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

Register 36

– DAC Control 14, Default 1111 1101

Bit Name

Bit

Description

Shelving_b[15:8]

7:0

30-bit a coefficient for shelving filter

Default value is {5'h0f, 5'h1f, 5'h0f, 5'h1f, 5'h0f, 5'h1f}

Register 37

– DAC Control 15, Default 1111 1111

Bit Name

Bit

Description

Shelving_b[7:0]

7:0

30-bit a coefficient for shelving filter

Default value is {5'h0f, 5'h1f, 5'h0f, 5'h1f, 5'h0f, 5'h1f}

Register 38

– DAC Control 16, Default 0000 0000

Bit Name

Bit

Description

LMIXSEL

5:3

Left input select for output mix

000

– reserved (default)

001

– LIN1

010

– reserved

011

– left ADC input (after mic amplifier)

RMIXSEL

2:0

Right input select for output mix

000

– reserved (default)

001

– RIN1

010

– LIN2

011

– right ADC input (after mic amplifier)

Register 39

– DAC Control 17, Default 0011 1000

Bit Name

Bit

Description

LD2LO

7

0

– left DAC to left mixer disable (default)

1

– left DAC to left mixer enable

LI2LO

6

0

– LIN signal to left mixer disable (default)

1

– LIN signal to left mixer enable

LI2LOVOL

5:3

LIN signal to left 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 40

– DAC Control 18, Default 0011 1000

Bit Name

Bit

Description

RD2LO

7

0

– right DAC to left mixer disable (default)

1

– right DAC to left mixer enable

RI2LO

6

0

– RIN signal to left mixer disable (default)

1

– RIN signal to left mixer enable

RI2LOVOL

5:3

RIN signal to left 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 41

– DAC Control 19, Default 0011 1000

Bit Name

Bit

Description

LD2RO

7

0

– left DAC to right mixer disable (default)

1

– left DAC to right mixer enable