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參數(shù)資料
| 型號： | GP2W2004YK |
| 英文描述： | INFRARED DATA COMMUNICATION DEVICE |
| 中文描述： | 紅外數(shù)據(jù)通信設(shè)備 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大?。?/td> | 85K |
| 代理商： | GP2W2004YK |
GP2W2003YK/GP2W2004YK
Fig.10
Reset Function
Optical
signal
V
o
RESET INPUT (High level input voltage 2.1V
～
V
CC
)
AGCN
Gap time
13
μ
s
MIN.
The RESET input will be turned on with
low level pulse input (V
ILRE
≤
0.6V) of more than 13
μ
s
t
ret
t
ret
: The time period until AGCN
The
“
RESET
”
terminal is used to recover the receiver sensitivity to its maximum level.
Sharp IrDA control Transceiver has a built-in capability to adjust the receiver sensitivity (Threshold level adjustment).With
this function, in order to receive very weak infrared signals right after very strong infrared signals, following input to
“
RESET
”
terminal provides the receiver sensitivity recovery to its maximum level.
The RESET input must be pulsed to the transcever within the gap time for correct operation.
The timing for
“
RESET
”
must be adjusted at the controlled IC.
P
F
0
25
10 0
600
500
400
300
200
100
25
70
60
50
75
100
Ambient temperature T
a
(
°
C)
Pulse width
≤
3.3
μ
s
Duty ratio
≤
11
%
R
%
)
0
30
20
40
60
80
100
120
10
10
30
50
70
90
Ambient Temperature Ta (
°
C)
V
CC
=
3.3V
Fig.11 Peak Forward Current vs. Ambient
Temperature
Fig.12 Relative Communication Distance vs.
Ambient Temperature
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|---|---|
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