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CXA2020M Datasheet

  • CXA2020M

  • EIAJ Sound Multiplexing Decoder

  • 248.90KB

  • 18頁

  • SONY   SONY

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CXA2020M/S
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
identification
(stereo/bilingual discrimination display), mode
display, and muting.
Features
鈥?/div>
Adjustment free of filter.
鈥?/div>
High frequency stereo separation improved.
鈥?/div>
An internal active filter greatly reduces the external
parts.
鈥?/div>
Use of the countdown method for broadcast mode
identification eliminates the necessity of adjusting
the identification system (Cue oscillator).
鈥?/div>
Output level: 520mVrms (1kHz, monaural, 100%).
鈥?/div>
Internal filter eliminates interference from digital
facsimile signals.
鈥?/div>
The discrimination time needed to shift from
multiplexing sound to monaural sound is reduced.
鈥?/div>
Forced monaural mode can be set to operate only
for stereo broadcasts or for stereo/bilingual
broadcasts.
Applications
鈥?/div>
Color TVs
鈥?/div>
Hi-Fi VCRs
Structure
Bipolar silicon monolithic IC
Pin Configuration
GND 1
NC 2
REFL 3
Vcc 4
NC 5
CXA2020M
28 pin SOP (Plastic)
CXA2020S
22 pin SDIP (Plastic)
Absolute Maximum Ratings
(Ta = 25擄C)
[ ( ) is the pin No. for the CXA2020S.]
鈥?/div>
Supply voltage
V
CC
10
鈥?/div>
Input signal (Pin 6)
Vis
0.6
鈥?/div>
Control voltage
(Pins 5, 12, 13, 14)
Vic
V
CC
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
(A2020M) 1000
(A2020S) 900
鈥?/div>
LED drive current
I
LED
10
Operating Supply Voltage Range
8.5 to 9.5
V
Vp-p
V
擄C
擄C
mW
mW
mA
V
CXA2020M
28 SUBI
27 NC
26 SC OUT
25 SC IN
24 NC
GND 1
NC 2
REFL 3
Vcc 4
CXA2020S
22 SUBI
21 SC OUT
20 SC IN
19 MC OUT
CXA2020M
MPX IN 7
NC 8
CUBI
9
22 MC IN
21 L OUT
20 R OUT
19 M OUT
18 FOMO
17 MUTE
16 MODE
15 NC
MPX IN 6
NC
CUBI
7
8
CXA2020S
MO MODE 6
23 MC OUT
MO MODE 5
18 MC IN
17 L OUT
16 R OUT
15 M OUT
14 FOMO
13 MUTE
12 MODE
NC 10
LEDST 11
LEDSU 12
LEDM 13
NC 14
LEDST 9
LEDSU 10
LEDM 11
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.
鈥?鈥?/div>
E94Y28-ST

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