NJM2248V(2004) 데이터 시트보기 (PDF) - Japan Radio Corporation

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NJM2248V
(Rev.:2004)

3-INPUT VIDEO SUPER IMPOSER

Japan Radio Corporation  

NJM2248

3-INPUT VIDEO SUPER IMPOSER

■ GENERAL DESCRIPTION

The NJM2248 is 3-input video switch for video and audio signal.

Two input terminals have sink-chip clamp function and so it is

applied to fixed DC level of video signal. The other input terminal is

transistor base input for luminant signal and so luminant level may

be easily fixed by outer circuit. Its operating supply voltage range is

4.75 to 13V and bandwidth is 10MHz. Cross-talk is 70dB (at

4.43MHz).

■ FEATURES

● Operating Voltage

(+4.75V to +13V)

● 3 Input-1 Output

● Internal Clamp Function(VIN1, VIN2)

● Internal Luminance Signal Control Function (VIN3)

● Cross - talk 70dB (at 4.43MHz)

● Wide Frequency Range

● Package Outline

DIP8, DMP8 SIP8, (SSOP8)

● Bipolar Technology

■ APPLICATION

● VCR, Video Camera, AV-TV, Video Disc Player

■ PIN CONFIGURATION

■ PACKAGE OUTLINE

NJM2248D

NJM2248M

NJM2248V

NJM2248L

NJM2248D

NJM2248M

NJM2248V

■ BLOCK DIAGRAM

NJM2248L

■ INPUT CONTROL SIGNAL-OUTPUT SIGNAL

SW1

L

H

L/H

SW2

L

L

H

OUTPUT SIGNAL

VIN1

VIN2

VIN3

Ver.2004-02-17

-1-

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