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PDF CXA1871S Data sheet ( Hoja de datos )
| Número de pieza | CXA1871S | |
| Descripción | NTSC/PAL Y/C/Jungle | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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NTSC/PAL Y/C/Jungle
CXA1871S
Description
The CXA1871S is a bipolar IC which integrates the
NTSC and PAL color TV luminance signal
processing, chroma signal processing, sync signal
processing, and RGB signal processing onto a
single chip.
48 pin SDIP (Plastic)
Features
• I2C bus compatible. Various types of adjustments
and user controls performed with two bus lines
SCL and SDA.
• H and V oscillation frequencies made non-
adjusting with a countdown system.
• Non-adjusting Y system filters (chroma trap, delay
line)
• Built-in V picture distortion correction circuit
• Built-in delay line aperture compensation
• Auto cut-off function for automatic CRT cut-off
adjustment and compensation for changes with
time
• Multiple inputs
Composite Video 2 systems
(Built-in 2-input, 1-output video switch)
Y/C separation input: 1 system
On screen display input: 1 system
• Multiple system configuration possible using a non-
adjusting SECAM chroma decoder.
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
VCC 12
V
• Operating temperature
Topr –20 to +75 °C
• Storage temperature
Tstg –65 to +150 °C
• Allowable power dissipation PD
1.8 W
Operating Conditions
Supply voltage
VCC 9±0.5
V
Applications
Color TV
Structure
Bipolar silicon monolithic IC
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—
E95432-TE
1 page  
CXA1871S
Pin Pin
Symbol
No. voltage
8 V HOLD 0.7 V
Equivalent circuit
55 k
VCC
1k
150
8
50 k
Description
Peak hold pin for V sync separation.
Connect a capacitor.
9 SW OUT —
10 Y IN 3.5 V
VCC
9
VCC
500
VCC
30 k 12 k
2k
25 k
VCC
1.2 k
10
VCC
50 k
Video switch output pin.
Y signal input pin. Input via a
capacitor.
Standard input level: 2 Vp-p
VCC
VCC
VCC
11 A PED 3.5 V 11
16 k 20 k
1.2 k
20 k
VCC
Auto pedestal (black stretch) black
peak hold pin. Connect a capacitor.
—5—
5 Page 
CXA1871S
Pin Pin
Symbol
No. voltage
45 R-Y IN
5.2 V
46 B-Y IN
Equivalent circuit
VCC
45
46
VCC
1.2 k
BGP
50 k
100 µA
Description
Color difference signal input pins.
Input via capacitors.
Standard input level
B-Y: 1.33 Vp-p
R-Y: 1.05 Vp-p
47 B-Y OUT
5V
48 R-Y OUT
VCC VCC VCC
47 10 k
48
VCC
20 k Color difference signal output pins.
80 k Standard input level
B-Y: 0.665 Vp-p
R-Y: 0.525 Vp-p
—11—
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CXA1871S.PDF ] | |
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