Silan

Semiconductors

SC7313

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.1

2002.02.26

1

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

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.

FEATURES

* Input multiplexer:

--3 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

DIP-28

SOP-28

ORDERING INFORMATION

Device

Package

SC7313

DIP-28-600-2.54

SC7313S

SOP-28-375-1.27

* Loudness function

* Volume control in 1.25dB steps

* Treble and bass control

* Input and output for external equalizer or

noise reduction system

PIN CONFIGURATIONS

SC7313

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

GND

OUT(R)

R3

R2

R1

LOUD L

L3

L2

SCL

SDA

DIG GND

OUT LF

OUT RF

OUT LR

OUT RR

BOUT(R)

BIN(R)

BOUT(L)

BIN(L)

OUT(L)

IN(L)

L1

L

R

IN(R)

LOUD R

TREBLE

RIGHT

INPUTS

LEFT

INPUTS

)

LEFT INPUTS

BUS

INPUTS

BASS