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CXA1145M Schematic ( PDF Datasheet ) - Sony Corporation

Teilenummer CXA1145M
Beschreibung RGB Encoder
Hersteller Sony Corporation
Logo Sony Corporation Logo 




Gesamt 15 Seiten
CXA1145M Datasheet, Funktion
SONY
RGB Encoder
. CXA1145P/M
Description
The CXA 1145P/M encoder converts an ana-
log.RGB signal to a composite video signal.
With its built-in circuit various pulses required
for an encoder, composite video outputs are ob-
tained just by inputting the composite sync and
analog RGB signal.
Features
• Single power supply 5 V
• Low power consumption (11 0 mWI
• Compatible both with NTSC and PAL
systems
• Built-in 750 driver (RGB output, composite
video output, composite sync output)
• Built-in oscillator for subcarrier
• External input of subcarrier is also possible.
• Built-in audio buffer circuit
Functions
• MTX circuit
• R-Y, B-Y MOD circuit
• Y/C MIX circuit
• 750 driver for RGB, composite video and
composite sync outputs
• PAL ALT circuit
• BF generator
• Half H killer circuit
• Subcarrier oscillator
• Audio buffer circuit
Structure
Bipolar silicon monolithic IC
Packa e Outline
CXA1145P 24 pin DIP
CXA1145M 24 pin SOP
"
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage ·
• Operating temperature
• Storage temperature
• Allowable power dissipation
Vee
Topr
Tstg
Po
Recommended Operating Condition
10
-20 to +75
-55 to +150
1250
780
• Supply voltage
Vee 5±0.25
ovc
oc
mW (CXA 1145P)
mW (CXA 1145MI
v
Unit: mm
DIP-24P-01
SOP·24P-L01
-108-
SONY reserves the right to change products and specifications without notice.
This Information does not convey any license under patent rights of SONY corporation or others.
70945-TO






CXA1145M Datasheet, Funktion
CXA1145P/M
No. Symbol
Equivalent circuit
SONY~
Description
18 YIN
19 Vcc2
18
,~,.
Input pin for the Y signal with delay after the
delay line.
+
Power supply pin for RG8 and composite video
output circuits.
Decouple with a large·enough capacity as a
massive current flows.
20 C VOUT
~
19
:r.lr
l ...
Output pin for the Y/C MIX circuit. The compo-
site video signal is output. This output can
drive a 750 load direct.
21 8 OUT
22 GOUT
23 ROUT
24 GND2
.~
1
@
@
7:7
.) Output pin for the analog RG8 signal.
Capable of driving a 750 load drive.
I
'""
GND pin for RG8 and composite output circuits.
Connect with GND 1 using low impedance as
possible.
-113-

6 Page









CXA1145M pdf, datenblatt
CXA1145P/M
S O N Y..
CXA 1145P Evaluation Board Pins Description
Symbol
RIN
GIN
BIN
SCIN
AUDIO IN
AUDIO OUT
C SYNC IN
C SYNC OUT
ROUT
GOUT
BOUT
VIDEO OUT
Vee
GND
Description
Input pin of the analog RGB signal
Pin for the external sypply of the subcarrier. For the connection in this case. See the subcarrier
external supplying method.
SCIN = 400 mVp·p to 1000 mVp-p
Input pin of the audio buffer amplifier
Output pin of the audio buffer amplifier
Input pin of the composite sync signal
C SYNCIN = TTL level (L;;;O.BV, Hs:;2.0V)
Output pin of the composite sync signal
Output pin of the analog RGM signal
Output pin of the composite video signal
Supply
Vee = 5V
GND pin
-119-

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