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LA8630MC датащи(PDF) 5 Page - ON Semiconductor

номер детали LA8630MC
подробное описание детали  Low Voltage and Current Dissipation Compandor IC
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производитель  ONSEMI [ON Semiconductor]
домашняя страница  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LA8630MC датащи(HTML) 5 Page - ON Semiconductor

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LA8630MC
www.onsemi.com
5
Test Circuit
Summary of Compandor
(1) Operation
< for example >
VREF = 100mV
K = IO
VINC = 1mV
(-40dB)
VOUTC =
10
1
10
1
3
≈ 10mV = -20dB
VINE = 10mV
VOUTE = (1010
-3)2  10 = 1mV = -40dB
VOUTC =
K
/
C
VIN
VINE = VOUTC
VOUTE = KVINE
2 = K
K
C
VIN
= VINC
At reference level (VREF) VINC = VOUTC, VINE = VOUTE
VINC < VREF Compressor → Amplifier
VINE < VREF Expandor → Attenuator
VINC > VREF Compressor →Attenuator
VINE > VREF Expandor → Amplifier
34k
Ω
0.22
μF
16
SW14
RECTIFIER
VCA
15
14
13
12
11
10
9
2.2
μF
4.7
μF
VCC
10k
Ω
+
-
30k
Ω
30k
Ω
30k
Ω
50k
Ω
7.2k
Ω
1
2
3
4
5
6
7
8
REGULATOR
30k
Ω
34k
Ω
RECTIFIER
VCA
10k
Ω
SUM AMP
SUM AMP
50k
Ω
50k
Ω
50k
Ω
50k
Ω
GND
50k
Ω
3k
Ω
OP AMP
(WITH MUTE)
1
μF
2.2
μF
10
μF
1
μF
A-SW
OP AMP
TP16
SW13
0.1
μF
TP12
620
Ω
SW12
SW15
620
Ω
TP13
2.2
μF
200k
Ω
SW10
SW11
TP10
TP11
100
μF
TP1
620
Ω
SW1
SW2
2.2
μF
10k
Ω
SW3
200k
Ω
TP3
SW3
47k
Ω
SW3
SW3
1k
Ω
SW7
SW8
Compressor
Expandor
VINC
VINE
VOUTC
VOUTE
VINC
K
KVINE
2
Compressor
Expandor
1mV
(-40dB)
10mV
1mV
(-20dB)
(-20dB)
(-40dB)
10mV


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