MS6311ASGU datasheet(4/6 Pages) MOSA

4 / 6 page

MOSA

MS6311

16Bits Stereo Audio DAC

REV 3

www.mosanalog.com

TIMING AND DATA FORMAT

The MS6311 accepts input serial data formats of 16-bit word length. Left and right data words are time

multiplexed. The MSB (bit 1) 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. Internal bias currents IBL and IBR are each added to the full scale output current IFS in

order to achieve the maximum dynamic range at the outputs of OP1 and OP2(Fig. 1). The reference voltage Vref (Fig. 1)

is approximately 2/3 VDD. In this way the maximum dynamic range is achieved over the entire power supply range.

RIGHT

BCK

DATA

LSB

MSB

LEFT

Fig.2

Timing and input signals.

210

MSB

LSB

210

MSB

LSB

RIGHT

LEFT

BCK

DATA

Fig.3 Right justified format

Data format (BCK, WS, DATA)

Symbol

Parameter

Conditions

Min

Typ.

Max

Unit

VIL

Input LOW level

0.8

VIH

Input HIGH level

l I IL l

Input Leakage Current LOW

VI = 0.8V

A

l I IH l

Input Leakage Current HIGH

VI = 2.4V

A

BCK

Input Clock Frequency

18.4

MHz

Bit Rate Data Input

18.4

Mbits/s

Word Select Input

384

kHz

t r

Rise Time

t f

Fall Time

t Cr

Bit Clock Cycle Time

t HB

Bit Clock High Time

t LB

Bit Clock Low Time

t SD

Data Set-up Time

t HD

Data Hold Time to Bit Clock

t HW

Word Select Hold Time

t SW

Word Select Set-up Time

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