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參數(shù)資料
| 型號： | PT8A984 |
| 英文描述： | Remote Fan Control Decoder? |
| 中文描述： | 遙控風(fēng)扇控制解碼器？ |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 69K |
| 代理商： | PT8A984 |
Data Sheet
PT8A9701P/974P/974LP
8-Function Remote Controller
PT0090(05/02)
Ver:1
5
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Functional Description
In normal operation without ‘Turbo’, forward (backward) out-
put pin of the decoder PT8A974P/974LP sends out a 60Hz
signal. In operation with ‘Forward (Backward)’ and ‘Turbo’
combined, the output signal will be completely high. This func-
tion is depicted in Table 3.
Timing Diagram
Data Format
See Figure 4.
Figure 4. Data Format
"1"
"0"
Frequency: 500Hz, Duty Cycle: 3/4
Frequency: 500Hz, Duty Cycle: 1/4
Coding Method
Each trigger pin is triggered by corresponding bit of data in
format of “1”. The data string is 16-bit and divided to four
segments, i.e., Start Code, Data Code, Parity Code and End
code, where
Start Code = 11110.
Data Code = F B T R L F1 F3 F4 F2
F = Forward
B = Backward
R = Right
L = Left
F2 = Function 2
F3 = Function 3
Parity Code = Even parity check result
End Code is for data latch.
T = Turbo
F1= Function 1
F4 = Function4
Data code can be any combination of F, B, T, R, L, F1, F2, F3
and F4 except F&B and R&L.
P
0
7
9
A
8
T
T
P
o
p
t
p
n
P
L
4
7
7
9
A
8
T
P
P
m
o
r
t
O
p
O
9
4
d
w
r
F
d
w
k
c
B
o
b
T
d
w
r
F
z
H
0
6
w
o
L
w
o
L
d
w
k
c
B
w
o
L
z
H
0
6
w
o
L
o
b
T
+
d
w
r
F
h
g
H
w
o
L
h
g
H
o
b
T
+
d
w
k
c
B
w
o
L
h
g
H
h
g
H
Table 3
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