voltage (V)
Power (mW)
4
3
2
2.0
1.5
1.0
1
0.5
0.0
0
0
2
4
6
8
Current (mA)
10
12
14
0
2
4
6
8
10
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]
12
14
Current (mA)
30
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
OUTLINE DIMENSIONS:
Note:
1. unit is millimeters
2. Tolerance is ± 0.2 mm unless otherwise notes
WARNING:
The VCSEL is a class IIIa laser in the safety
standard ANSI Z136.1 and should be treated
as a potential eye hazard.
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]
31
V1.0, Aug. 2007
PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
PNLR-00038 Lens Dimensions
Note: The Part No. of the Mouse Product with Prefix "PAN" shall NOT be made, sold, offered to sell, imported
or used in or into USA, Canada, Japan and EU. For "PAN", PixArt has only gained territory-limited patent
license from Avago. Avago reserve right to take legal action against our customers who fails to comply the
above term. PLEASE NOTE THAT PixArt will NOT defend, indemnify, or provide any assistance to our
customers who fail to comply the term. IF YOU DO NOT AGREE THE TERM, PIXART WILL NOT
DELIVER "PAN" PRODUCTS TO YOU.
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]
32
V0.7, June. 2007