Sony CXA2119M Datasheet
– 1 –
CXA2119M
E97511-PS
Y color difference I/F
Description
The CXA2119M is a video switch IC developed for
Y color difference I/F used in televisions.
Features
• Two YCbCr input systems, one RGB input system,
one YCbCr output system
• Three inputs, one output for composite video signal
• On-chip matrix circuit for RGB signal → YCbCr
signal
• On-chip 6dB amplifier
• Has YM function relative to YCbCr input
Absolute Maximum Ratings (Ta = 25°C, GND = 0V)
• Supply voltage VCC 12 V
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation
PD 1W
•Pin voltage –0.3 to VCC + 0.3 V
Operating Conditions
Supply voltage VCC 9.0 ± 0.5 V
Block Diagram
Applications
TV
Structure
Bipolar silicon monolithic IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
28 pin SOP(Plastic)
6dB
0/–6dB
SW
6dB
CLP
6dB
CLP
6dB
CLP
6dB
CLP
6dB
CLP
6dB
CLP CLP CLP CLP
6dB 6dB 6dB
RGB YCbCr
MATRIX
Cr Cb Y
2
3
4
5
6
7
8
9
10
11
12
13
14
1
Y1 IN
Cb1 IN
Cr1 IN
INPUT SEL
Y2 IN
Cb2 IN
Cr2 IN
CLP
R IN
G IN
B IN
YCLP
CbCLP
CrCLP
15
16
17
18
19
20
21
22
23
24
25
26
2728
SIG3 IN
SEL2
SIG2 IN
SEL1
SIG1 IN
V
CC
SIG OUT
YM
YS
GND
Cr OUT
Cb OUT
Y OUT
NC
– 2 –
CXA2119M
Pin Description
Pin
No.
Symbol
Equivalent circuit
Description
1
Y1 IN
2
Cb1 IN
3
Cr1 IN
5
Y2 IN
6
Cb2 IN
7
Cr2 IN
YCbCr signal input pins.
Input a YCbCr standard (100% color bar,
0.7Vp-p) signal.
The input signal pedestal level is clamped
to 4V.
4
INPUT SEL
Control pin for two YCbCr inputs selection
switch.
High: Y1, Cb1, Cr1 inputs selected
Low: Y2, Cb2, Cr2 inputs selected
VILMAX = 1V
VIHMIN = 3V
8
CLP
Clamp pulse input pin.
High: CLP ON
Low: CLP OFF
VILMAX = 2.5V
VIHMIN = 4V
9
R IN
10
G IN
11
B IN
RGB signal input pins.
Input 100 IRE, 0.7Vp-p signals via
capacitors.
2
3
5
6
7
1
VCC
1.5k
40k
6.86k 6.86k
190µ
4
VCC
129
VCC
50µ
2.5V
VCC
129
VCC
3.4V
8
40k
9
10
11
VCC
129
40k
3.5V
VCC
55µ
120k
– 3 –
CXA2119M
12
YCLP
13
CbCLP
14
CrCLP
15 NC
Capacitor connection pins for clamping the
YCbCr signal made from the RGB signal.
16
Y OUT
17
Cb OUT
18
Cr OUT
YCbCr signal output pins.
Output pedestal level becomes 3.8V.
20
YS
YSSW control pin.
High: RGB input system selected
Low: YCbCr input system selected
VILMAX = 1V
VIHMIN = 3V
21
YM
YMSW control pin.
High: –6dB signal selected
Low: 0dB signal selected
VILMAX = 1V
VIHMIN = 3V
NC pin.
19 GND
GND pin.
13
14
VCC
1.5k
4k
16k
12
16
17
18
VCC
100µ
940µ
VCC
129
VCC
100µ
2.5V
20
VCC
129
VCC
21
100µ
Pin
No.
Symbol
Equivalent circuit
Description
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