SILAN SA8507S

Silan
Semiconductors SA8507
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
DIP-20
and mute/bypath logic.
FEATURES
* Wide supply voltage: 2.4V ~ 7V
* Easy gain control
SOP-20
* Mute/bypath logic
* Data in/out pin
ORDERING INFORMATION
SA8507D
DIP-20-300 Package
SA8507S
SOP-20-375 Package
PIN CONFIGURATION
1
20 Vcc
FI
2
19 EO
CO
3
18 ERC
DI
4
17 DO
AGIC
5
CRC
6
CPI-
7
14 EB
CPI+
8
13 EMUTE
CB
9
12 BYPATH
SA8507
FO
GND 10
16 EPI15 EPI+
11 CMUTE
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
1
2001-11-30
Silan
Semiconductors SA8507
BLOCK DIAGRAM
AGIC
CRC
DI
CO
FI
5
6
4
3
2
Rectifier
Compressor
Output Buffer
Byath
+
-
1
FO
Variable
Resistor
Compressor
Mute
CPICPI+
7
8
Summing
AMP
+
-
Limiter
11 CMUTE
Byath
EPI- 16
Logic
+
-
EPI+ 15
Variable
Resistor
Summing
AMP
Rectifier
Expandor
Mute
17
18
19
DO
ERC
EO
12 BYPATH
13 EMUTE
Bias Circuit
9
14
20 Vcc
10
CB EB GND
ABSOLUTE MAXIMUM RATINGS(Ta=25°C )
Characteristic
Supply Voltage
Power Dissipation
SA8507D
SA8507S
Symbol
Value
Unit
VCC
10
V
PD
1000
mW
410
mW
Operating Temperature
TOPR
-22 ~ +70
°C
Storage Temperature
TSTG
-55 ~ +150
°C
ELECTRICAL CHARACTERISTICS (Ta=25°C)
Characteristic
Symbol
Test Condition
Min
Typ.
Max
Unit
DC ELECTRICAL CHARACTERISTICS
Operating Voltage
VCC
--
--
2.4
7.0
V
Operating Current
ICC
No Signal
--
4.0
6.5
mA
240
300
360
mVrms
COMPRESSOR PART
Standard Output Voltage
Gain Deference
Bypath Gain Difference
VO(COMP)
Vin=12.5mV
∆GV1(COMP) Vin=-20dB(300mV=0dB)
-0.5
0
+0.5
∆GV2(COMP) Vin=-40dB
-1.0
0
+1.0
∆GVB(COMP) Vout=0dB, BYPATH=GND
dB
-1.5
0
+1.5
Output Distortion
THDCOMP Vin=0dB
--
0.5
1.0
%
Noise Output Voltage
VNO(COMP) Rg=620hm
--
3.0
5.5
mVrns
Mute Attenuation Radio
ATTMUTE
60
80
--
dB
1.15
1.35
1.50
Vrms
Maximum Voltage
Vout
Vin=0dB, CMUTE=GND
--
dB
(To be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
2
2001-11-30
Silan
Semiconductors SA8507
(Continued)
Characteristic
Symbol
Test Condition
Min
Typ.
Max
Unit
mVrms
EXPANDER PART
Standard Output Level (0dB)
VO(EXP)
Vin=30mVrms=0dB
110
130
160
∆GV1(EXP)
Vin=-10dB
-0.5
0
+0.5
Gain Difference
∆GV2(EXP)
Vin=-20dB
-1.0
0
+1.0
∆GV3(EXP)
Vin=-30dB
-1.5
0
+2.0
Bypath Gain Difference
∆GVB(EXP)
Vin=0dB, BYPATH=GND
-2.5
0
+0.5
Output Distortion
THDEXP
Vin=0dB
--
0.5
1.5
%
Noise Output Voltage
VNO(EXP)
Rg=620hm
--
10.0
30.0
µVrms
Mute Attenuation Ratio
ATTMUTE
Vin=0dB, EMUTE=GND
60
80
--
dB
VOEXP(MAX)
THD=10%
700
800
--
mVrms
Description
Pin No.
Symbol
Filter Amp Output
11
CMUTE
Max. Output Voltage
dB
dB
PIN DESCRIPTION
Pin No.
Symbol
1
FO
Description
Compressor Mute
2
FI
Filter Amp Input
12
BYPATH
No Companding
3
CO
Compressor Output
13
EMUTE
Expander Mute
4
DI
Data Input
14
EB
5
AGIC
AC Gain Infinity Capacitor
15
EPI+
Expander Non-inverting Input
6
CRC
Compressor Rectifier Capacitor
16
EPI-
Expander Inverting Input
7
CPI-
Compressor Inverting Input
17
DO
Data Output
8
CPI+
9
CB
10
GND
Expander Reference Bias
Compressor Non-inverting Input
18
ERC
Compressor Reference Bias
19
EO
Expander Output
Expander Rectifier Capacitor
Ground
20
Vcc
Supply Voltage
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
3
2001-11-30
Silan
Semiconductors SA8507
TEST CIRCUIT
COMP OUT
1­F
10k
100k
1
FO
Vcc 20
2
FI
EO 19
Vcc
10uF
EXP OUT
1­F
2.2uF
0.47uF
4
DI
5
AGIC
2.2uF
ERC 18
DO 17
51k
50pF
EPI- 16
6
CRC
7
CPI-
EB 14
8
CPI+
EMUTE 13
9
CB
100k
474
EPI+ 15
474
620
4.7uF
EXP IN
SW3
BYPATH 12
10 GND
1.0­F
620
100k
9.1k
COMP
IN
CO
SA8507B
22uF
3
1.0uF
SW2
CMUTE 11
SW1
APPLICATION CIRCUIT
13
6
7
8
223
5
11
REG
103
4
12
LOGIC
+
473 33k
39k
101
120k
5.6k
TO TX
Modulation
3
14
REG
+
2
132
33k
15
+
+
1
47k
16
9
10
2.2k
17
Exp
104
Compressor
Mute
10­F
33k
18
8.2k 1­F
19
Expander
Mute
10k
22­F
20
104
473
2.2­F
473
47­F
Vcc
390k
22­F
Speaker
Expander
Input
0.47­F
Data
Output
MC
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
4
2001-11-30
Silan
Semiconductors SA8507
PACKAGE OUTLINE
DIP-20-300-2.54
UNIT: mm
6.40
7.62
0.25
2.54
1.50
15 degree
3.30
5.08
3.51
22.95
0.46
1.27
9.53
7.70
UNIT: mm
10.45
SOP-20-375-1.27
0.41
18.02
1.95
17.62
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.1
5
2001-11-30