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SC7312S Schematic ( PDF Datasheet ) - Silan Microelectronics

Teilenummer SC7312S
Beschreibung 4CH OUTPUT STEREO AUDIO PROCESSOR
Hersteller Silan Microelectronics
Logo Silan Microelectronics Logo 




Gesamt 12 Seiten
SC7312S Datasheet, Funktion
SC7312
4-CH OUTPUT STEREO AUDIO PROCESSOR WITH 4 STEREO INPUTS AND
TONE/VOLUME CONTROL
DESCRIPTION
The SC7312 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.
SOP-32-375-1.27
FEATURES
* Input multiplexer:
--4 stereo inputs
--Selectable input gain for optimal adaptation to different
sources
* 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
ORDERING INFORMATION
Device
SC7312S
Package
SOP-32-375-1.27
* Treble and bass control
* Input and output for external
equalizer or noise reduction system
BLOCK DIAGRAM
www.DataSheet4U.com
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2004.08.03
Page 1 of 13






SC7312S Datasheet, Funktion
SC7312
TYPICAL CHARACTERISTICS PERFORMANCE (continued)
Fig.10 Input Separation
( L1,L2,L3,L4) vs. Frequency
110
100
VIN=1Vrms
90 AV=0dB
All controls Flat
80
70
1
10
234
10 10 10
Frequency (Hz)
Fig.11 Supply Voltage Rejection
vs. Frequency
100
90
80
70
60
1
10
Vsvr=0.5Vrms
All Input to GND
AV=0dB
All controls Flat
234
10 10 10
Frequency (Hz)
Fig.13 Quiescent current vs. Supply
Voltage
8.0
6.0
4.0
2.0
4
6
8 10
12
Supply Voltage (V)
www.DataSheet4U.com
Fig.14 Supply current vs.
Temperature
9.0
8.5
8.0
Vs=9V
7.5
7.0
6.5
-60
-30 0
30 60
Temperature ( )
90
Fig.16 Typical Tone Response
(with the Ext components indicated
the test circuit)
15
AV=0dB
10
5
0
-5
-10
-15
1
10
234
10 10 10
Frequency (Hz)
Fig.12 Output Clipping Level vs.
Supply Voltage
5.0
RL=10k
f=1kHz
THD=0.3%
4.0
3.0
2.0
1.0
4
6 8 10 12
Supply Voltage (V)
Fig.15 Bass resistance vs.
Temperature
50
48
46
44
42
40
-60
-30 0 30 60
Temperature ( )
90
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2004.08.03
Page 6 of 13

6 Page









SC7312S pdf, datenblatt
PACKAGE OUTLINE
SOP-32-375-1.27
20.98±0.10
1.27 0.40
19.05
SC7312
UNIT: mm
2.54MAX
0.15±0.05
0.25±0.05
www.DataSheet4U.com
HANDLING MOS DEVICES:
Electrostatic charges can exist in many things. All of our MOS devices are internally protected against
electrostatic discharge but they can be damaged if the following precautions are not taken:
Persons at a work bench should be earthed via a wrist strap.
Equipment cases should be earthed.
All tools used during assembly, including soldering tools and solder baths, must be earthed.
MOS devices should be packed for dispatch in antistatic/conductive containers.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2004.08.03
Page 12 of 13

12 Page





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