SC7315S Datasheet PDF - Silan Microelectronics

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SC7315S
Silan Microelectronics

Part Number SC7315S
Description 2CH OUTPUT STEREO AUDIO PROCESSOR
Page 13 Pages


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SC7315
2-CH OUTPUT STEREO AUDIO PROCESSOR
DESCRIPTION
The SC7315 is a volume, tone (bass and treble), balance (left/ right)
and fader 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.
DIP-20-300-2.54
FEATURES
SOP-20-375-1.27
* 2 stereo inputs
* Two speaker attenuators:
--2 independent speakers control in 1.25dB steps for balance and fader
facilities
--Independent mute function
* All functions programmable via serial I2C Bus
* Loudness function
ORDERING INFORMATION
Device
SC7315
SC7315S
Package
DIP-20-300-2.54
SOP-20-375-1.27
* Volume control in 1.25dB steps
* Treble and bass control
* Input and output for external equalizer ornoise reduction system
BLOCK DIAGRAM
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HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03
Page 1 of 13



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SC7315
ABSOLUTE MAXIMUM RATING
Characteristics
Supply Voltage
Operating Temperature
Storage Temperature
Symbol
VS
Tamb
Tstg
Ratings
10.2
-40 ~ +85
-55 ~ +150
Unit
V
°C
°C
QUICK REFERENCE DATA
Characteristics
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.
10
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
Characteristics
SUPPLY VOLTAGE
RG=600
Symbol
all controls flat(G=0), f=1kHz,Unless otherwise specified)
Test conditions
Min. Typ. Max.
Unit
Operating Supply Voltage
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Operating Supply Current
Ripple Rejection of Supply Voltage
VOLUME CONTROL
VS
IS
SVR
6 9 10.0 V
20.0 35.0 mA
60 80
dB
Input Resistance
Control Range
Minimum Attenuation
Maximum Attenuation
Step Resolution
Attenuation Set Error
Tracking Error
DC Steps
SPEAKER ATTENUATORS
RIV
Crange
AV(min)
AV(max)
ASTEP
EA
ET
AV=0 to –20dB
AV=-20 to –60dB
Adjacent attenuation steps
VDC
From 0dB to AV max
20
70
-1
70
0.5
-1.25
-3
33
75
0
75
1.25
0
0
0.5
50
80
1
80
1.75
1.25
2
2
3
7.5
k
dB
dB
dB
dB
dB
dB
mV
mV
Control Range
Crange
35 37.5 40 dB
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03
Page 2 of 13



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SC7315
(Continued)
Characteristics
Symbol
Test conditions
Step Resolution
SSTEP
Attenuation Set Error
EA
Output Mute Attenuation
AMUTE
DC Steps
BASS CONTROL (note 1)
Adjacent attenuation steps
VDC
From 0dB to MUTE
Control Range
GB Maximum boost/cut
Step Resolution
BSTEP
Internal Feedback Resistance
TREBLE CONTROL (note 1)
RB
Control Range
Gt Maximum boost/cut
Step Resolution
AUDIO OUTPUTS
TSTEP
Clipping Level
VOCL THD=0.3%
Output Load Resistance
RL
Output Load Capacitance
CL
Output Resistance
ROUT
DC Voltage Level
GENERAL
VOUT
BW=20 ~20kHz,flat output muted
Output Noise
eNO BW=20 ~20kHz,flat All gains=0dB
A curve, all gains =0 dB
Signal to Noise Ratio
S/N All gains=0dB; Vo=1Vrms
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Distortion
Av=0,VIN=10mV
d Av=-20dB, VIN=1Vrms
Av=-20dB,VIN=0.3Vrms
Channel Separation Left/Right
Sc
Total Tracking Error
BUS INPUTS
AV=0 to –20 dB
AV=-20 to –60 dB
Input Low Voltage
VIL
Input High Voltage
VIH
Input Current
IIN
Output Voltage SDA Acknowledge Vo Io=1.6mA
Min.
0.5
80
±12
1
34
±13
1
2
4
30
4.2
80
3
-5
Typ.
1.25
100
0
1
±14
2
44
±14
2
2.5
75
4.5
2.5
5
3
106
0.01
0.09
0.04
103
0
0
Max.
1.75
1.5
3
10
Unit
dB
dB
dB
mV
mV
±16 dB
3 dB
58 k
±15 dB
3 dB
Vrms
k
10 nF
120
4.8 V
µV
15 µV
µV
dB
0.1 %
0.3 %
%
dB
1 dB
2 dB
1V
V
+5 µA
0.4 V
NOTES:
(1) Bass and treble response see Figure 16. The center frequency and quality of the response behavior can be
chosen by the external circuitry. A standard first order bass response can realized by a standard feedback
network.
(2) The input is grounded through the 2.2µF capacitor.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03
Page 3 of 13



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PIN CONFIGURATIONS
CREF 1
VDD 2
GND 3
L4
TREBLE
R5
IN(R) 6
LOUD R 7
NC 8
LOUD L 9
NC 10
20 SCL
19 SDA
18 DGND
BUS
INPUTS
17 OUT L
16 OUT R
15 BOUT(R)
14 BIN(R)
13 BOUT(L)
BASS
12 BIN(L)
11 IN(L)
SC7315
www.DataSheet4U.com
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03
Page 4 of 13



SC7315S datasheet pdf
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