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U2320B

VHF/UHF Tuner-IC

Description

This tuner IC requires a power supply of 12 V and

performs the function of two separate oscillators and

mixers, SAW-filter driver and dual state band switch.

Features

D

Frequency range from 48 to 860 MHz

D

Band A: balanced high impedance mixer input and

amplitude controlled oscillator

D

SAW filter driver with low impedance output

D

Voltage regulator for stable operating characteristics

D

ESD protection on all pins except oscillator pins and

RF-inputs

D

Band B: balanced low impedance mixer input and

symmetrical oscillator

Block Diagram

1

3

4

6 5 7

15

2

Osc. A

Osc. B

Voltage stabiliser

Band switch

8

Mixer output

SAW鈥揻ilter driver

13

14

10

RF

Band A

19

18

20

17

Figure 1.

Band B

95 10713

9

16

12 11

Ordering Information

Extended Type Number

U2320B-FLG3

Package

SO20 plastic package

Remarks

Taped and reeled

TELEFUNKEN Semiconductors

Rev. A1, 29-May-96

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  英文版
  VHF/UHF Tuner-IC
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