CXA2020S 查看數據表（PDF） - Sony Semiconductor
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CXA2020S Datasheet PDF : 18 Pages
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CXA2020M/S
Pin Description (Ta = 25°C, VCC = 9V)
PIn No.
Symbol
SOP SDIP
Pin
voltage
1 1 GND
0
2
5
8
10
14
2
7
NC
—
15
24
27
3 3 REFL
1.2V
The pin numbers in parentheses are for the CXA2020S.
Equivalent circuit
Description
GND.
Keep these pins open.
—
(They are not
connected to the chip.)
Vcc
147
3
3.3k
24k
20k
20k
GND
The noise elimination
filter connection of
internal reference
voltage.
4 4 VCC
—
6 5 MO MODE
—
7 6 MPXIN
4.1V
6
(5)
70k
10.5k
50k
GND
Vcc
147
7
(6)
25k
138k
30k
80µ 4.2V
GND
Power supply.
Forced monaural mode
selection.
When Low or open, the
forced monaural mode
operates for stereo
broadcasts only;
if High, the forced
monaural mode
operates for both
stereo and bilingual
broadcasts.
Sound multiplexing
signal input.
Typical input level
= 70mVrms
(monaural, 100%)
9 8 CUBI
4.1V
Vcc
1k
147 40k
9
(8)
40k 40k
Vcc
11k
2k
4.2V
Bias capacitor
connection of Cue
pulse generator.
–3–
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