ka2192 Samsung Semiconductor, Inc., ka2192 Datasheet - Page 5

• Manufacturer Part Number: ka2192
• Description: 4 In Put A/v Switch
• Manufacturer: Samsung Semiconductor, Inc.

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