Silan
Semiconductors
SC7313
SOP-28
DIGITAL CONTROLLED STEREO
AUDIO PROCESSOR WITH LOUDNESS
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 BIPOLAR/CMOS technology, low
distortion, low noise and low DC stepping are obtained.
DIP-28
FEATURES
ORDERING INFORMATION
* Input multiplexer:
--3 stereo inputs
Device
SC7313
SC7313S
Package
--Selectable input gain for optimal adaptation to different
sources
DIP-28-600-2.54
SOP-28-375-1.27
* Four speaker attenuators:
--4 independent speakers control in 1.25dB steps for
balance and fader facilities
* Loudness function
* Volume control in 1.25dB steps
* Treble and bass control
--Independent mute function
* All functions programmable via serial I2C Bus
* Input and output for external equalizer or
noise reduction system
PIN CONFIGURATIONS
C
REF
1
2
28 SCL
BUS
INPUTS
27
26
25
24
23
22
21
20
19
18
17
16
15
V
DD
SDA
3
GND
L
DIG GND
OUT LF
OUT RF
OUT LR
OUT RR
BOUT(R)
BIN(R)
4
TREBLE
5
R
6
IN(R)
OUT(R)
7
SC7313
8
LOUD
R
R3
R2
R1
9
BASS
RIGHT
INPUTS
10
11
12
13
14
BOUT(L)
BIN(L)
LOUD
L
L3
L2
OUT(L)
IN(L)
LEFT
INPUTS
L1
)
LEFT INPUTS
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1 2002.02.26
1