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參數(shù)資料
| 型號(hào)： | UPD6122G-001 |
| 廠商： | NEC Corp. |
| 英文描述： | REMOTE CONTROL TRANSMISSION CMOS IC |
| 中文描述： | 遙控傳輸CMOS集成電路 |
| 文件頁數(shù)： | 11/28頁 |
| 文件大?。?/td> | 170K |
| 代理商： | UPD6122G-001 |
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μ
PD6121, 6122
11
18 ms to 36 ms
3
27 ms
4.5 ms
9 ms
13.5 ms
Leader Code
Custom Code
8 bits
Custom Code’
8 bits
Data Code
8 bits
Data Code
8 bits
Stop Bit
1 bit
58.5 ms to 76.5 ms
REM output
4. REMOTE OUTPUT WAVEFORM (NEC TRANSMISSION FORMAT:
ONE-SHOT COMMAND TRANSMISSION MODE)
When f
OSC
= 455 kHz
(1) Remote (REM) output (from stage 2 , transmission occurs only when key is kept depressed)
(2) Magnification of stage 1
(3) Magnification of waveform 3
(4) Magnification of waveform 2
(5) Carrier waveform (Magnification of HIGH period of codes)
Remark
If a key is kept depressed, the second and subsequent times, only the leader code and the stop
bit are transmitted, which allows power savings for the infrared-emitting diode. If a command is
issued continuously in the same way the second and subsequent times as the first time, refer to
7. ONE-SHOT/CONTINUOUS COMMAND TRANSMISSION MODE
.
1.125 ms
9 ms
13.5 ms
4.5 ms
0.56 ms
2.25 ms
0
1
1
0
0
REM output
58.5 to 76.5 ms
108 ms
1
108 ms
2
REM output
9 ms
11.25 ms
2.25 ms
Leader Code
0.56 ms
Stop Bit
REM output
REM output
9 ms or 0.56 ms
Carrier frequency: fc = fosc/12 = 38 kHz
8.77 μs
26.3 μs
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