SA8507D Datasheet PDF - Silan Microelectronics

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SA8507D
Silan Microelectronics

Part Number SA8507D
Description VOICE SIGNAL COMPRESSION AND EXPANSION CIRCUIT
Page 6 Pages


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SA8507
VOICE SIGNAL COMPRESSION AND EXPANSION CIRCUIT WITH AUTO GAIN
CONTORL
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.
FEATURES
DIP-20-300-2.54
SOP-20-375-1.27 SSOP-20-300-0.65
* Wide supply voltage: 2.4V ~ 7V
* Easy gain control
* Mute/bypath logic
* Data in/out pin
ORDERING INFORMATION
Device
SA8507D
SA8507S
SA8507A
Package
DIP-20-300-2.54
SOP-20-375-1.27
SSOP-20-300-0.65
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS (Tamb=25°C )
Characteristic
Supply Voltage
SA8507D
Power Dissipation
SA8507S
SA8507A
Operating Temperature
Storage Temperature
Symbol
VCC
PD
TOPR
TSTG
Value
10
1000
410
350
-22 ~ +70
-55 ~ +150
Unit
V
mW
mW
mW
°C
°C
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2005.04.26
Page 1 of 6



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SA8507
ELECTRICAL CHARACTERISTICS (Tamb=25°C)
Characteristic
Symbol
DC ELECTRICAL CHARACTERISTICS
Test Condition
Operating Voltage
VCC --
Operating Current
COMPRESSOR PART
ICC No Signal
Standard Input Voltage (0dB)
VI(COMP) Vout=300mV(0dB)
Gain Deference
GV1(COMP) Vin=-20dB
GV2(COMP) Vin=-40dB
Bypath Gain Difference
GVB(COMP) Vout=0dB, BYPATH=GND
Output Distortion
THDCOMP Vin=0dB
Noise Output Voltage
VNO(COMP) Rg=620hm
Mute Attenuation Radio
ATTMUTE Vin=0dB, CMUTE=GND
Maximum Voltage
EXPANDER PART
Vout --
Standard Output Level (0dB)
VO(EXP) Vin=30mVrms=0dB
GV1(EXP) Vin=-10dB
Gain Difference
GV2(EXP) Vin=-20dB
GV3(EXP) Vin=-30dB
Bypath Gain Difference
GVB(EXP) Vin=0dB, BYPATH=GND
Output Distortion
THDEXP Vin=0dB
Noise Output Voltage
VNO(EXP) Rg=620hm
Mute Attenuation Ratio
ATTMUTE Vin=0dB, EMUTE=GND
Max. Output Voltage
VOEXP(MAX) THD=10%
Min
--
--
8.0
-0.5
-1.0
-1.5
--
--
60
1.15
110
-0.5
-1.0
-1.5
-2.5
--
--
60
700
Typ.
2.4
4.0
12.5
0
0
0
0.5
3.0
80
1.35
130
0
0
0
0
0.5
10.0
80
800
Max Unit
7.0 V
6.5 mA
17.0
+0.5
+1.0
+1.5
1.0
5.5
--
1.50
mVrms
dB
dB
%
mVrns
dB
Vrms
160
+0.5
+1.0
+2.0
+0.5
1.5
30.0
--
--
mVrms
dB
dB
%
µVrms
dB
mVrms
PIN CONFIGURATION
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2005.04.26
Page 2 of 6



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SA8507
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
Description
CMUTE Compressor Mute
BYPATH No Companding
EMUTE Expander Mute
EB Expander Reference Bias
EPI+ Expander Non-inverting Input
EPI- Expander Inverting Input
DO Data Output
ERC Expander Rectifier Capacitor
EO Expander Output
Vcc Supply Voltage
TEST CIRCUIT
COMP OUT
10k
100k
1F
1 FO
2
1F
3
FI
CO
4 DI
22uF
5 AGIC
2.2uF
6 CRC
0.47uF 9.1k
7 CPI-
COMP
IN
4.7uF
474
8 CPI+
620
9 CB
10 GND
Vcc 20
Vcc
10uF
EO 19
1.0uF
2.2uF
ERC 18
EXP OUT
DO 17
EPI- 16
EPI+ 15
EB 14
51k 50pF
474
100k
100k 1.0 F
620 EXP IN
EMUTE 13
BYPATH 12
CMUTE 11
SW3
SW2
SW1
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2005.04.26
Page 3 of 6



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SA8507
APPLICATION CIRCUIT
Data
Output
Expander
Input
Expander
Mute
Compressor
Mute
Speaker
Vcc
390k
10k
473
33k 47k
20 19 18 17 16 15 14 13 12 11
Exp
-
+
-
+
-
+
REG
-
+
LOGIC
REG
33k
TO TX
Modulation
1 2 3 4 5 6 7 8 9 10
104
5.6k
MC
PACKAGE OUTLINE
DIP-20-300-2.54
2.54
UNIT: mm
26.4±0.3
1.27
0.51MIN
0.51
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
15 degree
REV:1.2 2005.04.26
Page 4 of 6



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