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PDF PAN3401 Data sheet ( Hoja de datos )
| Número de pieza | PAN3401 | |
| Descripción | PS/2 OPTICAL MOUSE SINGLE CHIP | |
| Fabricantes | PixArt Imaging | |
| Logotipo |  |
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PAN3401 PS/2 OPTICAL MOUSE SINGLE CHIP
General Description
The PAN3401 is a CMOS process optical mouse sensor single chip 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
Key Specification
Compatible with Microsoft® Intelli 3D PS/2 Power Supply
and IBM® PS/2 mouse
Precise optical motion estimation technology Interface
Complete 2-D motion sensor
Optical Lens
No mechanical parts
Accurate motion estimation over a wide Speed
range of surfaces
Acceleration
High speed motion detection up to 28
inches/sec
Resolution
High resolution up to 1000 CPI
Frame Rate
Power saving mode during times of no
movement
Operating
Support three buttons (R, M, L) and three Current
axes (X, Y, Z)
Z axis support mechanical input
Package
Internal ± 10% accurate oscillator, external
crystal-less
Wide operating supply range
4.4V ~ 5.5V
PS/2
1:1
28 inches/sec
20g
400/800/1000 CPI
3000 frames/sec
12 mA @Mouse moving (Normal)
5 mA @Mouse not moving (Sleep)
Shrunk DIP12
Ordering Information
Part Number
PAN3401DK
PAN3401DK-TD
PAN3401DK-TJ
CPI
800
400
1000
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]
V1.3, Mar. 2008
1 page  
PixArt Imaging Inc.
PAN3401
www.DataSheet4U.com
PS/2 Optical Mouse Single Chip
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
Notes
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 Refer to Figure 7,8
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
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)
Type: BL, BM, BR
- 12 - mA
- 5 - mA
RPH Internal Pull-up Resistance
Type: Z1, Z2
- 50 - Kohm
RPD Internal Pull-down Resistance - 50 - Kohm
Type: BL, BM, BR, Z1, Z2
VIH Input High Voltage
VIL Input Low Voltage
Type: CLOCK, DATA
2.0 - - V
- - 0.8 V
RPH Internal Pull-up Resistance
VOL Output Low Voltage
IOH Output Pull-up Current
Type: LED
- 5 - Kohm
- - 0.6 V IOL= 10mA
- 700 -
uA VOH = 2.0V
VOL Output Voltage Low
- - 360 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]
V1.3, Mar. 2008
5 Page 
PixArt Imaging Inc.
PAN3401
www.DataSheet4U.com
PS/2 Optical Mouse Single Chip
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 PAN3401 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 PAN3401 checks 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 PAN3401 output after the PAN3401 has started a transmission. If this occurs prior to
the rising edge of the tenth clock (parity bit), the PAN3401 internally stores 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 PAN3401 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
10th
CLK
11th
CLK
………
Tsci
Tsdc Tscd
Tpi
DATA
Start bit
……… …
Bit0 - Bit7
Parity bit
Stop bit
………
Figure 7. Mouse Send Data Out to Host
8.2 Mouse Receive Data from Host
System first check to see if the PAN3401 is transmitting data. If the PAN3401 is transmitting, the system can
override the output forcing CLK to an inactive level prior to the tenth clock. If the PAN3401 transmission is
beyond the tenth clock, the system receives the data. If the PAN3401 is not transmitting or if the system chooses
to override the output, the system forces 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 PAN3401 clocks in 11 bits. Following the tenth clock, the PAN3401 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 PAN3401 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 PAN3401 that requires a response, the system must wait
for the PAN3401 to response before sending its next output.
CLK
DATA
Tmca
Inhibit
1st
CLK
2 nd
CLK
9 th
CLK
10 th
CLK
11 th
CLK
……
Tmdc
Tmci
Tmlc
Start bit
………
Bit0 - Bit7
…
Parity bit
Stop
bit
Figure 8. Mouse Receive Data from Host
Line
control bit
…
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]
V1.3, Mar. 2008
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet PAN3401.PDF ] | |
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