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參數資料
| 型號： | UPD1723GF-211-3KE |
| 廠商： | NEC Corp. |
| 英文描述： | PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LF TUNER CAR AUDIO |
| 中文描述： | 鎖相環(huán)頻率合成器和控制器的調頻/中波/低頻調諧器汽車音響 |
| 文件頁數： | 44/80頁 |
| 文件大?。?/td> | 1590K |
| 代理商： | UPD1723GF-211-3KE |
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44
μ
PD1723GF-013,
μ
PD1723GF-213
Function
Symbol
Key
Operation
When M2S switch = 0
Memory unwritable state
The scanning operation is canceled and the preset memory contents cor-
responding to the pressed key is called.
Memory writable state (See the
key below.)
The held frequency is written to the preset memory corresponding to the
pressed key and the memory writable state is canceled. Then, the hold state
is held for 2 seconds. If an operations not performed during this time, the
next station is searched.
(Example)
M1
(TP1)
M2
(TP2)
M3
(TP3)
M4
M5
M6
SCAN UP
SCAN DWN
ME
Less than 5 sec
Hold
Less than 5 sec
Hold
2 sec
Hold
Seek
Station
Seek
M1
(TP1)
ch
ch
Memory Writable
Key
Operation
Display
Display
Example
M1
(TP1)
OFF
M1
(TP1)
ON
Less than 5 sec
Less than
2 sec
Hold
M1 Call
Hold
Seek
RDMUTE Pin
Station
Contents of M1
Key
Key
ch
ch
When M2S switch = 1
When key released within 2 seconds
The preset memory contents corresponding to the pressed key are called
and the scan operation is reset the moment the key is released.
(Example)
When key pressed for more than 2 seconds
The held frequency is written to the preset memory corresponding to the
pressed key 2 seconds after the key has been passed for 2 seconds. 2
seconds after the end of writing, hold ends and the next station is searched
(seek operation).
(Example)
Station
Seek
RDMUTE Pin
Less than 5 sec
2 sec
M1
(TP1)
Key
2 sec
Hold
Hold
Hold
Seek
Pressed
Continuously
ch
ch
ME
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