Silan
Semiconductors
COMPANDER
DESCRIPTION
SA8507 is a automatic gain control system that is used for
dynamic range compression and expansion. According to the
companding the signal, this can reduce the noise components.
SA8507 includes compressor, expander, pre-amp, filter amp, limiter
and mute/bypath logic.
SA8507
DIP-20
FEATURES
* Wide supply voltage: 2.4V ~ 7V
* Easy gain control
* Mute/bypath logic
* Data in/out pin
SOP-20
ORDERING INFORMATION
SA8507D
SA8507S
DIP-20-300 Package
SOP-20-375 Package
PIN CONFIGURATION
FO
FI
CO
DI
AGIC
CRC
CPI-
CPI+
CB
1
2
3
20 Vcc
19 EO
18 ERC
SA8507
4
5
6
7
8
9
17 DO
16 EPI-
15 EPI+
14 EB
13 EMUTE
12 BYPATH
11 CMUTE
GND 10
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
2001-11-30
1
Silan
Semiconductors
BLOCK DIAGRAM
AGIC
5
CRC
6
Rectifier
Byath
Variable
Resistor
Compressor
Mute
CPI-
CPI+
7
8
Summing
AMP
Byath
EPI- 16
EPI+ 15
+
-
Variable
Resistor
Summing
AMP
Expandor
Mute
19
EO
DI
4
CO
3
Compressor
Output Buffer
FI
2
+
-
SA8507
1
FO
+
-
Limiter
11 CMUTE
Logic
12 BYPATH
13 EMUTE
Rectifier
Bias Circuit
9
14
10
20 Vcc
17
DO
18
ERC
CB EB GND
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C )
Characteristic
Supply Voltage
Power Dissipation
Operating Temperature
Storage Temperature
SA8507D
SA8507S
Symbol
V
CC
PD
T
OPR
T
STG
Value
10
1000
410
-22 ~ +70
-55 ~ +150
Unit
V
mW
mW
°C
°C
ELECTRICAL CHARACTERISTICS
(Ta=25°C)
Characteristic
Operating Voltage
Operating Current
Symbol
V
CC
I
CC
V
O(COMP)
--
Test Condition
Min
--
--
240
-0.5
-1.0
-1.5
--
--
60
1.15
Typ.
2.4
4.0
300
0
0
0
0.5
3.0
80
1.35
Max
7.0
6.5
360
+0.5
+1.0
+1.5
1.0
5.5
--
1.50
Unit
V
mA
mVrms
dB
dB
%
mVrns
dB
Vrms
DC ELECTRICAL CHARACTERISTICS
No Signal
Vin=12.5mV
COMPRESSOR PART
Standard Output Voltage
Gain Deference
Bypath Gain Difference
Output Distortion
Noise Output Voltage
Mute Attenuation Radio
Maximum Voltage
∆G
V1(COMP)
Vin=-20dB(300mV=0dB)
∆G
V2(COMP)
Vin=-40dB
∆G
VB(COMP)
Vout=0dB, BYPATH=GND
THD
COMP
Vin=0dB
V
NO(COMP)
Rg=620hm
ATT
MUTE
V
out
Vin=0dB, CMUTE=GND
--
(To be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
2001-11-30
2
Silan
Semiconductors
(Continued)
SA8507
Test Condition
Vin=30mVrms=0dB
Vin=-10dB
Vin=-20dB
Vin=-30dB
Vin=0dB, BYPATH=GND
Vin=0dB
Rg=620hm
Vin=0dB, EMUTE=GND
THD=10%
Characteristic
EXPANDER PART
Standard Output Level (0dB)
Gain Difference
Bypath Gain Difference
Output Distortion
Noise Output Voltage
Mute Attenuation Ratio
Max. Output Voltage
Symbol
V
O(EXP)
∆G
V1(EXP)
∆G
V2(EXP)
∆G
V3(EXP)
∆G
VB(EXP)
THD
EXP
V
NO(EXP)
ATT
MUTE
V
OEXP(MAX)
Min
110
-0.5
-1.0
-1.5
-2.5
--
--
60
700
Typ.
130
0
0
0
0
0.5
10.0
80
800
Max
160
+0.5
+1.0
+2.0
+0.5
1.5
30.0
--
--
Unit
mVrms
dB
dB
%
µVrms
dB
mVrms
PIN DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
9
10
Symbol
FO
FI
CO
DI
AGIC
CRC
CPI-
CPI+
CB
GND
Description
Filter Amp Output
Filter Amp Input
Compressor Output
Data Input
AC Gain Infinity Capacitor
Compressor Rectifier Capacitor
Compressor Inverting Input
Compressor Non-inverting Input
Compressor Reference Bias
Ground
Pin No.
11
12
13
14
15
16
17
18
19
20
Symbol
CMUTE
BYPATH
EMUTE
EB
EPI+
EPI-
DO
ERC
EO
Vcc
Description
Compressor Mute
No Companding
Expander Mute
Expander Reference Bias
Expander Non-inverting Input
Expander Inverting Input
Data Output
Expander Rectifier Capacitor
Expander Output
Supply Voltage
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
2001-11-30
3
Silan
Semiconductors
TEST CIRCUIT
COMP OUT
10k
100k
1F
SA8507
1
2
FO
FI
CO
DI
AGIC
CRC
CPI-
CPI+
CB
Vcc 20
EO 19
ERC 18
DO 17
2.2uF
Vcc
10uF
EXP OUT
1.0uF
1F
3
4
22uF
2.2uF
0.47uF
9.1k
474
COMP
IN
4.7uF
620
5
6
7
8
9
SA8507B
51k
50pF
100k
620
1.0F
EXP IN
EPI- 16
EPI+ 15
EB 14
EMUTE 13
474
100k
SW3
SW2
SW1
BYPATH 12
CMUTE 11
10 GND
APPLICATION CIRCUIT
Data
Output
Speaker
0.47F
Expander
Input
Expander
Mute
Compressor
Mute
473
2.2F
47F
Vcc
473
10k
33k
47k
20
19
18
17
-
+
-
+
16
104
390k
15
10F
14
REG
13
12
LOGIC
11
Exp
-
+
1
101
104
33k
5.6k
TO TX
Modulation
-
+
REG
2
120k
3
39k
4
473 33k
22F
5
22F
6
8.2k 1F
7
223
8
2.2k
9
10
132
103
MC
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
2001-11-30
4
Silan
Semiconductors
PACKAGE OUTLINE
SA8507
UNIT: mm
2.54
DIP-20-300-2.54
6.40
1.50
22.95
7.62
15 degree
3.51
0.46
SOP-20-375-1.27
3.30
5.08
UNIT: mm
10.45
7.70
1.27
18.02
17.62
0.41
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
2001-11-30
5
1.95
9.53
0.25
嵌入式系统
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