MOSA

MS6309/10

Low Cost 16-Bit Stereo Audio DAC

REV3

5/9

www.mosanalog.com

TIMING AND DATA FORMAT

The MS6309/10 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. 2 and 3. With a HIGH level on

the word select input (WS), data is placed in the left input register and with LOW level on the WS input, data is placed

in the right register (Fig. 1). The data in the input registers are simultaneously latched in the output registers which

control the bit switches.

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.2 Timing and 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