MOSA

MS6714L

Low Cost 4 Stereo Inputs / 1 Stereo Output Audio Processor

REV 2

1/14

www.mosanalog.com

Low Cost 4 Stereo Inputs and 1 Stereo Output

Volume, Tone, Balance, Loudness and

Selectable Input Gain

FEATURES

•Operation range : 2.7V~6.5V

•4 stereo inputs with selectable input gain

•2 independent speaker controls for balance

•Tone controls (treble and bass)

•Loudness and independent mute function

•Volume control in 1.25 dB/step

•I

•Components less and good PSRR

•Housed in SSOP28 package

‧ Cost efficient.

APPLICATIONS

•Portable audio device

•Car stereo audio

•Hi-Fi audio system

DESCRIPTION

The MS6714L is a 4 stereo inputs/2-channel outputs digital control audio processor for the low voltage operation.

Volume, tone (bass and treble), and balance (left/right) processor are incorporated into a single chip. The MS6714L

also has the loudness function and selectable input gain. These functions can be built a Hi-Fi audio system easily. All

functions are programmable via the serial I

-78.75dB, the stereo 4 is selected, all the speakers are mute and the gains of the input stage, the bass and the treble are

0dB. MS6714L is pin and function compatible with MS6714.

BLOCK DIAGRAM

RIN2

RIN1

Treble

Bass

Volume &

Londness

Volume &

Londness

Bass

Treble

LIN1

LIN2

LIN3

RIN3

REF

R

B

R

B

Input

Selector

& Gain

Control

LOUD_R

ROUT

RIN

TREB_R

BOUT_R BIN_R

LOUD_L

LOUT

LIN

TREB_L

BOUT_L BIN_L

28

6

7

9

3

4

5

14

15

16

10

11

12

20

21

22

17

18

19

Supply

AVDD AGND

1

2

Speaker

ATT

Mute

Speaker

ATT

Mute

SCL

SDA

DGND

OUT_L

OUT_R

25

26

24

23

27

Serial Bus Decoder and Latches

LIN4

RIN4

8

13