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Номер произв SC7313S
Описание 4-CH OUTPUT STEREO AUDIO PROCESSOR
Производители Silan Microelectronics
логотип Silan Microelectronics логотип 



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SC7313S Даташит, Описание, Даташиты
SC7313
4-CH OUTPUT STEREO AUDIO PROCESSOR WITH 3 STEREO INPUTS AND
TONE/VOLUME CONTROL
DESCRIPTION
The SC7313 is a volume, tone (bass and treble), balance (left/right) and
fader (front/rear) processor for quality audio applications in car radio and
Hi-Fi systems. Selectable input gain and external loudness function are
provided. Control is accomplished by serial I2C bus microprocessor
interface. The AC signal settings is obtained by resistor networks and
switches combined with operational amplifiers. Due to the used CMOS
technology, low distortion, low noise and low DC stepping are obtained.
FEATURES
* Input multiplexer:
--3 stereo inputs
--Selectable input gain
* Four speaker attenuators:
--4 independent speakers control in 1.25dB steps for balance and
fader facilities
--Independent mute function
* All functions programmable via serial I2C Bus
* Loudness function
* Volume control in 1.25dB steps
* Treble and bass control
* Input and output for external equalizer or noise reduction system
ORDERING INFORMATION
Device
SC7313
SC7313S
Package
DIP-28-600-2.54
SOP-28-375-1.27
BLOCK DIAGRAM
7 17
L1
15
L2
14
L3
13
R3
9
R2
10
R1
11
Input
Selection
&
Gain
Control
CREF
1 Reference
16 12 19 18 4 25 23
Volume &
Loudness
Bass
Treble
Speaker/
ATT
Serial Bus Decoder + Latches
SCL 28
SDA
27
DGND 26
Volume &
Loudness
Bass
Treble
Spaker/
ATT
2
3
68
21 20
5
22 24
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2007.03.09
Page 1 of 14









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SC7313S Даташит, Описание, Даташиты
SC7313
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage
Operating Temperature
Storage Temperature
Symbol
VS
Tamb
Tstg
Rating
13
-40 ~ +85
-55 ~ +150
Unit
V
°C
°C
QUICK REFERENCE DATA
Parameter
Supply Voltage
Maximum Input Signal Handling
Total Harmonic Distortion ,V=1Vrms,
f=1kHz
Signal to Noise Ratio
Channel Separation, f=1kHz
Volume Control, 1.25dB Step
Bass and Treble Control, 2dB step
Fader and Balance Control, 1.25dB
Step
Input Gain, 3.75dB Step
Mute Attenuation
Symbol
VS
VCL
THD
S/N
SC
Min.
6
2
-78.75
-14
-38.75
0
Typ.
9
0.01
106
103
100
Max.
12
0.1
0
+14
0
11.25
Unit
V
Vrms
%
dB
dB
dB
dB
dB
dB
dB
ELECTRICAL CHARACTERISTICS (Refer to the test circuit)
(Tamb=25°C, VS=9.0V,RL=10k, RG=600, all controls flat(G=0), f=1kHz,Unless otherwise specified)
Parameter
Symbol
Test conditions
Min. Typ. Max.
SUPPLY VOLTAGE
Unit
Operating Supply Voltage
VS
6 9 12 V
Operating Supply Current
IS
28 35 mA
Ripple Rejection of Supply Voltage
INPUTS SELECTORS
SVR
60 80
dB
Input Resistance
RII Input 1,2,3
35 50 70 k
Clipping Level
VCL
2 2.5
Vrms
Input Separation (note 2)
SIN
80 100
dB
Output Load Resistance
RL Pin7,17
4 k
Minimum Input Gain
GIN(MIN)
-1 0 1 dB
Maximum Input gain
GIN(MAX)
11.25
dB
Step Resolution
GSTEP
3.75 dB
Input Noise
eIN G=11.25dB
2 µV
DC Steps
Adjacent gain steps
VDC
G=18.75 to MUTE
4 20 mV
4 mV
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2007.03.09
Page 2 of 14









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SC7313S Даташит, Описание, Даташиты
SC7313
(Continued)
Parameter
VOLUME CONTROL
Input Resistance
Control Range
Minimum Attenuation
Maximum Attenuation
Step Resolution
Attenuation Set Error
Tracking Error
DC Steps
SPEAKER ATTENUATORS
Control Range
Step Resolution
Attenuation Set Error
Output Mute Attenuation
DC Steps
BASS CONTROL (note 1)
Control Range
Step Resolution
Internal Feedback Resistance
TREBLE CONTROL (note 1)
Control Range
Step Resolution
AUDIO OUTPUTS
Clipping Level
Output Load Resistance
Output Load Capacitance
Output Resistance
DC Voltage Level
GENERAL
Output Noise
Signal to Noise Ratio
Symbol
Test conditions
Min. Typ. Max. Unit
RIV
Crange
AV(min)
AV(max)
ASTEP
AV=0 to –20dB
EA
AV=-20 to –60dB
ET
Adjacent attenuation steps
VDC
From 0dB to AV max
20 33 50
70 75 80
-1 0 1
70 75 80
0.5 1.25 1.75
-1.25 0 1.25
-3 2
2
03
0.5 7.5
k
dB
dB
dB
dB
dB
dB
mV
mV
Crange
SSTEP
EA
AMUTE
Adjacent attenuation steps
VDC
From 0dB to MUTE
35 37.5 40 dB
0.5 1.25 1.75 dB
1.5 dB
80 100
dB
0 3 mV
1 10 mV
GB Maximum boost/cut
BSTEP
RB
±12 ±14 ±16 dB
1 2 3 dB
34 44 58 k
Gt Maximum boost/cut
TSTEP
±13 ±14 ±15
123
dB
dB
VOCL
RL
CL
ROUT
VOUT
THD=0.3%
2 2.5
Vrms
4 k
10 nF
30 75 120
4.2 4.5 4.8 V
BW=20 ~20kHz,flat
output muted
eNO BW=20 ~20kHz,flat
All gains=0dB
A curve, all gains =0 dB
S/N All gains=0dB; Vo=1Vrms
3 µV
5 15 µV
4 µV
106 dB
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2007.03.09
Page 3 of 14










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