Multiplexing Decoder. CXA2194Q Datasheet

CXA2194Q Decoder. Datasheet pdf. Equivalent

Part CXA2194Q
Description US Audio Multiplexing Decoder
Feature US Audio Multiplexing Decoder CXA2194Q Description The CXA2194Q is an IC designed as a decoder for.
Manufacture Sony
Datasheet
Download CXA2194Q Datasheet



CXA2194Q
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



CXA2194Q
Block Diagram
11 12
13
21 9
8 36 35
LFLT
VCO
1/4
FLT
1/2
LPF VCA
MATRIX
COMPIN 14
VCC 19
GND 17
NOISETC 23
SAPTC 18
VCA
ATT
LPF
"STEREO"
STIND
DeEm
WIDEBAND
LPF NRSW/FOMO/SAPC
(+6dB)
LOGIC
BPF
IREF
15 16
SAPVCO
LPF
NOISE
DET
"NOISE"
DeEm
"SAP"
SAPIND
AMP
(+4dB)
I2C BUS I/F
"PONRES"
SW
6 54
24 25 22
LPF
VE VCA
HPF
RMSDET
SPECTRAL
LPF
RMSDET
26 27 28 30 31 33 32
TVSW
FEXT2
PASSSW
32
38 AUX2-L
37 AUX2-R
40 LPOUT-L
39 LPOUT-R
42 LPIN-L
41 LPIN-R
46 BASSL1
47 BASSL2
44 BASSR1
45 BASSR2
1 TREL
48 TRER





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