PIXART PAW3402DK-TJ

PAW3402 / PAW3412
PAW3402 /PAW3412 PS/2 OPTICAL MOUSE SOC
General Description
PAW3402 / PAW3412 is a CMOS process optical mouse SOC with PS/2 interface that serves as a nonmechanical motion estimation engine for implementing a computer mouse.
Features
Key Specification
‰
Single 5.0 volt power supply
‰
Compatible with Microsoft Intelli 3D PS/2
and IBM PS/2 mouse
Power Supply
Wide operating supply range
4.5V ~ 5.5V
‰
Precise optical motion estimation technology
Interface
PS/2
‰
Complete 2-D motion sensor
‰
No mechanical parts
‰
Accurate motion estimation over a wide
range of surfaces
‰
High speed motion detection up to 28
inches/sec
Optical Lens 1:1
‰
High resolution up to 1000 CPI
‰
Power saving mode during times of no
movement
‰
Support three buttons (R, M, L) and three
axes (X, Y, Z)
‰
Z axis support two kinds of input—
Speed
28 inches/sec
Acceleration 20g
Resolution
500 / 800 / 1000
Frame Rate
3000 frames/sec
Operating
Current
12 mA @Mouse moving (Normal)
5 mA @Mouse not moving (Sleep)
Package
Shrunk DIP12
opto-mechanical and mechanical
‰
¾
PAW3402 support mechanical input
¾
PAW3412 support opto-mechanical input
Internal ± 10% accurate oscillator, external
resonator-less
Ordering Information
Part Number
CPI
Sensor Rotate
Wheel Type
Device Type
PAW3402DK
PAW3402DK-LH
PAW3402DK-TJ
PAW3412DK-TE
800
800
1000
500
0˚
-90˚
0˚
0˚
Mechanical
Mechanical
Mechanical
Opto-Mechanical
2D3B/3D3B
2D3B/3D3B
2D3B/3D3B
2D3B/3D3B
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PixArt Imaging Inc.
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
1. Pin Configuration
1.1 Pin Description
Pin # Name
Type
Definition
1
BL
IN
Button left key input, internal pull-up 50K ohm, press connect to low
2
LED
OUT
LED control
3
OSC_RES IN
Connect to resistor input
4
VSS
GND
Chip ground
5
VDD5V
PWR
Chip power VDD, 5.0V
6
VREF
BYPASS Analog voltage reference
7
CLOCK
I/O
PS/2 mouse clock line
8
DATA
I/O
PS/2 mouse data line
9
BR
IN
Button right key input, internal pull-up 50K ohm, press connect to low
10
BM
IN
Button middle key input, internal pull-up 50K ohm, press connect to low
11
Z2
IN
Z axis, support mechanical encoder input (internal pull-down 50K ohm) or
optical encoder input (needs external pull-down resistor)
12
Z1
IN
Z axis, support mechanical encoder input (internal pull-down 50K ohm) or
optical encoder input (needs external pull-down resistor)
1.2 Pin Assignment For Sensor Rotate 0˚
Figure 1. Top View Pinout
Figure 2. Top View of Mouse
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
1.3 Pin Assignment For Sensor Rotate -90˚
Figure 3. Top View Pinout
Figure 4. Top View of Mouse
2. Block Diagram and Operation
BUTTON
BM
BR
PS/2
INTERFACE
CLOCK
DATA
CMOS IMAGE
SENSOR
DIGITAL
SIGNAL
PROCESSOR
PS/2 MOUSE CONTROLLER
VDD
5V POWER
AND POWER CONTROL
BL
POWER ON
RESET
VOLTAGE REGULATOR
Z1
Z2
Z-AXIS
COUNTER
WHEEL
LED
DRIVE
DEBOUNCE
LED
INTERNAL
OSCILLATOR
VSS
VREF
VOLTAGE
REFERENCE
OSC_RES
Figure 5. Block diagram
PAW3402 / PAW3412 is a CMOS process optical mouse SOC 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 500 / 800 / 1000 counts per inch (cpi) and the rate of motion up to 28 inches per
second. It is also featured resonator-less (Internal ± 10% accurate oscillator) to save customer’s BOM cost.
PAW3402 / PAW3412 include PS/2 interface so that no mouse controller is needed to interface through PS/2.
PAW3402 / PAW3412 can receive command and echo status or data format which are compatible with IBM
PS/2 mouse and Microsoft 3D PS/2 mouse.
* The word “PS/2 Mouse”, instead of “ PAW3402 / PAW3412”, is used in the document.
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
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
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
VDC
DC Supply Voltage
-0.5
5.5
V
VIN
DC Input Voltage
-0.5
5.5
V
All I/O pin
Typ.
Max.
Unit
40
°C
5.5
V
100
mV
3.2 Recommend Operating Condition
Symbol Parameter
Min.
TA
Operating Temperature
0
VDD
Power Supply Voltage
4.5
VN
Supply Noise
Z
Distance from Lens
Reference Plane to
Surface
2.3
2.4
2.5
mm
R
Resolution
500
800
1000
CPI
FR
Frame Rate
S
Speed
5.0
3000
0
Notes
Peak to peak within 0 - 80 MHz
frames/s
28
25 inches/sec @500CPI
16 inches/sec @800CPI
inches/sec
13 inches/sec @1000CPI
*Base on data rate : 100 report/sec
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PixArt Imaging Inc.
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
3.3 AC Operating Condition
Electrical characteristics over recommended operating conditions. Typical values at 25 °C, VDD =5.0 V
Symbol Parameters
Tmca
Tmci
Tmdc
Tsca
Tsci
Tsdc
Tscd
Min. Typ. Max. Unit
Mouse CLK Active Time
Mouse CLK Inactive Time
Time that Mouse Sample DATA from CLK Rising Edge
System CLK Active Time
System CLK Inactive Time
Time from DATA Transition to Falling Edge of CLK
Time from Rising Edge of CLK to DATA Transition
-
40
40
14
40
40
12
28
-
us
us
us
us
us
us
us
Notes
Refer to
Figure 9,10
3.4 DC Electrical Characteristics
Electrical characteristics over recommended operating conditions. Typical values at 25 °C, VDD =5.0 V
Symbol Parameter
Type: PWR
Supply Current
IDD
Mouse moving (normal)
Supply Current
IDD
Mouse not moving (sleep)
Type: BL, BM, BR
RPH
Internal Pull-up Resistance
Min. Typ. Max.
Unit
Notes
-
12
-
mA
-
5
-
mA
-
50
-
Kohm
-
50
-
Only mechanical Z input built-in internal
Kohm pull-down resistance, optical Z input
needs external pull-down resistance
Type: Z1, Z2
RPD
Internal Pull-down Resistance
Type: BL, BM, BR, Z1, Z2
VIH
Input High Voltage
2.0
-
-
V
VIL
Input Low Voltage
-
-
0.8
V
5
-
Kohm
Type: CLOCK, DATA
RPH
Internal Pull-up Resistance
-
VOL
Output Low Voltage
-
-
0.6
V
IOL= 1mA
IOH
Output Pull-up Current
-
1
-
mA
VOH=2.0V
-
-
300
mV
I OL = 25mA
Type: LED
VOL
Output voltage LOW
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
4. Z and 2D/3D Assembly
Package Lid
Lens
Z
OBJECT SURFACE
Figure 6. Distance from Lens Reference Plane to Surface
ESD LENS RING
BASE PLATE
Figure 7. 2D Aassembly
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
Figure 8. 3D Assembly for Mounting Instructions
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
5. PS/2 Command Set Description
There are 16 valid commands that transmit between the system and the PS/2 Mouse. All other commands will
cause an FE (Resend) response from the PS/2 Mouse. A second invalid command will cause an FC (error)
response from the PS/2 Mouse.
5.1 PS/2 Command Set
Hex Code
FF
FE
F6
F5
F4
F3, XX
F2
F0
EE
EC
EB
EA
E9
E8, XX
E7
E6
Command
Reset
Resend
Set Default
Disable
Enable
Set Sampling Rate
Read Device Type
Set Remote Mode
Set Wrap Mode
Reset Wrap Mode
Read Data
Set Stream Mode
Status Request
Set Resolution
Set Scaling 2:1
Reset Scaling
Response
FA, AA, 00
XX, (XX, XX)
FA
FA
FA
FA, FA
FA, 00
FA
FA
FA
FA, XX, XX, XX
FA
FA, XX, XX, XX
FA, FA
FA
FA
5.2 Set Sampling Rate (F3, XX)
Second Byte Hex Value (XX)
0A
14
28
3C
50
64
C8
Sampling Rate
10/sec
20/sec
40/sec
60/sec
80/sec
100/sec
200/sec
5.3 Status Request (E9)
Byte
1
2
3
Bit
0
1
2
3
4
5
6
7
0-7
0-7
Symbol
BR
BM
BL
0
Scaling
Enabled
Remote mode
0
Resolution
Sampling rate
Description
1 = Right button pressed.
1 = Middle button pressed.
1 = Left button pressed.
Always = 0, reserved for future use.
0 = Scaling 1:1; 1 = Scaling 2:1.
0 = Disabled; 1 = Enabled.
0 = Stream mode; 1 = Remote mode.
Always=0, reserved for future use.
Current resolution setting. Bit 0=LSB.
Current sampling rate. Bit 0=LSB.
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
6. Data Format
The PS/2 Mouse support two different PS/2-compatible packet formats, depending upon the following
operational modes:
•
•
Standard 2D mode (2D3B)
Standard 3D mode (3D3B)
6.1 Standard 2D Mode Format
A standard 2D PS/2-compatible mouse motion report consists of a 3-byte packet defined as below.
Byte
1
Bit
0
1
2
3
4
5
6
7
2
0-7
3
0-7
Symbol
BL
BR
BM
1
Xs
Ys
XOV
YOV
Description
1 = Left button pressed
1 = Right button pressed
Always = 0, reserved for middle button
Always = 1, reserved for future use
X data sign, 1 = negative
Y data sign, 1 = negative
X data overflow, 1 = overflow
Y data overflow, 1 = overflow
X data (D0 - D7). A positive value indicates motion to the right; a
X0~X7
negative value indicates motion to the left. Bit 0=LSB.
Y data (D0 - D7), A positive value indicates device motion upward; a
Y0~Y7
negative value indicates motion downward. Bit 0=LSB.
6.2 Standard 3D Mode Format
A standard 3D PS/2-compatible mouse motion report consists of a 4-byte packet defined as below.
Byte
1
Bit
0
1
2
3
4
5
6
7
2
0-7
3
0-7
4
0-7
Symbol
BL
BR
BM
1
Xs
Ys
XOV
YOV
Description
1= Left button pressed
1 = Right button pressed
1= Middle button pressed
Always = 1, reserved for future use
X data sign, 1 = negative
Y data sign, 1 = negative
X data overflow, 1 = overflow
Y data overflow, 1 = overflow
X data (D0 - D7). A positive value indicates motion to the right; A
X0~X7
negative value indicates motion to the left. Bit 0=LSB.
Y data (D0 - D7). A positive value indicates device motion upward; A
Y0~Y7
negative value indicates motion downward. Bit 0=LSB.
Z-wheel motion data (D0 - D7). A positive value indicates device
Z0~Z7 motion downward; a negative value indicates motion upward. The Z0Z7 limit value is ±7. Bit 0=LSB.
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
7. Mouse Mode Selection
The Set Sampling Rate command is used to set the device operating modes. Whenever the mouse received
command 'FF', it will reset to standard mode (2D3B) mode. After power-on reset is initiated, the mouse is set to
standard PS/2 mode.
The Device ID is available through the PS/2 Read Device Type (0xF2) command. For a device in standard 2D
mode, the device will report an ID of 0x00. For a device in standard 3D mode, the device will report an ID of
0x03.
Mode
Standard 2D mode (2D3B)
Standard 3D mode (3D3B)
Device ID
0x00
0x03
● Standard 3D Mouse (3D3B) Command Sequence
After Reset, the device will be in standard 2D mode. By sending the Set Sampling Rate command series as
follows, the device is set to standard 3D mode.
Command
F3
C8
F3
64
F3
50
F2
Response
FA
FA
FA
FA
FA
FA
FA, 03
Notice that the Set Sampling Rate commands are valid, and the device report rate will be the value of the last
command; that is, 0x50 after this series of commands.
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
8. PS/2 Data Transmission
8.1 Mouse Send Data Out to Host
When the mouse is ready to transmit data, it must first check for mouse “inhibit” or system “request to send”
status on clock and data lines. If CLK is low (inhibit status), data shall be continuously updated in the mouse and
no transmissions shall be started. If CLK is high and DATA is low (request-to-send), data is updated. Data is
received from the system and no transmission are started by the PS/2 Mouse until CLK and DATA both high.
If CLK and DATA are both high, the transmission is ready. DATA is valid prior to the falling edge of CLK and
beyond the rising edge of CLK. During transmission, The PS/2 Mouse check for line contention by checking for
an inactive level on CLK at intervals not to exceed 100 microseconds. Contention occurs when the system
lowers CLK to inhibit the PS/2 Mouse output after PS/2 Mouse has started a transmission. If this occurs prior to
the rising edge of the tenth clock (parity bit), The PS/2 Mouse internally store the data package in its buffer and
return DATA and CLK to an active level. If the contention does not occur by the tenth clock, the transmission is
complete.
Following a transmission, the system can inhibit the PS/2 Mouse by holding CLK low until it can service the
input or until the system receives a request to send a response if necessary.
Tsca
1st
CLK
2nd
CLK
10 th
CLK
11th
CLK
CLK
………
Tsdc
Tsci
Tscd
DATA
Tpi
………
Start bit
………
…
Bit0 - Bit7
Parity bit
Stop bit
Figure 9. Mouse send data out to host
8.2 Mouse Receive Data from Host
System first check to see if the PS/2 Mouse is transmitting data. If the PS/2 Mouse is transmitting, the system
can override the output forcing CLK to an inactive level prior to the tenth clock. If the PS/2 Mouse transmission
is beyond the tenth clock, the system receives the data. If the PS/2 Mouse is not transmitting or if the system
chooses to override the output, the system force CLK to an inactive level for a period of not less than 100
microseconds while preparing for output. When the system is ready to output “0” start bit, it allows CLK to go to
active level. If “request-to-send” is detected, the PS/2 Mouse clocks in 11 bits. Following the tenth clock, the
PS/2 Mouse checks for an active level on the DATA line, and if found, force DATA low (line control bit), and
clock once more. If occurs framing error, the PS/2 Mouse continue to clock until DATA is high, then clock the
line control bit and request a resend.
For each system command or data transmission to the PS/2 Mouse that requires a response, the system must wait
for the PS/2 Mouse to response before sending its next output.
Tmca
CLK
1 st
CLK
Inhibit
2 nd
CLK
9 th
CLK
10 th
CLK
11 th
CLK
……
Tmdc
DATA
Tmci
Tmlc
………
Start bit
Bit0 - Bit7
…
…
Parity bit
Stop
bit
Line
control bit
Figure 10. Mouse Receive Data from Host
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
9. Referencing Application Circuit
9.1 PAW3402 with Mechanical Encoder Input
*Y1 OPEN
U1
*R3
OPEN
VDD_5V
*1
BL
R1
D1
1
LED
2
+
*C4
OPEN
3
4
VDD_5V
R6
VDD_5V_10R
5
10 ohm
6
C1
VDD_5V_10R
NC
NC
BL
Z1
LED
Z2
BM
OSC_RES
VSS
BR
VDD5V
DATA
VREF
CLOCK
*14
ENSW1
12
11
Z2
10
BM
9
BR
+
COM
C5
SHORT
7
R5
SHORT
PAW3402
JP1
0.1uF 10uF
R4
10uF
C2
+
8
C3
0.1uF
VDD_5V
Z1
C6
C7
27pF
27pF
1
VCC
2
GND
3
DATA
4
CLK
Note:
1. *C4 , *R3 and *Y1 is left for PAW3502 with USB interface
2. PS/2 connector JP1 is suggested to has the pin sequence like this:
VCC, GND, DATA, CLK.
3. R4, R5, C6, C7 are for EMC immunity
Warning:
If PCBA has dual layout for PAW3402 and PAW3502, please DO NOT mount
PAW3402 in PAW3502's pin pads *1 and *14
Figure 11. Application Circuit for PAW3402 (Mechanical Encoder Input)
9.2 PAW3412 with Optical Encoder Input
VDD_5V_10R
VDD_5V
R1
*1
BL1
D1
1
LED
+
*C4
2
OPEN
3
4
VDD_5V
R6
VDD_5V_10R
10 ohm
5
6
C1
NC
BL
Z1
LED
Z2
OSC_RES
BM
VSS
BR
VDD5V
VREF
DATA
CLOCK
C3
+
0.1uF
2
NC
PAW3412
10uF
12
Z1
11
Z2
U2
D2
IR
*14
PT
10
BM1
9
BR1
R7
*
R8
*
8
R4
SHORT
7
R5
SHORT
C6
C7
VDD_5V
1
OPEN
3
U1
*R3
*Y1 OPEN
VCC JP1
1
GND
2
DATA
3
CLK
4
R9
*
C5
C2
+
27pF
27pF
0.1uF
10uF
Note:
1. *C4 , *R3 and *Y1 is left for PAW3502 with USB interface
2. PS/2 connector JP1 is suggested to has the pin sequence like this:
VCC, GND, DATA, CLK.
3. R4, R5, C6, C7 are for EMC immunity
4. For resistor value selection, refer to high or low input level
of Z1 and Z2 in the D.C. Electrical Characteristics table.
The recommended value for R7 is 470ohm.
The recommended value for R8/R9 is 5.1Kohm.
Warning:
If PCBA has dual layout for PAW3412 and PAW3502,
please DO NOT mount PAW3412 in PAW3502's pin pads *1 and *14
Figure 12. Application Circuit for PAW3412 (Optical Encoder Input)
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
10. Recommended Value for R1
Radiometric intensity of LED
Bin limits (mW/Sr at 20mA)
LED Bin Grade
Min.
Typ.
Max.
N
14.7
-
17.7
P
17.7
-
21.2
Q
21.2
Note: Tolerance for each bin will be ± 15%
25.4
R1 value (ohm), VDD=5.0V
LED Bin Grade
Min.
Typ.
Max.
N
43
56
-
P
43
56
-
Q
43
56
-
11. Z-axis Waveform
Figure 13. Z-axis Waveform
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
12. Package Information
12.1 Package Outline Drawing
12
11
10
9
8
7
1
2
3
4
5
6
11.68
0.460
10.16
0.400
3.20
0.126
1.02
0.040
1.42
0.056
5.08
0.200
0.254
0.010
0.457
0.018
1.778
0.070
Max. 12
6.223
0.245
4.826
0.190
1
2
14.22 +/- 0.2
0.560 +/-0.0079
5.461
0.215
4.064
0.160
3
4
5
6
5.080
0.200
NOTES:
4.55
0.179
12
11
10
9
8
1. All dimensions in MM/INCH.
2. Dimensions tolerance: +/- 0.10mm
3. Maxmumflash: +0.2mm
7
5.56
0.2189
0.80
0.031
Figure 14. Package Outline Drawing
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V1.0, Feb. 2008
PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
12.2 Recommended PCB Mechanical Cutouts and Spacing
16.942
0.667
4.064
0.160
1.778
0.070
1
2
3
4
5
9.068
0.357
12.877
0.507
6
7.544
0.297
10.221
0.402
6.985
0.275
8.89
0.35
1.194
0.047
0.711
0.028
12
11
10
9
8
7
27.94
1.100
0.711
0.028
3.251
0.128
All Dimension : mm/inch
Back Side
Figure 15. Recommended PCB Mechanical Cutouts and Spacing
13. Update History
Version
V0.1
Update
Creation, Preliminary 1st version
Date
02/01/2008
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]
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V1.0, Feb. 2008