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Sony Semiconductor Electronic Components Datasheet

CXA1785AR Datasheet

US Audio Multiplexing Decoder

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CXA1785AR
RGB Decoder/Driver
For the availability of this product, please contact the sales office.
Description
The CXA1785AR is an RGB decoder/driver
designed to drive LCD panels. This IC converts
composite video signals, Y/C signals and Y/color
difference signals into RGB signals used for driving
LCDs.
48 pin LQFP (Plastic)
Features
Both NTSC/PAL compatible
Supports composite inputs, Y/C inputs and Y/color
difference input
Band pass filter, trap and delay line
Sharpness function
γ compensation circuit
R, B output delay time adjustment circuit
Polarity reverse circuit
Applications
Color liquid crystal viewfinders
Liquid crystal projectors
Industrial monitors
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta=25°C)
Supply voltage
VCC1-GND
6
V
Supply voltage
VCC2-VEE
15
V
Supply voltage
GND-VEE
10
V
Input pin voltage
VIN
VCC1
V
Operating temperature Topr –30 to +85 °C
Storage temperature Tstg –55 to +150 °C
Allowable power dissipation
PD 560 mW
Operating Conditions
Supply voltage
VCC1-GND 4.25 to 5.25
Supply voltage
VCC2-GND 4.25 to 14.0
Supply voltage
VCC2-VEE 11.25 to 14.0
Supply voltage
VEE-GND –8.75 to 0
V
V
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—
E93Z28-TE


Sony Semiconductor Electronic Components Datasheet

CXA1785AR Datasheet

US Audio Multiplexing Decoder

No Preview Available !

Block Diagram
CXA1785AR
36 35 34 33 32 31 30 29 28 27 26 25
SYNC OUT 37
SYNC SEP 38
EXT B IN 39
SYNC
SEP
BGP GEN
BGP
EXT G IN 40
B-Y
G-Y
DL γ
γ
VREF
BRIGHT
INV
BRIGHT
INV
EXT R IN 41
R-Y
Y
DL γ
BRIGHT
INV
CONTRAST 42
43 Vcc1
F ADJ 44
CLAMP 45
AGC FILTER 46
AGC OUT 47
CLAMP
AGC AMP
G
GEN
AGC DET
PICTURE
P REG3
REG2
N
REG1
COMP Y/C
TRAP
HPF
DEMOD
N PN P
PAL SW
PHASE
SHIFT
EXT
SYNC
P
F/F
N
P
IDENT
N
COLOR
KILLER
APC
PICTURE 48
H. FILTER
ACC
COMP Y/C
PAL ON
ACC DET
24 B OUT
23 B DC DET
22 G OUT
21 G DC DET
20 R OUT
19 R DC DET
VEE 18
GND 17
VXO
HUE
16 VXO OUT
15 APC FILTER
14 VXO IN
NT/PAL/
COLOR
DEFFER
13 HUE
1 2 3 4 5 6 7 8 9 10 11 12
—2—


Part Number CXA1785AR
Description US Audio Multiplexing Decoder
Maker Sony Corporation
Total Page 29 Pages
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