NJM2277 데이터 시트보기 (PDF) - Japan Radio Corporation

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NJM2277

VIDEO SWITCH MATRIX

Japan Radio Corporation  

NJM2277

VIDEO SWITCH MATRIX

sGENERAL DESCRIPTION

s PACKAGE OUTLINE

The NJM2277 is a Video switch for Set Top Box, and TV.

The NJM2277 includes 2 CVBS input, 2-RGB input switches.

Also it allow the inputs to be routed in 3 CVBS output, 1-RGB output.

The NJM2277 includes 5th-order Low pass Filter suppress

the noise interference to video signal.

The NJM2277 enable to control the Output Impedance for RGB outputs.

NJM2277L

NJM2277M

sFEATURES

q Operating Voltage

±5V

q 2- RGB Switches.

q 75Ω Cable Driver on all channels.

q 41dB Stop Band Rejection (@27MHz)

q Bipolar Technology

q Package Outline

SDIP28, SDMP30

sFUNCTION BLOCK DIAGRAM

q 2-Input,3-output CVBS Switches.

q Quad 5th order Butter worth Low Pass Filter.

q High Impedance output for RGB signal.

+Vcc

GND

-VEE

Comp_Sin

Comp_Vin

FB_Sin

FB_Vin

R_Sin

R_Vin

G_Sin

G_Vin

B_Sin

B_Vin

A/B Mux

High Z Cont

Filter

Switch

Control

Switch

Control

2 to 1

Switch

2 to 1

Switch

2 to 1

Switch

2 to 1

Switch

2 to 1

Switch

Filter

Filter

Filter

6dB

75Ω

6dB

75Ω

6dB

75Ω

6dB

75Ω

6dB

75Ω

6dB

75Ω

6dB

75Ω

S_Comp Out1

S_Comp Out2

TV_Comp Out

FB_Out

Red Out

Green Out

Blue Out

-1-

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