MOSA

MS6331

16-Bit Stereo Audio DAC & Headphone Driver

REV 2

5/9

www.mosanalog.com

TIMING AND DATA FORMAT

The MS6331 accepts input serial data formats of 16-bit word length. Left and right data words are time

multiplexed. The MSB must always be first. The format of data input is shown in Figs. 1 and 2.

RIGHT

WS

BCK

DATA

LSB

MSB

t

r

t

HB

t

f

t

cr

t

LB

t

HW

t

SW

LEFT

t

SD

t

HD

Fig.1

Timing and input signals.

0

1

2

15

14

13

210

MSB

LSB

15

14

13

21

0

MSB

LSB

RIGHT

LEFT

WS

BCK

DATA

Fig.2

Format of input signals.

Data format (BCK, WS, DATA)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Input LOW level

-

-

0.8

V

Input HIGH level

2

-

-

V

Input Leakage Current LOW

-

-

10

Input Leakage Current HIGH

-

-

10

f

BCK

Input Clock Frequency

-

-

18.4

MHz

BR

Bit Rate Data Input

-

-

18.4

Mbits/s

f

WS

Word Select Input

-

-

384

kHz

Rise Time

-

-

12

ns

Fall Time

-

-

12

ns

Bit Clock Cycle Time

54

-

-

ns

Bit Clock High Time

15

-

-

ns

Bit Clock Low Time

15

-

-

ns

Data Set-up Time

12

-

-

ns

Data Hold Time to Bit Clock

2

-

-

ns

Word Select Hold Time

2

-

-

ns

Word Select Set-up Time

12

-

-

ns