UPC2775GS 查看數據表（PDF） - NEC => Renesas Technology
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UPC2775GS Datasheet PDF : 16 Pages
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µPC2775GR/GS
PIN EXPLANATION
Pin No.
1
2
3
4
5
6
Symbol
Pin voltage TYP.
above: V mode (V)
below: U mode (U)
Function and Explanation
UOSC
collector
(Tr. 1)
6.90
-------------
6.25
Collector pin of UHF oscillator.
Assemble LC resonator with 2 pin
through capacitor ~ 1 pF to oscillate
with active feedback Loop.
UOSC
base (Tr. 2)
6.00
-------------
3.90
Base pin of UHF oscillator with
balance amplifier. Connected to LC
resonator through feedback capacitor
~ 300 pF.
UOSC
base (Tr. 1)
6.00
-------------
3.90
Base pin of UHF oscillator with
balance amplifier. Connected to LC
resonator through feedback capacitor
~ 300 pF.
UOSC
collector
(Tr. 2)
6.90
-------------
6.25
Collector pin of UHF oscillator with
balance amplifier. Assemble LC
resonator with 3 pin through capacitor
~ 1 pF to oscillate with active feedback
Loop. Double balanced oscillator with
transistor 1 and transistor 2.
UB
Switching pin for VHF or UHF
0.0
operation.
- - - - - - - - - - - - - UHF operation = 9.0 V
9.0
VHF operation = GND
OSC
output
5.40
-------------
UHF and VHF oscillator output pin.
In case of F/S tuner application,
connected PLL synthesizer IC’s input
pin.
5.40
Equivalent circuit
31
5
42
REG.
6
From
OSC
7
GND
0.0
VHF and UHF oscillators’ GND pin.
-------------
0.0
8
VOSC
3.50
Base pin of VHF oscillator with
base (Tr. 1) - - - - - - - - - - - - - balance amplifier.
5.90
Grounded through capacitor ~ 10 pF.
9
VOSC
Base pin of VHF oscillator with
3.50
base (Tr. 2)
balance amplifier. Assemble LC
-------------
resonator with 10 pin to oscillate with
5.90
active feedback Loop.
10
VOSC
Base pin of VHF oscillator with
6.20
collector
balance amplifier. Connected to LC
-------------
(Tr. 1)
resonator through feedback capacitor
6.90
~ 3 pF.
8 10
9
REG.
Data Sheet P10194EJ3V0DS00
3
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