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NJM2277
VIDEO SWITCH MATRIX
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GENERAL DESCRIPTION
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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 5
th
-order Low pass Filter suppress
the noise interference to video signal.
The NJM2277 enable to control the Output Impedance for RGB outputs.
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FEATURES
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Operating Voltage
5V
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2-Input,3-output CVBS Switches.
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2- RGB Switches.
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Quad 5
th
order Butter worth Low Pass Filter.
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75
Cable Driver on all channels.
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High Impedance output for RGB signal.
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41dB Stop Band Rejection (@27MHz)
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Bipolar Technology
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Package Outline
SDIP28, SDMP30
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FUNCTION BLOCK DIAGRAM
NJM2277L
NJM2277M
+Vcc
GND
-VEE
6dB
75
6dB
75
6dB
75
6dB
75
6dB
75
Filter
6dB
75
Filter
6dB
75
Filter
2 to 1
Switch
2 to 1
Switch
2 to 1
Switch
2 to 1
Switch
2 to 1
Switch
High Z Cont
Comp_Sin
Comp_Vin
FB_Sin
FB_Vin
R_Sin
R_Vin
G_Sin
G_Vin
B_Sin
B_Vin
Blue Out
Green Out
Red Out
FB_Out
TV_Comp Out
S_Comp Out2
S_Comp Out1
Filter
A/B
Mux
Switch
Control
Switch
Control
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