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參數(shù)資料
| 型號： | EM84520AP |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 2-IN-ONE SCROLLING MOUSE CONTROLLER |
| 中文描述： | 2合1滾動(dòng)鼠標(biāo)控制器 |
| 文件頁數(shù)： | 2/19頁 |
| 文件大?。?/td> | 120K |
| 代理商： | EM84520AP |
EM84520
2-IN-ONE SCROLLING MOUSE CONTROLLER
2
* This specification are subject to be changed without notice.
6.28.1999
Preliminary
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTIONS
Symbol
OPT
I/O
INPUT: 200kohm pull low to VSS.
When OPT is connected to VDD, EM84520 will enter test mode. In test mode,
L will be the output of X1,while M will be the output of X2. Toggling R key can
change these output to be Y1,Y2 or Z1,Z2 respectively.
OUTPUT: 2kHz Z-axis LED driving source with A/D/E/F version.
"1"= VDD, "0"= floating
High duty is about 60us.
The RC oscillation clock output. Or 3mA sink current output for X, Y photo
emitters.
Connect 50k
±
1% precise resistor for oscillation.
Connect to 8042 auxiliary port CLK line in PS/2 mode or connect directly to RS-
232C RTS pin in serial mode. Auto-detect the operating port by this pin.
Connect to 8042 auxiliary port DATA line in PS/2 mode or connect directly to RS-
232C RXD pin in serial mode.
Three key-switches inputs. 200k
resistor pull low.
In Z-axis key mode, M key toggling can change the scrolling speed from low to
high.
Three step dynamic input impedance. If OSC.OUT is not connected to LEDs, the
dynamic input impedance will be off.
Use current comparator to measure photo-couples "ON", or "OFF".
OSC.OUT
O
OSCR
CLK/RTS
I
I/O
DATA/RXD
I/O
R
M
L
X1
X2
Y1
Y2
Z1
Z2
I
I/O
I/O
I
I
I
I
I
I
Z-axis input.
Photo mode : Three steps dynamic input impedance. Current comparator input.
Key mode : 200 k
resistor pull low. 7 levels increased by "M" key.
Voltage mode : 200 k
resistor pull low. 7 levels voltage comparator.
Mechanical mode : 13.2k
resistor pull low. Current comparator input.
Negative power.
Power line.
VSS
VDD
I/O
Function
Z1
Z2
OPT
X1
X2
Y1
Y2
L
M
R
OSCR
OSC.OUT
C
O
M
P
A
R
A
T
O
R
M
O
T
I
O
N
D
E
T
E
C
T
O
R
D
E
B
O
U
N
C
E
COUNTER
COMMAND
STATUS
SYSTEM CLOCK
GENERATOR
RC
OSCILLATION
MULTIPLEXER
DATA
I/O
TIMING
CONTROLLER
COMPARATORSENSOR
KEY-SWITCH
DETECTOR
Z-AXIS COUNTER
THREE TYPES SELECTOR
DATA/RXD
CLK/RTS
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| EM84520CP | 2-IN-ONE SCROLLING MOUSE CONTROLLER |
| EM84520DP | 2-IN-ONE SCROLLING MOUSE CONTROLLER |
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相關(guān)代理商/技術(shù)參數(shù) |
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| EM84520BP | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:2-IN-ONE SCROLLING MOUSE CONTROLLER |
| EM84520CP | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:2-IN-ONE SCROLLING MOUSE CONTROLLER |
| EM84520DP | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:2-IN-ONE SCROLLING MOUSE CONTROLLER |
| EM84520EP | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:2-IN-ONE SCROLLING MOUSE CONTROLLER |
| EM84520FP | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:2-IN-ONE SCROLLING MOUSE CONTROLLER |
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