ANALOG PRODUCTS DIVISION

561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 632-1715

www.protekanalog.com

PA5331

Low Power 24-Bit, Stereo Audio CODEC

With Headphone Amplifier

95250 Rev.0. 01/10

NOT FOR USE IN LIFE SUPPORT SYSTEMS

LI2RO

6

0

– LIN signal to right mixer disable (default)

1

– LIN signal to right mixer enable

LI2ROVOL

5:3

LIN signal to right mixer gain

000

– 6 dB

001

– 3 dB

010

– 0 dB

011

– -3 dB

100

– -6 dB

101

– -9 dB

110

– -12 dB

111

– -15 dB (default)

Register 42

– DAC Control 20, Default 0011 1000

Bit Name

Bit

Description

RD2RO

7

0

– right DAC to right mixer disable (default)

1

– right DAC to right mixer enable

RI2RO

6

0

– RIN signal to right mixer disable (default)

1

– RIN signal to right mixer enable

RI2ROVOL

5:3

RIN signal to right mixer gain

000

– 6 dB

001

– 3 dB

010

– 0 dB

011

– -3 dB

100

– -6 dB

101

– -9 dB

110

– -12 dB

111

– -15 dB (default)

Register 43

– DAC Control 21, Default 0011 1000

Bit Name

Bit

Description

LD2MO

7

0

– reserved (default)

1

– reserved

LI2MO

6

0

– reserved (default)

1

– reserved

LI2MOVOL

5:3

reserved

Register 44

– DAC Control 22, Default 0011 1000

Bit Name

Bit

Description

RD2MO

7

0

– reserved (default)

1

– reserved

RI2MO

6

0

– reserved (default)

1

– reserved

RI2MOVOL

5:3

reserved

Register 45

– DAC Control 23, Default 0000 0000

Bit Name

Bit

Description

ROUT1INV

7

0

– ROUT1 no inversion (default)

1

– ROUT1 signal inverted

OUT3SW

6:5

Reserved

VROI

4

0

– 1.5k VREF to analog output resistance (default)

1

– 40k VREF to analog output resistance

HPSWEN

3

0

– headphone switch disabled (default)

1

– headphone switch enabled

HPSWPOL

2

0

– HPDETECT high=headphone (default)

1

– HPDETECT high=speaker

MOUTINV

1

0

– reserved (default)

1

– reserved