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參數(shù)資料
| 型號： | UPC3202GR |
| 廠商： | NEC Corp. |
| 英文描述： | FREQUENCY DOWN CONVERTER FOR VHF to UHF BAND TV/VCR TUNER |
| 中文描述： | 頻率向下轉(zhuǎn)換器甚高頻到超高頻波段電視/錄像機(jī)調(diào)諧器 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 157K |
| 代理商： | UPC3202GR |
Data Sheet P12151EJ3V0DS00
3
μ
PC3202GR
PIN EXPLANATION
Pin
No.
Symbol
Pin Voltage TYP.
above: VHF mode
below: UHF mode
Function and Explanation
Equivalent Circuit
5.00
1
UOSC
collector
(Tr.1)
3.60
Collector pin of UHF oscillator.
Assemble LC resonator with 2 pin
through 1 pF capacitor to oscillate with
active feedback loop.
0.0
2
UOSC
base
(Tr.2)
1.90
Base pin of UHF oscillator with balance
amplifier. Connected to LC resonator
through 360 pF feedback capacitor.
0.0
3
UOSC
base
(Tr.1)
1.90
Base pin of UHF oscillator with balance
amplifier. Connected to LC resonator
through 360 pF feedback capacitor.
0.0
4
UOSC
collector
(Tr.2)
and UB
5.00
Collector pin of UHF oscillator with
balance amplifier. Grounded through
6 pF capacitor.
Double balanced oscillator with transistor
1 and transistor 2.
And this pin is switch for VHF or UHF.
VHF operation = GND
UHF operation = 5.0 V
2
REG
4
1
3
0.0
5
GND
0.0
GND pin for VHF and UHF oscillator
2.70
6
OSC
output
2.35
VHF and UHF oscillator signal output pin.
In case of F/S tuner application,
connected PLL symthesizer IC’s input
pin.
from
OSC
6
1.95
7
VOSC
base
(Tr.1)
0.0
Base pin of VHF oscillator.
Grounded through 10 pF capacitor.
1.95
8
VOSC
base
(Tr.2)
0.0
Base pin of VHF oscillator.
Assemble LC resonator with 10 pin to
oscillate with active feedback loop.
3.60
9
VOSC
collector
(Tr.2)
5.00
Collector pin of VHF oscillator.
Connected to LC resonator through 3
pF feedback capacitor.
7
9
8
5.00
10
Vcc
5.00
Power supply pin.
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