CXA2066S
Preamplifier for High Resolution Computer Display
Description
The CXA2066S is a bipolar IC developed for high
resolution computer displays.
Features
•
Built-in wide band amplifier: 140MHz @ –3dB (Typ.)
•
Input dynamic range: 1.0Vp-p (Typ.)
•
High gain preamplifier (17dB)
•
R, G, and B incorporated in a single package
•
I
2
C bus control
Contrast control
Subcontrast control
Brightness control
OSD contrast control
Cutoff control 4-channel DAC output
2 blanking level modes (0.5V fixed and Pedestal –0.6V)
ABL control pin
•
Built-in sync separator for Sync on Green
•
Built-in blanking mixing function
•
Built-in OSD mixing function
•
Video period detection function
•
Built-in sharpness function
•
Built-in VBLK synchronous DAC refresh system
Applications
High resolution computer displays
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta = 25°C, GND = 0V)
14
V
• Supply voltage
V
CC
V
CC
2
7
V
• Operating temperature
Topr
–20 to +75
°C
• Storage temperature
Tstg
–65 to +150 °C
• Allowable power dissipation P
D
2.05
W
Recommended Operating Conditions
12 ± 0.5
Supply voltage
V
CC
V
CC
2
5 ± 0.5
30 pin SDIP (Plastic)
V
V
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.
–1–
E98210-PS
CXA2066S
Pin Description
Pin
No.
Symbol
Pin
voltage
Equivalent circuit
V
CC
Description
1
SDA
1
4k
I
2
C bus standard SDA (serial data)
input/output.
VILMAX = 1.5V
VIHMIN = 3.5V
VOLMAX = 0.4V
V
CC
2
SCL
2
4k
10k
I
2
C bus standard SCL (serial clock)
input.
VILMAX = 1.5V
VIHMIN = 3.5V
V
CC
100
V
CC
3
4
5
6
V
CC
COF R
COF G
COF B
COF RGB
3
4
5
6
Cut-off adjustment DAC outputs.
The output DC is 1 to 4V.
V
CC
1k
V
CC
V
CC
14k
V
CC
8k
V
CC
V
CC
7
9
11
RIN
GIN
BIN
1.7V
(when
clamped)
300
7
9
11
1k
RGB signal inputs.
Input via the capacitor.
8
V
CC
2
5V
5V power supply.
–3–
CXA2066S
Pin
No.
Symbol
Pin
voltage
Equivalent circuit
V
CC
Description
V
CC
5k
17
YS
17
10k
YS (OSD_BLK) input.
VILMAX = 0.8V
VIHMIN = 2.8V
V
CC
V
CC
4k
V
CC
18
BLKING
18
30k
10k
Blanking pulse input.
Set the V blanking pulse width to
300µs or more.
VILMAX = 0.8V
VIHMIN = 2.8V
19
23
26
GND-B
GND-G
GND-R
0V
GNDs.
V
CC
V
CC
0.5p
20
24
27
BOUT
GOUT
ROUT
620
20
24
27
R, G, and B signal outputs.
V
CC
1k
V
CC
V
CC
21
25
28
S/H-B
S/H-G
S/H-R
300
21
25
28
1k
Brightness sample-and-hold. Connect
a capacitor to GND.
22
V
CC
12V
12V power supply.
–5–
Embedded System
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