UPC2797 データシートの表示（PDF） - NEC => Renesas Technology

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UPC2797

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

NEC => Renesas Technology 

Pin No. Symbol

11 REG

12 IF output

Pin Voltage TYP.

above: VHF mode

below: UHF mode

Function and Explanation

6.90

6.90

Monitor pin of regulator output

voltage.

2.80

IF output pin of VHF-UHF

band functions.

2.80

µPC2797GR

Equivalent Circuit

13

12

13

VCC

14 MIX

output1

15 MIX

output2

16 VRF input

(bypass)

17 VRF input

18 GND

19 URF input

(bypass)

20 URF input

9.0

9.0

7.10

7.05

7.10

7.05

3.10

3.10

3.10

3.10

0.0

0.0

3.10

3.10

3.10

3.10

Power supply pin for VHF-

UHF band functions.

VHF and UHF MIX output pins.

These pins should be

equipped with tank circuit to

adjust intermediate frequency.

Bypass pin for VHF MIX input.

Grounded through capacitor.

17

VRF signal input pin from

antenna.

GND pin of MIX, IF amplifier

and regulator.

Bypass pin for UHF MIX input.

Grounded through capacitor.

19

URF signal input pin from

antenna.

13 14 15

from





VHF

 OSC

16

13

14 15

from





UHF

 OSC

20

4

Data Sheet P11889EJ3V0DS00

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