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PDF PAN3402 Data sheet ( Hoja de datos )
| Número de pieza | PAN3402 | |
| Descripción | PS/2 OPTICAL MOUSE SOC | |
| Fabricantes | PixArt Imaging | |
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PAN3402
PAN3402 PS/2 OPTICAL MOUSE SOC
General Description
PAN3402 is a CMOS process optical mouse SOC with PS/2 interface that serves as a non-mechanical motion
estimation engine for implementing a computer mouse.
Features
Single 5.0 volt power supply
Compatible with Microsoft Intelli 3D PS/2
and IBM PS/2 mouse
Key Specification
Power
Supply
Wide operating
4.5V ~ 5.5V
supply
range
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
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 mechanical input
Optical Lens 1:1
Speed
28 inches/sec
Acceleration 20g
Resolution 500 / 800 / 1000
Frame Rate 3000 frames/sec
Operating 12 mA @Mouse moving (Normal)
Current
5 mA @Mouse not moving (Sleep)
Package
Shrunk DIP12
Internal ± 10% accurate oscillator, external
resonator-less
Ordering Information
Part Number
PAN3402DK
PAN3402DK-LH
CPI
800
800
Sensor Rotate
0˚
-90˚
Wheel Type
Mechanical
Mechanical
Device Type
2D3B/3D3B
2D3B/3D3B
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: [email protected]
V1.0, Feb. 2008
1 page  
PixArt Imaging Inc.
PAN3402
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
Min. Typ. Max. Unit
Tmca Mouse CLK Active Time
- 40 - us
Tmci Mouse CLK Inactive Time
- 40 - us
Tmdc Time that Mouse Sample DATA from CLK Rising Edge - 14 - us
Tsca System CLK Active Time
- 40 - us
Tsci System CLK Inactive Time
- 40 - us
Tsdc Time from DATA Transition to Falling Edge of CLK
- 12 - us
Tscd Time from Rising Edge of CLK to DATA Transition
- 28 - 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
Min. Typ. Max. Unit
Notes
Type: PWR
IDD
Supply Current
Mouse moving (normal)
IDD
Supply Current
Mouse not moving (sleep)
- 12 - mA
- 5 - mA
Type: BL, BM, BR
RPH Internal Pull-up Resistance
- 50 - Kohm
Type: Z1, Z2
RPD Internal Pull-down Resistance - 50 - Kohm
Type: BL, BM, BR, Z1, Z2
VIH Input High Voltage
2.0 - - V
VIL Input Low Voltage
- - 0.8 V
Type: CLOCK, DATA
RPH Internal Pull-up Resistance
- 5 - Kohm
VOL Output Low Voltage
- - 0.6 V IOL= 1mA
IOH Output Pull-up Current
- 1 - mA VOH=2.0V
Type: LED
VOL Output voltage LOW
- - 300 mV I OL = 25mA
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
5
PixArt Imaging Inc.
E-mail: [email protected]
V1.0, Feb. 2008
5 Page 
PixArt Imaging Inc.
PAN3402
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.
CLK
Tsca
1st
CLK
2nd
CLK
Tsci
Tsdc Tscd
10th
CLK
11th
CLK
………
Tpi
DATA
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.
CLK
DATA
Inhibit
Tmca
1st
CLK
2 nd
CLK
9 th
CLK
10 th
CLK
Tmdc
Tmci
Start bit
………
Bit0 - Bit7
…
Parity bit
Stop
bit
11 th
CLK
……
Tmlc
Line
control bit
…
Figure 10. Mouse Receive Data from Host
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
11
PixArt Imaging Inc.
E-mail: [email protected]
V1.0, Feb. 2008
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet PAN3402.PDF ] | |
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