ANALOG PRODUCTS DIVISION

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

www.protekanalog.com

PA5322

100dB, 24-Bit, 192 kHz Stereo Audio CODEC

95248 Rev.0. 01/10

NOT FOR USE IN LIFE SUPPORT SYSTEMS

001 – I

010 – Right justified, 16 bit data

011 – Reserved

100 – Reserved

101 – Right justified, 24 bit data

110 – Reserved

111 – Reserved

DeEmphasisMode

2:1

00 – De-emphasis filter disabled (default)

01 – De-emphasis filter for Fs=32 KHz

10 – De-emphasis filter for Fs=44.1 KHz

11 – De-emphasis filter for Fs=48 KHz

Reserved

0

Reserved

DAC Mute Control – 0x08

Bit Name

Bit

Description

DACMute

7

0 – un-mute analog outputs for both channels (default)

1 – mute analog outputs for both channels

DACRampRate

6

These bits define volume control ramp rate:

00 – 0.5 dB per 4 LRCK (default)

01 – 0.5 dB per 8 LRCK

10 – 0.5 dB per 16 LRCK

11 – 0.5 dB per 32 LRCK

AutoMute

5

Auto mute function: long period of zero inputs (8k audio samples) will mute the analog output.

Any single non-zero input will un-mute. 0 – disable

1 – enable (default)

DACL=R

4

0 – normal (default)

1 – both channel volume control is set by Left Volume Control register

DACSoftRamp

3

Soft ramp at mute and volume change:

0 – Disabled

1 – Enabled (default)

DACZeroCrs

1

Mute or volume change at zero crossing signal level to minimize audible noise

0 – Disabled

1 – Enabled (default)

Reserved

0

Reserved

DAC Left Volume Control – 0x09

Bit Name

Bit

Description

DACVolumeL

7:0

Digital volume control setting attenuates the signal in 0.5 dB incremental from 0 to –120 dB.

Max setting is –120 dB.

0000 0000 – no attenuation (default)

0000 0001 – 0.5 dB attenuation

0000 0010 – 1.0 dB attenuation

0000 0011 – 1.5 dB attenuation

……..

DAC Right Volume Control – 0x0a

Bit Name

Bit

Description

DACVolumeR

7:0

Same as DACVolumeL settings for DAC right channel

Digital Audio Interface

The device provides three formats of serial audio data interface to the input of the DAC or output from the ADC through LRCK, SCLK

and SDIN/SDOUT pins. The three formats are I

through pin M3.