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PDF CXA1145M Data sheet ( Hoja de datos )

Número de pieza CXA1145M
Descripción RGB Encoder
Fabricantes Sony Corporation 
Logotipo Sony Corporation Logotipo



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No Preview Available ! CXA1145M Hoja de datos, Descripción, Manual

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

1 page




CXA1145M pdf
CXA1145P/M
No. Symbol
Equivalent circuit
SONY.,
Description
~
13 I REF 13
r~ ~
('
Pin to determine the inner reference current.
Connect to GND via a 27 kO resistor.
7i'T
~
14
VREF
14
Pin for the inner reference voltage. Connect to
GND with 10 ,.F.
I
£;;'r
T.
15
C OUT
15
1r-
£7i'T
Chroma signal output pin. Connect a Band Pass
Filter (BPF) between this pin and pin 17 (C IN).
1r-
Y signal output pin.
16 Y OUT
16
Connect a delay line between this pin and pin
18 (YIN).
I
£--;;'r
J
17 CIN 17
l7i
~
7tT
Input pin for the chroma signal without harmon-
ic distortion after BPF.
-112-

5 Page





CXA1145M arduino
CXA1145P/M
SONY11
Application Circuit (NTSC mode)
R G 8 V1DEO
OUT OUT OUT OUT
.---------------.----{)Wv
<How to supply subcarrier
externally>
·
When a subcarrier is added externally,
this section will be as follows:
~
To.1"
T26 SIN WAVE
400 to 1000 mVp-p
< How to adjust the oscillation
level>
Regulating the trimmer capacitor, set XO
out level between 400 to 1000 mVp-p.
R G8
IN IN IN
fo ADJ
ALQIO AWIO C SYNC C SYI\C
IN OUT JN OUT
Application Circuit (PAL mode)
* Metal film resistor ± 1%
BPF: Toko H287BSJS-3108HWD
DL: Matsushita ELB-5F020N
r-----------~-o~~~
<How to ... >
When a subcarrier is added externally,
this section will be as follows:
~-
TQ.1)J
T26 SIN WAVE
400 to 1000 mVp-p
<How to adjust the oscillation
level>
Regulating the timmer capacitor, set XO
out level between 400 to 1000 mVp-p.
* Metal film resistor ± 1%
RG 8
IN IN IN
AL0K> AUDIO C SYNC C SYNC
IN OUT IN OUT
BPF: Toko H287BSJS-3108HWD
DL: Matsushita ELB-5F020N
'<How to set to NTSC/PAL modes>
To set to NTSC/PAL modes, connect CXA 1145P's pin 7 to 9 either Vee (supply pin) or GND. Con-
nection to Vee produces NTSC mode, and to GND PAL mode. This is executed by connecting the
jumper line of the desired mode on the evaluation board.
-118-

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