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PDF CXA2067S Data sheet ( Hoja de datos )
| Número de pieza | CXA2067S | |
| Descripción | Preamplifier for High-Resolution Computer Display | |
| Fabricantes | Sony Corporation | |
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CXA2067S
Preamplifier for High-Resolution Computer Display
Description
The CXA2067S is a bipolar IC developed for high-
resolution computer displays.
30 pin SDIP (Plastic)
Features
• Wide-band amplifier: 170 MHz@–3 dB (Typ)
• Input dynamic range: 1.0 Vp-p (typ)
• High gain preamplifier (17 dB)
• R, G and B in a single package (SDIP 30 pins)
• I2C bus control
Contrast control
Sub contrast control
Brightness control
OSD contrast control
Cut-off control: 4 channels of DAC output
2 blanking level modes
(0.5 V fixed, pedestal –0.3 V)
• Sync separator for sync-on-green
• Blanking mixing function
• OSC mixing function
• Video interval detection function
• VBLK sync DAC refresh system
• 12 V power supply interlocked power saving
function
Absolute Maximum Ratings (Ta=25 °C, GND=0 V)
• Supply voltage
VCC/R/G/B 14
V
VCC 7 V
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation
PD 2.05 W
Recommended Operating Conditions
Supply voltage
VCC/R/G/B 12±0.5
VCC 5±0.5
V
V
Applications
High-resolution computer displays
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.
—1—
E99213
1 page  
Pin
Symbol
No.
Pin
voltage
18 BLKING
—
19 GND-B
23 GND-G
26 GND-R
20 BOUT
0V
24 GOUT
—
27 ROUT
21 S/H-B
25 S/H-G
—
28 S/H-R
22 VCC G
29 VCC R
12 V
12 V
CXA2067S
Equivalent circuit
VCC
10k
18
VCC VCC
4k
30k
Description
Blanking pulse input.
Set the V blanking pulse width
to 300 µs or more.
VILMAX=0.8 V
VIHMIN=2.8 V
VCCR/G/B VCCR/G/B
VCCR/G/B
2p
310
20
24
27 5k
VCC
VCC
1k
VCC
21
25 300
28
1k
Ground.
R, G and B outputs.
Brightness sample-and-hold.
Connect to GND via a capacitor.
12 V power supply. (G channel)
12 V power supply. (R channel)
—5—
5 Page 
CXA2067S
No. Measurement item Symbol
Measurement contents
Min. Typ. Max. Unit
Measure the OSD level of the output
signal when the OSD pulse is input.
GOSD1
GOSD1 : OSD=3F/SubContrast=FF
4.5 5 — Vp-p
GOSD2 : OSD=00/SubContrast=FF
9 OSD gain control
OSD interval
GOSD2
RGB output signal
OSD
level
— 0 150 mVp-p
10 Brightness control
VBRT1
Measure the black level of the RGB output
signal.
VBRT1 : Brightness=00
VBRT2 : Brightness=3F
0.4
RGB output signal
0.7
VBRT2
Black level
GND
2.2 2.6
1
3
V
BLK control
(BLK MODE=0)
Measure the BLK level of the output signal
when the BLK pulse is input.
VBLK1
—
0.3 0.6
11 V
BLK control
(BLK MODE=1)
VBLK2
BLK level (VBLK1)
BLK level (VBLK2)
GND
— 0.3 0.6
Sync separator
output rise delay
12
Sync separator
output fall delay
SDLYR
SDLYF
VDET output
rise delay
13
VDET output
fall delay
DDLYR
DDLYF
Vth=50%
Rise Delay
Vth=50%
Fall
Delay
Vth=50%
Rise
Delay
Vth=50%
0.7Vp-p
Fall
Delay
— 30 40
ns
— 60 80
— 20 40
ns
— 30 60
—11—
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet CXA2067S.PDF ] | |
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