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參數(shù)資料
| 型號： | UPD1723GF-213 |
| 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(shù)： | 47/80頁 |
| 文件大?。?/td> | 1590K |
| 代理商： | UPD1723GF-213 |
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47
μ
PD1723GF-013,
μ
PD1723GF-213
Function
Symbol
In the radio mode, these keys are used as the receiving frequency up/down keys. During
clock display, these keys are used with the
Their operation is shown below.
Radio mode
These keys operate as shown below, depending on the setting of the initialize diode
matrix AUTO500 switch.
Operation by AUTO500 switch
key as the clock adjustment keys.
AUTO500
Description
Each time a key is pressed, the frequency is incremented (
key)
or decremented (
key) one step (1 channel space).
When the key is held down for approx. 0.5 seconds, the frequency changes
continuously at a speed of approx. 50 ms per step until the key is released.
Example 1)
When key released within 0.5 seconds
MAN DWN
ME
Example 2)
When key held down for more than 0.5 seconds
0
MAN UP
MAN DWN
MAN UP
RDMUTE
Pin
Within
0.5 sec
MAN UP
Key OFF
MAN UP
Key OFF
MAN UP
Key OFF
Frequency
76.0
76.1
76.2
76.3
MAN UP
76.0
76.1
76.2
76.3
76.4
76.5
76.7
RDMUTE
Pin
Key OFF
Approx. 0.5 sec
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