UPC3202GR データシートの表示（PDF） - NEC => Renesas Technology

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UPC3202GR

FREQUENCY DOWN CONVERTER FOR VHF to UHF BAND TV/VCR TUNER

NEC => Renesas Technology 

µPC3202GR

PIN EXPLANATION

Pin Voltage TYP.

Pin

Symbol above: VHF mode

No.

below: UHF mode

Function and Explanation

1 UOSC

collector

(Tr.1)

5.00

Collector pin of UHF oscillator.

Assemble LC resonator with 2 pin

3.60

through 1 pF capacitor to oscillate with

active feedback loop.

2 UOSC

base

(Tr.2)

0.0

Base pin of UHF oscillator with balance

amplifier. Connected to LC resonator

1.90

through 360 pF feedback capacitor.

3 UOSC

base

(Tr.1)

4 UOSC

collector

(Tr.2)

and UB

5 GND

0.0

Base pin of UHF oscillator with balance

amplifier. Connected to LC resonator

1.90

through 360 pF feedback capacitor.

0.0

Collector pin of UHF oscillator with

balance amplifier. Grounded through

6 pF capacitor.

Double balanced oscillator with transistor

5.00

1 and transistor 2.

And this pin is switch for VHF or UHF.

VHF operation = GND

UHF operation = 5.0 V

0.0

GND pin for VHF and UHF oscillator

0.0

6 OSC

output

2.70

VHF and UHF oscillator signal output pin.

In case of F/S tuner application,

connected PLL symthesizer IC’s input

pin.

2.35

Equivalent Circuit

24

13

REG

6

from

OSC

7 VOSC

base

(Tr.1)

8 VOSC

base

(Tr.2)

9 VOSC

collector

(Tr.2)

10 Vcc

1.95

Base pin of VHF oscillator.

Grounded through 10 pF capacitor.

0.0

1.95

Base pin of VHF oscillator.

Assemble LC resonator with 10 pin to

0.0

oscillate with active feedback loop.

3.60

Collector pin of VHF oscillator.

Connected to LC resonator through 3

5.00

pF feedback capacitor.

5.00

Power supply pin.

5.00

Data Sheet P12151EJ3V0DS00

89

7

3

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