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參數(shù)資料
| 型號(hào)： | 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(diào)頻/中波/低頻調(diào)諧器汽車音響 |
| 文件頁數(shù)： | 7/80頁 |
| 文件大?。?/td> | 1590K |
| 代理商： | UPD1723GF-211-3KE |
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7
μ
PD1723GF-013,
μ
PD1723GF-213
PIN No.
SYMBOL
PIN NAME
Radio mode LOCAL signal output pin.
This pin is valid when the initialize diode AUTOLOC
switch is 0.
Each time the
key is pressed, the LOCAL
state is inverted. In the LOCAL state, the LCD panel
“LOC” display lights.
When autotuning (seek up/down, scan up/down, auto
memory) is performed when the “LOC” display is ON,
High level is output from this pin. The LOCAL state is
common to the FM, VF, MW, and LW bands.
When the power is turned on, this pin goes low.
Mode switching signal output pin.
Its output in each mode is shown below.
DESCRIPTION
OUTPUT
TYPE
LOC
MODE
0
0
1
0
0
1
1
Mode
CW = Low
CE = High; radio, tape, and CD OFF
Radio mode
Tape mode
CD mode
Tape DK standby
CD DK standby
DK ON
Radio monitor mode
0: Low level, 1: High level
That is, when the PLL is operated, High level is output
from this pin. Therefore, use it to turn the tuner power on
and off, etc.
LOC
Local output
10
CMOS
pushpull
Mode signal
output
11
MODE
CMOS
pushpull
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