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PDF CXA2134Q Data sheet ( Hoja de datos )
| Número de pieza | CXA2134Q | |
| Descripción | US Audio Multiplexing Decoder | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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US Audio Multiplexing Decoder
CXA2134Q
Description
The CXA2134Q 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 this IC.
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
— Quasi-surround
— Bass control
— Treble control
— Volume control
are all included in a single chip. Almost any soft 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–
E99832-PS
1 page  
CXA2134Q
Pin No.
Symbol
Pin
voltage
6 SCL
—
Equivalent circuit
10.5k
×4
VCC
7.5k
↓ 35µ
2.1V
4k
3k
6
Description
Serial clock input pin.
VIH > 3.0V
VIL < 1.5V
7 DGND
—
8 MAININ 4.0V
9 MAINOUT 4.0V
7
VCC
10k
VCC
147
8
53k
4V
VCC
×4
15k
147
9
↓
200µ
1k
Digital block GND.
Input pin of (L + R) signal
from MAINOUT (Pin 9).
(L + R) signal output pin.
–5–
5 Page 
Pin No.
Symbol
Pin
voltage
38 TVOUT-R 4.0V
39 TVOUT-L 4.0V
Equivalent circuit
VCC
3k
147 580
38
39 580
CXA2134Q
Description
TVOUT right channel output
pin.
TVOUT left channel output
pin.
40 SURRTC 4.0V
40
20k
VCC
10k
20k
24k
580 40k
580
Set the center frequency of
the Surround circuit phase
shifter.
The frequency is determined
by the built-in resistor and
the external capacitor.
(Connect a 0.022µF
capacitor between this pin
and GND.)
41 TRE-R 4.0V
47 TRE-L 4.0V
1.2k 1.2k
Vcc
5.7k 5.7k
6k 147
41
47
Treble filter pin.
(Right channel)
Treble filter pin.
(Left channel)
43 VOLIN-R 4.0V
48 VOLIN-L 4.0V
16
20
35 NC
42
46
—
10k
147
66k
4V
VCC
43
48
Volume right channel input
pin.
Volume left channel input pin.
– 11 –
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CXA2134Q.PDF ] | |
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