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PDF CXA2194Q Data sheet ( Hoja de datos )
| Número de pieza | CXA2194Q | |
| Descripción | US Audio Multiplexing Decoder | |
| Fabricantes | Sony | |
| Logotipo |  |
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US Audio Multiplexing Decoder
CXA2194Q
Description
The CXA2194Q is an IC designed as a decoder
for the Zenith TV Multi-channel System and also
corresponds with I2C bus. Functions include stereo
demodulation, SAP (Separate Audio Program)
demodulation, dbx noise reduction and sound
processor. Various kinds of filters are built in while
adjustment, mode control and sound processor
control are all executed through I2C bus.
Features
• Alignment-free VCO and filter
• Audio multiplexing decoder
dbx noise reduction decoder
sound processor
— Two external inputs
— Pass switch
— Bass control
— Treble control
— Volume control
are all included in a single chip. Almost any sort
of signal processing is possible through this IC.
• Input level, separation adjustments and each
mode control are possible through I2C bus.
48 pin QFP (Plastic)
Applications
TV, VCR and other decoding systems for US audio
multiplexing TV broadcasting
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage VCC 11
• Operating temperature Topr –20 to +75
• Storage temperature Tstg –65 to +150
• Allowable power dissipation
PD 0.6
V
°C
°C
W
Range of Operating Supply Voltage
9 ± 0.5
V
∗ A license of the dbx-TV noise reduction system is required for the use of this device.
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–
E02826
1 page  
CXA2194Q
Pin
No.
Symbol
Pin
voltage
4 SDA
—
Equivalent circuit
×2
7.5k 4.5k
VCC
7.5k
35µ
4k
×5
3k
2.1V
Description
Serial data I/O pin.
VIH > 0V
VIL < 1.5V
4
5 SCL
VCC
7.5k
35µ
4k
—
10.5k
×4
2.1V Serial clock input pin.
VIH > 3.0V
VIL < 1.5V
3k
5
6 DGND
—
8 MAININ
4.0V
9 MAINOUT 4.0V
6
VCC
10k
VCC
8
VCC
147
48k
4V
VCC
×4
147
9
15k
1k
200µ
–5–
Digital block GND.
Input the (L + R) signal from
MAINOUT (Pin 9).
(L + R) signal output pin.
5 Page 
Pin
No.
Symbol
Pin
voltage
39 LPOUT-R 4.0V
40 LPOUT-L 4.0V
Equivalent circuit
VCC
3k
580
39
40 147 580
CXA2194Q
Description
LPOUT right channel output
pin.
LPOUT left channel output
pin.
41 LPIN-R
4.0V
42 LPIN-L
4.0V
7 NC
10 NC
20 NC
29 NC
34 NC
43 NC
—
—
—
—
—
—
10k
147
47k
4V
VCC
41
42
7
10
20
29
34
43
Right channel loop input pin.
Left channel loop input pin.
– 11 –
11 Page | ||
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| PDF Descargar | [ Datasheet CXA2194Q.PDF ] | |
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