SC7314 Datasheet, PDF (1/13 Pages) Silan Microelectronics Joint-stock – 4CH OUTPUT STEREO AUDIO PROCESSOR WITH 4 STEREO INPUTS AND TONE/VOLUME CONTROL

SC7314
4-CH OUTPUT STEREO AUDIO PROCESSOR WITH 4 STEREO INPUTS AND
TONE/VOLUME CONTROL
DESCRIPTION
The SC7314 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:
--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
* Treble and bass control
* Input and output for external equalizer or noise reduction system
ORDERING INFORMATION
Device
Package
SC7314 DIP-28-600-2.54
SC7314S SOP-28-375-1.27
SC7314D SDIP-28-400-1.778
BLOCK DIAGRAM
18 6
16 ^L1
L2
15
14 ^L3
L4
13
8 ^R1
9 ^R2
10 ^R3
R4
11
Input
Selection
&
Gain
Control
CREF
28
Supply
12
17 12 20 19
3
24
L
Volume &
Loudness
Bass
Treble
Speaker
ATT/Mute
Serial Bus Decoder + Latches
SCL
27
SDA
26
DGND
25
Volume &
Loudness
Bass
Treble
Speaker
ATT/Mute
5
7 22 21
4
R
23
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2007.09.25
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