MOSA

MS6323

16-Bits Stereo Audio DAC

REV1.1

7

www.mosanalog.com

APPLICATION INFORMATION

MP3 digital to analog converting solution

BCK

WS

DATA

GND

VoR

CAP

VoL

V

DD

MS6323

100uF

MS6308

68pF

39k

22k

22k

1nF

15k

1.2nF

1uF

100k

1uF

100k

10Ω

Supply

V

REF

10uF

0.1uF

1uF

f

DC

V

V

For V

Headphone

(32Ω)

Fig.4

A third order lowpass filter ( Smoothing filter ) for DAC output.

0.1uF

BCK

WS

DATA

GND

VoR

CAP

VoL

V

DD

MS6323

1

2

3

45

6

7

8

47uF

MS6308

1

2

3

DAC

Headphone Driver

22k

450pF

50k

50k

10uF

V

RE

F

20k

20k

20k

470pF

0.1uF

7

5

6

47uF

1uF

MP3 DECODER

1.65V

PP

1.65V

PP

Headphone

(32Ω)

PHONE JACK

SUNPLUS

SPCA751

STMicroelectronics

STA013

AV

DD

10Ω

Supply

47uF

0.1uF

3.3V

Fig.5

A first order lowpass filter for DAC output.