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PDF CXA2202N Data sheet ( Hoja de datos )
| Número de pieza | CXA2202N | |
| Descripción | EIAJ Sound Multiplexing Decoder | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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EIAJ Sound Multiplexing Decoder
CXA2202N
Description
The CXA2202N, 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.
24 pin SSOP (Plastic)
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)
• Internal filter eliminates interference from digital
facsimile signals
• The discrimination time needed to shift from
multiplexing sound to monaural sound is reduced.
• Output level: 520mVrms (1kHz, monaural, 100%)
• 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
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
Vcc 10 V
• Input signal (Pin 7)
Vis
0.6 Vp-p
• Control voltage
(Pins 6, 13, 14, 15)
Vic
Vcc V
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation
PD 520 mW
• LED drive current ILED 10 mA
Operating Supply Voltage Range 8.5 to 9.5 V
Pin Configuration
GND 1
NC 2
REFL 3
Vcc 4
NC 5
MO MODE 6
MPX IN 7
NC 8
CUBI 9
LEDST 10
LEDSU 11
LEDM 12
24 SUBI
23 NC
22 SC OUT
21 SC IN
20 MC OUT
19 MC IN
18 L OUT
17 R OUT
16 M OUT
15 FOMO
14 MUTE
13 MODE
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–
E02964
1 page  
CXA2202N
Pin
No.
Symbol
Pin
voltage
17 R OUT
4.1V
18 L OUT
4.1V
19 MC IN
4.1V
20 MC OUT
3.4V
Equivalent circuit
Vcc 147
17.2k
17
32k
1.5m 32k
Vcc
GND
Vcc 147
17.2k
18
32k
1.5m 32k
Vcc
GND
Vcc Vcc
147
10k 10k
147
20
Vcc
147
19
20k
3p
14.4k 5.6k
4.2V 160µ
40µ 150µ
GND
Description
R-ch output.
L-ch output.
During "TEST", the
Cue signal component
passed through the
Cue BPF is output.
DC cut capacitor
connection of main
signal.
21 SC IN
22 SC OUT
24 SUBI
4.1V
3.9V
4.1V
Vcc
Vcc 10k 10k
147
22
8k
Vcc
40k
147
21
320µ
17k
4.2V
4.2V
DC cut capacitor
connection of sub
3p signal.
11.4k 5.6k
40µ 180µ
GND
Vcc
80µ 20µ
Vcc 16k
64k
16k 1k 8k 8k
24
147
4.2V
2.4V 3k
Bias capacitor
connection of sub FM
detector. "TEST" mode,
used for filter
adjustment, is
activated by grounding
this pin.
–5–
5 Page 
CXA2202N
SW Bias
No. Item Symbol condi- condi-
tions tions
Conditions
Measure-
ment
Min. Typ. Max. Unit
point
28
Mute volume
SUB
Ms
4
Input signal: SIG2
Calculate the level
difference between the
output amplitude of
Pins 17 and 18 (VMs)
4
and the measured
value (Vs2) in
Pins 17
and 18
70
80
measurement No. 3.
Ms = 20 log
Vs2
VMs
(dB)
(15kLPF, 1kBPF)
— dB
Input signals: SIG4, 5
Measure the level
difference between the
output signals of Pins
17 and 18 under bias
29
Mute volume
stereo
Mst
4
2
and
conditions 2 and 4.
Mst = Measured value
4 under bias
Pins 17
and 18∗2
70
80
—
dB
20
log
condition 2 (mVrms)
Measured value
under bias
condition 4 (mVrms)
(15kLPF, 1kBPF)
30
DC offset
stereo L-ch
Ostl 3
Input signal: SIG18
2 Measure the fluctuation
and in the output DC level Pin 18
4 of Pin 18 under bias
conditions 2 and 4.
— 20 100 mV
31
DC offset
stereo R-ch
Ostr 3
Input signal: SIG18
2 Measure the fluctuation
and in the output DC level Pin 17
4 of Pin 17 under bias
conditions 2 and 4.
— 20 100 mV
32
DC offset
MAIN OUT
Input signal: No signal
2 Measure the fluctuation
Om 3 and in the output DC level Pin 16
4 of Pin 16 under bias
conditions 2 and 4.
— 20 100 mV
33
Cue detection
sensitivity
CD
4
Input signal: SIG12
Change SIG12 and
2
measure amount of
attenuation at the point
"monaural" switches to
"Sound multiplex".
—
9 14 17 dB
∗2 Measure Pin 18 for SIG4 input; Pin 17 for SIG5 input.
– 11 –
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet CXA2202N.PDF ] | |
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