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UPC2797 Datasheet(PDF) 4 Page - NEC

Part # UPC2797
Description  FREQUENCY DOWN CONVERTER FOR VHF TO UHF BAND TV/VCR TUNER
PDF  20 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPC2797 Datasheet(HTML) 4 Page - NEC

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µPC2797GR
4
Data Sheet P11889EJ3V0DS00
Pin Voltage TYP.
Pin No.
Symbol
above: VHF mode
Function and Explanation
Equivalent Circuit
below: UHF mode
11
REG
6.90
Monitor pin of regulator output
6.90
voltage.
12
IF output
2.80
IF output pin of VHF-UHF
band functions.
2.80
13
VCC
9.0
Power supply pin for VHF-
9.0
UHF band functions.
14
MIX
7.10
VHF and UHF MIX output pins.
output1
7.05
These pins should be
15
MIX
7.10
equipped with tank circuit to
output2
7.05
adjust intermediate frequency.
16
VRF input
3.10
Bypass pin for VHF MIX input.
(bypass)
Grounded through capacitor.
3.10
17
VRF input
3.10
VRF signal input pin from
antenna.
3.10
18
GND
0.0
GND pin of MIX, IF amplifier
and regulator.
0.0
19
URF input
3.10
Bypass pin for UHF MIX input.
(bypass)
Grounded through capacitor.
3.10
20
URF input
3.10
URF signal input pin from
antenna.
3.10
12
13
17
from
VHF
OSC
16
13
14 15
19
from
UHF
OSC
20
13
14
15



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