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參數(shù)資料
| 型號： | HT6240-002 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | RES THICK FILM 100 OHM 1 W 7KV |
| 中文描述： | 紅外遙控編碼器 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 146K |
| 代理商： | HT6240-002 |
HT6240-002
8
December 16, 1999
0
1
1 < 2 !
Fig. 7 The formation of the 1-word transmission code
1 < 2 !
-
-
1 < 2 !
-
-
-
1 < 2 !
1 < 2 !
Fig. 8 A legal key will send at least five words
On table 2, the relationship between the key
matrix and the transmission code is shown when
custom code= 0000 0000 . The asterisks means
that HT6240-002 can just send five words at a
time even if a legal key is pressed for a long
time. The others mean that HT6240-002 will
send five or six words, even some more words if
a legal key is still pressed.
Table 2
OF0 OF1 OF2 OF3 OF4 OF5 OF6 OF7
IE0
00
04
08
0C
10* 14* 18* 1C*
IE1
01
05
09* 0D* 11* 15* 19* 1D*
IE2
02
06
0A* 0E* 12* 16* 1A* 1E*
IE3
03
07
0B* 0F* 13* 17* 1B* 1F*
There are 64 instructions when the custom
code= 0000 0000 in HT6240-002. The trans-
mission output CT is still L and the transmis-
sioncodewillnotbesentwhentwoormorekeys
are pressed simultaneously.
If custom code
the formation of the transmission code. The
transmission code consists of a head pulse, 8-bit
custom code and 8-bit data code. Fig. 10 shows
bit 0 and bit 1 .
0000 0000 then Fig. 9 shows
The formation of a 1-word transmission code
without carrier is shown in detail in Fig.11.
OutputCTshouldcombinewiththecarrierwhen
CT is high.
< 0 0 !
@ % )
0 < !
0 < !
0
1
2
,
0
1
2
,
! &
% % &
Fig. 9 The formation of the transmission code when custom code
0000 0000
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