CXA2075M
RGB Encoder
Description
The CXA2075M 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.
Compared to the CXA1645M, the CXA2075M has
superior points as follows:
1. The number of parts reduced (5 parts)
Clamp capacitor
Regulator capacitor resistor
Resistor for filter
2. External parts reduced by the internal TRAP
(External TRAP can be also selected)
3. Higher band of R, G, B OUT
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
Block Diagram and Pin Configuration
CVOUT
ROUT
YTRAP
GOUT
GND2
BOUT
Vcc2
YOUT
COUT
NC
NC
NC
24 pin SOP (Plastic)
Applications
Video games and personal computers
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings
12
V
•
Supply voltage
V
CC
•
Operating temperature Topr
–20 to +75
°C
•
Storage temperature Tstg –65 to +150
°C
•
Allowable power dissipation
P
D
780
mW
•
Input pin applied voltage
RIN, GIN, BIN, SCIN, NPIN, SYNCIN and Vcc pins
voltage or below, GND pin voltage or above
Recommended Operating Condition
Supply voltage
V
CC
1, 2
5.0 ± 0.25
V
24
23
22
21
20
VIDEO
OUT
19
18
17
16
15
14
13
TRAP
SWITCH
INTERNAL
TRAP
DELAY
SYNC
ADD
R-OUT
G-OUT
B-OUT
Y/C MIX
75
DRIVER
75
DRIVER
BPF
R-Y
Modulator
REGULATOR
B-Y
Modulator
PHASE
SHIFTER
8
PULSE
GEN
9
10
11
12
MATRIX
LPF
LPF
CLAMP
SIN-PULSE
1
2
3
4
5
6
7
GIN
BFOUT
RIN
NC
SYNCIN
GND1
NPIN
BIN
NC
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.
SCIN
–1–
Vcc1
NC
E96X23
SONY [ SONY CORPORATION ]
