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PDF CXA2040 Data sheet ( Hoja de datos )
| Número de pieza | CXA2040 | |
| Descripción | I2C Bus-Compatible Video Switch | |
| Fabricantes | Sony Corporation | |
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CXA2040AQ
I2C Bus-Compatible Video Switch
Description
The CXA2040AQ is an I2C bus-compatible 5-input,
3-output video switch for TVs.
Features
• Serial data control via I2C bus
• 5 composite video input systems
• 2 Y/C (S terminal) input systems
• 3 composite video output systems
• 1 Y/C (S terminal) output system
• Input can be selected independently for each
output system.
• SYNC_ID function for CV1 system input
• Built-in 6dB amplifier for CVOUT2 system output
• Built-in Y/C MIX circuit
• Slave address can be changed (90H/92H).
• High impedance maintained by I2C bus line (SDA,
SCL) even when power is OFF.
Applications
TVs
Pin Configuration (Top View)
32 pin QFP (Plastic)
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
1.0 W
(when mounted on a 50mm × 50mm board)
Operating Conditions
Supply voltage
VCC 9.0 ± 0.5 V
Structure
Bipolar silicon monolithic IC
24 23 22 21 20 19 18 17
CV2 25
VCC 26
CV3 27
GND 28
CV4 29
GND 30
CV5 31
BIAS 32
1 234567 8
16 NC
15 CVOUT2
14 NC
13 CVOUT3
12 NC
11 YOUT
10 NC
9 COUT
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–
E96Z28-PS
1 page  
CXA2040AQ
Pin
No.
Symbol Pin voltage
Equivalent circuit
23 CV1
3.1V
4k
147
23
VCC
Description
Composite video signal input.
Clamped to approximately 3.1V.
Input the input signal through
capacitor. Connect protective
resistor of 220Ω between this pin
and the capacitor.
The composite video signal input
to CV1 is also taken into the
"SYNC DETECT circuit" of which
SYNC is existed or not.
25 CV2
27 CV3
29 CV4
31 CV5
4.5V
25 20k
27 147
29
31 28k
VCC
Composite video signal input.
Biased to approximately 4.5V.
Input the input signals through
capacitors. Connect protective
resistor of 220Ω between these
pins and the capacitors.
26 VCC
2
28 GND
30
9.0V∗1
0.0V∗1
32 BIAS
4.5V
8
10
12
14 NC
16
18
24
1.2k
VCC
22.5k
32
20k
–5–
Power supply.
Apply 9.0V.
GND.
4.5V bias.
Attach a decoupling capacitor
between this pin and GND.
This pin cannot be used as an
external power supply.
NC (not connected).
Connect to GND.
If these NC pins are not connected
to GND, the cross talk and other
desired values indicated in the
Electrical Characteristics cannot
be obtained.
∗1 Applied externally.
5 Page 
CXA2040AQ
– 11 –
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet CXA2040.PDF ] | |
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