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參數(shù)資料
| 型號(hào)： | UPD1723GF-011-3BE |
| 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)： | 12/80頁 |
| 文件大?。?/td> | 1590K |
| 代理商： | UPD1723GF-011-3BE |
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12
μ
PD1723GF-013,
μ
PD1723GF-213
PIN NAME
PIN No.
SYMBOL
Tape mode metal signal output pin.
Its output is inverted each time the
key
and METAL function key (selected by diode matrix) is
pressed. When the METAL state is selected with these
keys, the LCD panel “MTL” display lights and high
level is output from this pin.
When the power is turned on, this pin becomes low.
Tape mode noise reduction (NR) signal output pin.
When NR
1
is selected by the
key or
NOISE REDUCTION function key (selected by diode
matrix), the LCD panel “NR
1
” display lights and high
level is output from this pin.
When the CE pin is high level, the output of this pin is
inverted each time the
key is pressed.
When the power is turned on, low level is output.
This pin can be used to turn the set power on and off,
etc.
See
6 “Application Circuits”.
Crystal oscillator connection pin. It connects to a 4.5
MHz crystal oscillator.
When the clock function is used, the accuracy of the
clock is effected by the oscillation frequency accuracy
only.
Adjust the oscillation frequency while observing the
LCD oscillation waveform and PLL local oscillation
frequency.
Device ground pins.
Remarks
Always connect pins 26 and 58 to the same
potential.
GND
1
(pin 58) is analog system ground and
GND
2
is digital system ground.
DESCRIPTION
OUTPUT
TYPE
MTL
NR
POWER
GND
2
GND
1
26
58
—
XO
XI
Crystal
oscillator
24
25
CMOS
(XO)
Input (XI)
POWER
23
CMOS
pushpull
NR
1
22
CMOS
pushpull
MTL
21
Metal output
CMOS
pushpull
Power
output
Ground
Noise
reduction
output
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| UPD1723GF-013 | 制造商:NEC 制造商全稱:NEC 功能描述:PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LF TUNER CAR AUDIO |
| UPD1723GF-211-3KE | 制造商:NEC 制造商全稱:NEC 功能描述:PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LF TUNER CAR AUDIO |
| UPD1723GF-213 | 制造商:NEC 制造商全稱:NEC 功能描述:PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LF TUNER CAR AUDIO |
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