CXA1645

Manufacturer Part NumberCXA1645
ManufacturerSony
CXA1645 datasheet
 


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RGB Encoder
For the availability of this product, please contact the sales office.
Description
The CXA1645P/M is an encoder IC that converts
analog RGB signals to a composite video signal. This
IC has various pulse generators necessary for
encoding. Composite video outputs and Y/C outputs for
the S terminal are obtained just by inputting composite
sync, subcarrier and analog RGB signals.
It is best suited to image processing of personal
computers and video games.
Features
• Single 5V power supply
• Compatible with both NTSC and PAL systems
• Built-in 75Ω drivers
(RGB output, composite video output, Y output, C
output)
• Both sine wave and pulse can be input as a
subcarrier.
• Built-in band pass filter for the C signal and delay
line for the Y signal
• Built-in R-Y and B-Y modulator circuits
• Built-in PAL alternate circuit
• Burst flag generator circuit
• Half H killer circuit
Applications
Image processing of video games and personal
computers
Block Diagram and Pin Configuration
GND2
ROUT
GOUT
23
24
22
G-OUT
R-OUT
B-OUT
CLAMP
CLAMP
CLAMP
1
2
3
GND1
RIN
GIN
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.
CXA1645P/M
24 pin DIP (Plastic)
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings
• Supply voltage
• Operating temperature Topr
• Storage temperature
• Allowable power
dissipation
Recommended Operating Condition
Supply voltage
BOUT
CVOUT
V
2
FO
CC
21
19
18
20
VIDEO
OUT
DELAY
CLAMP
SIN-PULSE
4
5
6
7
BIN
NC
SCIN
NPIN
– 1 –
24 pin SOP (Plastic)
V
CC
–20 to +75
Tstg
–65 to +150
P
CXA1645P 1250 mW
D
CXA1645M
V
1, 2 5.0 ± 0.25
CC
YTRAP
YOUT
COUT
V
17
15
16
Y/C
75
75
MIX
DRIVER
DRIVER
REGULATOR
SYNC
ADD
BPF
R-Y
Modulator
B-Y
Modulator
PULSE
PHASE
GEN
SHIFTER
8
9
10
BFOUT
YCLPC
SYNCIN
14
V
°C
°C
780 mW
V
I
REF
REF
14
13
12
11
NC
V
1
CC
E93411A41-ST

CXA1645 Summary of contents