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UPC2775GS Scheda tecnica(PDF) 4 Page - NEC

Il numero della parte UPC2775GS
Spiegazioni elettronici  FREQUENCY DOWN CONVERTER FOR VHF-UHF BAND TV/VCR TUNER
PDF  16 Pages
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Produttore elettronici  NEC [NEC]
Homepage  http://www.nec.com/
Logo NEC - NEC

UPC2775GS Scheda tecnica(HTML) 4 Page - NEC

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µPC2775GR/GS
4
Data Sheet P10194EJ3V0DS00
Symbol
IF
output
VCC
MIX
output 1
MIX
output 2
VRF
input
(bypass)
VRF input
GND
URF input
(bypass)
URF input
Equivalent circuit
Pin No.
11
12
13
14
15
16
17
18
19
20
Pin voltage TYP.
above: V mode (V)
below: U mode (U)
5.80
5.65
9.0
9.0
7.05
6.95
7.05
6.95
2.75
2.80
2.75
2.80
0
0
–
2.65
–
2.65
- - - - - - - - - - - - -
- - - - - - - - - - - - -
- - - - - - - - - - - - -
- - - - - - - - - - - - -
- - - - - - - - - - - - -
- - - - - - - - - - - - -
- - - - - - - - - - - - -
Function and Explanation
IF output pins of VHF-UHF band
functions.
Higher output power can be obtained
by connecting registor (ex. 470
Ω) to
the ground.
Power supply for VHF-UHF band
functions.
VHF and UHF MIX output pin.
These pins should be equipped with
tank circuit to adjust frequency.
VRF signal input pin from antenna.
Bypass pin for VHF MIX input.
Grounded through capacitor.
GND pin of MIX, IF amplifier and
regulator.
Bypass pin for UHF MIX input.
Grounded through capacitor.
URF signal input pin from antenna.
- - - - - - - - - - - - -
- - - - - - - - - - - - -
11
12
13
15
From
VHF
OSC
14
13
16
17
15
From
UHF
OSC
14
13
20
19



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