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SC7312のメーカーはSilan Microelectronicsです、この部品の機能は「4CH OUTPUT STEREO AUDIO PROCESSOR」です。 |
部品番号 | SC7312 |
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部品説明 | 4CH OUTPUT STEREO AUDIO PROCESSOR | ||
メーカ | Silan Microelectronics | ||
ロゴ | |||
このページの下部にプレビューとSC7312ダウンロード(pdfファイル)リンクがあります。 Total 12 pages
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
1 Page SC7312
(Continued)
Characteristics
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
www.DataSheet4U.com
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 20 33 50
Crange
70 75 80
AV(min)
-1 0 1
AV(max)
70 75 80
ASTEP
0.5 1.25 1.75
AV=0 to –20dB
EA
AV=-20 to –60dB
-1.25 0 1.25
-3 2
ET 2
Adjacent attenuation steps
VDC
From 0dB to AV max
03
0.5 7.5
kΩ
dB
dB
dB
dB
dB
dB
mV
mV
Crange
SSTEP
EA
AMUTE
VDC
Adjacent attenuation steps
From 0dB to MUTE
35
0.5
80
37.5 40
1.25 1.75
1.5
100
03
1 10
dB
dB
dB
dB
mV
mV
GB
BSTEP
RB
Maximum boost/cut
±12 ±14 ±16 dB
1 2 3 dB
34 44 58 kΩ
Gt Maximum boost/cut
TSTEP
±13 ±14 ±15 dB
1 2 3 dB
VOCL
RL
CL
ROUT
VOUT
THD=0.3%
2 2.5
Vrms
4 kΩ
10 nF
30 75 120 Ω
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
2.5 µV
5 15 µV
3 µV
106 dB
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2004.08.03
Page 3 of 13
3Pages 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 | |||
ページ | 合計 : 12 ページ | ||
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PDF ダウンロード | [ SC7312 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
SC7312 | 4CH OUTPUT STEREO AUDIO PROCESSOR | Silan Microelectronics |
SC7312S | 4CH OUTPUT STEREO AUDIO PROCESSOR | Silan Microelectronics |
SC7313 | 4-CH OUTPUT STEREO AUDIO PROCESSOR | Silan Microelectronics |
SC7313S | 4-CH OUTPUT STEREO AUDIO PROCESSOR | Silan Microelectronics |