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CXA2094Q Datasheet

  • CXA2094Q

  • US Audio Multiplexing Decoder

  • 31頁

  • SONY   SONY

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CXA2094Q
US Audio Multiplexing Decoder
Description
The CXA2094Q is an IC designed as a decoder for
the Zenith TV Multi-channel System and also
corresponds with I
2
C BUS. Functions include stereo
demodulation, SAP (Separate Audio Program)
demodulation, dbx noise reduction. Various kinds of
filters are built in while adjustment and mode control
are all executed through I
2
C BUS.
Features
鈥?/div>
Adjustment free of VCO and filter.
鈥?/div>
Audio multiplexing decoder and dbx noise
reduction decoder are all included in a single chip.
Almost any sort of signal processing is possible
through this IC.
鈥?/div>
All adjustments are possible through I
2
C BUS to
allow for automatic adjustment.
鈥?/div>
Various built-in filter circuits greatly reduce external
parts.
鈥?/div>
There are two systems for external inputs.
鈥?/div>
There is an additional SAP output.
Standard I/O Level
鈥?/div>
Input level
COMPIN (Pin 12)
48 pin QFP (Plastic)
Absolute Maximum Ratings
(Ta = 25擄C)
鈥?/div>
Supply voltage
V
CC
11
鈥?/div>
Operating temperature Topr 鈥?0 to +75
鈥?/div>
Storage temperature
Tstg 鈥?5 to +150
鈥?/div>
Allowable power dissipation
P
D
0.6
Range of Operating Supply Voltage
9 鹵 0.5
V
擄C
擄C
W
V
100mVrms
245mVrms (Selected by INSW)
AUX1-L/R (Pins 42 and 41)
490mVrms
AUX2-L/R (Pins 45 and 44)
490mVrms
鈥?/div>
Output level
TVOUT-L/R (Pins 47 and 46)
490mVrms
Pin Configuration
(Top View)
VEWGT
VETC
SAPIN
SAPOUT
VCATC
VCAIN
VEOUT
Applications
TV, VCR and other decoding systems for US audio
multiplexing TV broadcasting
Structure
Bipolar silicon monolithic IC
鈭?/div>
A license of the dbx-TV noise reduction system is
required for the use of this device.
NC
NC
NC
36 35 34 33 32 31 30 29 28 27 26 25
VCAWGT 37
SOUT 38
ESAPIN 39
TVOUT-S 40
AUX1-R 41
AUX1-L 42
NC 43
AUX2-R 44
AUX2-L 45
TVOUT-R 46
TVOUT-L 47
SDA 48
1
2
3
4
5
6
7
8
9 10 11 12
24 NOISETC
23 STIN
22 SUBOUT
21 NC
20 V
CC
19
NC
NC
VE
18 SAPTC
17 GND
16 NC
15
IREF
14 VGR
13 NC
PCINT1
PCINT2
MANIN
DGND
SCL
NC
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.
MAINOUT
COMPIN
NC
PLINT
NC
NC
鈥?鈥?/div>
E97725A86

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