KA2192 Просмотр технического описания (PDF) - Samsung
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KA2192 Datasheet PDF : 6 Pages
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KA2192
4 INPUT A/V SWITCH
OPERATING PRINCIPLE
ÀIn-output truth table of A/V switching IC for input switch conditions.
SW INPUT
SW1 SW2
L
L
H
L
H
H
L
H
L:0(V)
H:5(V)
DECODER OUT
A B CD
H L LL
L H LL
L L HL
L L LH
L:0.8(V)
H:2.1(V)
WOUND OUT
L-OUT R-OUT
EXT2 EXT2
EXT1 EXT1
TV
TV
SUPER SUPER
SOUND MUTE S/W
=HIGH[5]
:SOUND OFF
VIDEO OUT
V-OUT
EXT2
EXT1
TV
SUPER
TV
POLARITY
SW=H
AV= -1
GAIN SW
=H: 8dB
Y & C OUT
Y OUT C OUT
-
-
-
-
-
-
S-Y S-C
IF SW1(L)
SW2(H)
S-Y &S-C
OUT
CODE OUT
MODE OUT
2(V)
2(V)
0(V)
4(V)
FROM
EXT1,2:
2[V]
TV:0[V]
S-VHS:
4[V]
ÁSound mute switch
MUTEIN SOUND-OUT
L-OUT R-OUT
H [5V] OFF OFF
L [0V]
ON
ON
ÂGain switch
GAIN
6dB OR 8 dB
SWITCH
H [5V]
8dB
L [0V]
6dB
ÃTV polarity switch
TV
POLARITY
AV
SWITCH
H [VCC]
L [GND]
AV= -1
AV=1
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