CXA2020S

Manufacturer Part NumberCXA2020S
DescriptionEIAJ Sound Multiplexing Decoder
ManufacturerSony
CXA2020S datasheet
 


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EIAJ Sound Multiplexing Decoder
Description
The CXA2020M/S, is a bipolar IC designed as
EIAJ TV sound multiplexing decoder, provides
various functions including sound multiplexing
demodulation,
broadcast
mode
(stereo/bilingual
discrimination
display, and muting.
Features
• Adjustment free of filter.
• High frequency stereo separation improved.
• An internal active filter greatly reduces the external
parts.
• Use of the countdown method for broadcast mode
identification eliminates the necessity of adjusting
the identification system (Cue oscillator).
• Output level: 520mVrms (1kHz, monaural, 100%).
• Internal filter eliminates interference from digital
facsimile signals.
• The discrimination time needed to shift from
multiplexing sound to monaural sound is reduced.
• Forced monaural mode can be set to operate only
for stereo broadcasts or for stereo/bilingual
broadcasts.
Applications
• Color TVs
• Hi-Fi VCRs
Structure
Bipolar silicon monolithic IC
Pin Configuration
CXA2020M
GND
1
NC
2
REFL
3
Vcc
4
NC
5
MO MODE
6
MPX IN
7
NC
8
CUBI
9
NC
10
11
LEDST
12
LEDSU
LEDM
13
NC
14
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.
CXA2020M/S
CXA2020M
28 pin SOP (Plastic)
identification
display),
mode
Absolute Maximum Ratings (Ta = 25°C)
[ ( ) is the pin No. for the CXA2020S.]
• Supply voltage
• Input signal (Pin 6)
• Control voltage
(Pins 5, 12, 13, 14)
• Operating temperature Topr
• Storage temperature
• Allowable power dissipation
• LED drive current
Operating Supply Voltage Range
28
SUBI
27
NC
26
SC OUT
25
SC IN
24
NC
23
MC OUT
MO MODE
22
MC IN
21
L OUT
R OUT
20
19
M OUT
18
FOMO
17
MUTE
16
MODE
NC
15
– 1 –
CXA2020S
22 pin SDIP (Plastic)
V
10
CC
Vis
0.6
Vic
V
–20 to +75
Tstg
–65 to +150
P
(A2020M) 1000
D
(A2020S) 900
I
LED
8.5 to 9.5
CXA2020S
22
GND
SUBI
1
21
NC
2
SC OUT
REFL
SC IN
20
3
Vcc
19
4
MC OUT
MC IN
18
5
6
17
MPX IN
L OUT
NC
R OUT
7
16
CUBI
M OUT
8
15
LEDST
9
FOMO
14
LEDSU
10
13
MUTE
11
LEDM
12
MODE
E94Y28A1Y-PS
V
Vp-p
V
CC
°C
°C
mW
mW
10
mA
V

CXA2020S Summary of contents