MOSA

MS6334/6335

16-Bit Stereo Audio DAC integrated HP Driver with Volume Control

REV 1.0

10

www.mosanalog.com

Audio format and power off

MSB

LSB

Function

1

0

0

0

0

0

b1

b0

Audio format selection and preparation for power off

Audio format and power off bits

b1=1, Enable preparation for power off

b1=0, Disable preparation for power off

b0=0, Right justified format (normal format)

I

The initial state is right justified format.

Data byte

1

000

00

MSB

11

ACK

Start

1

000

01

00

MS6335 address

LSB

ACK

Stop

DAC active. Code = 7BH.

The initial state is enabled all power down mode when power on.

ACK

Start

Chip Address

ACK

0

1

1

1

1

1

10

DACPD = 0

Stop

Set the voltage of CAP to middle of supply voltage, the charge time is approximately 1 second.

Stop

Start

Chip Address

ACK

0

1

1

0

0

1

00

CAPGD = 0

HPPD = 0

OPAmp = 0

DACPD = 0

ACK

DAC mute off. Code = 60H.

The chip entered active mode.

Stop

Start

Chip Address

ACK

0

1

1

0

0

0

00

DACM = 0

ACK

Set gain of 2 channel at 0dB. Volume control code = 1BH.

Stop

Start

Chip Address

ACK

0

0

0

1

1

1

1

0

2-ch, 0dB

ACK

Set attenuation of left channel at –22.5dB. Volume control code = 2CH.

Stop

Start

Chip Address

ACK

0

0

1

0

0

0

1

1

L-ch, -22.5dB

ACK