WM8994ECSSLASHR datasheet(319/363 Pages) CIRRUS

319 / 363 page

WM8994

Rev 4.6

319

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

(0510h) AIF2

ADC Filters

CUT [1:0]

00 = Hi-fi mode (fc = 4Hz at fs = 48kHz)

01 = Voice mode 1 (fc = 127Hz at fs = 8kHz)

10 = Voice mode 2 (fc = 130Hz at fs = 8kHz)

11 = Voice mode 3 (fc = 267Hz at fs = 8kHz)

AIF2ADCL_HPF

AIF2ADC (Left) output path Digital HPF Enable

0 = Disabled

1 = Enabled

AIF2ADCR_HPF

AIF2ADC (Right) output path Digital HPF Enable

0 = Disabled

1 = Enabled

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R1312

(0520h) AIF2

DAC Filters

(1)

AIF2DAC_MUT

AIF2DAC input path Soft Mute Control

0 = Un-mute

1 = Mute

AIF2DAC_MON

AIF2DAC input path Mono Mix Control

0 = Disabled

1 = Enabled

AIF2DAC_MUT

ERATE

AIF2DAC input path Soft Mute Ramp Rate

0 = Fast ramp (fs/2, maximum ramp time is 10.7ms at

fs=48k)

1 = Slow ramp (fs/32, maximum ramp time is 171ms at

fs=48k)

(Note: ramp rate scales with sample rate.)

AIF2DAC_UNM

UTE_RAMP

AIF2DAC input path Unmute Ramp select

0 = Disabling soft-mute (AIF2DAC_MUTE=0) will cause the

volume to change immediately to AIF2DACL_VOL and

AIF2DACR_VOL settings

1 = Disabling soft-mute (AIF2DAC_MUTE=0) will cause the

DAC volume to ramp up gradually to the AIF2DACL_VOL

and AIF2DACR_VOL settings

2:1

AIF2DAC_DEE

MP [1:0]

AIF2DAC input path De-Emphasis Control

00 = No de-emphasis

01 = 32kHz sample rate

10 = 44.1kHz sample rate

11 = 48kHz sample rate

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R1313

(0521h) AIF2

DAC Filters

(2)

13:9

AIF2DAC_3D_G

AIN [4:0]

0_0000

AIF2DAC playback path 3D Stereo depth

00000 = Off

00001 = Minimum (-16dB)

…(0.915dB steps)

11111 = Maximum (+11.45dB)

AIF2DAC_3D_E

Enable 3D Stereo in AIF2DAC playback path

0 = Disabled

1 = Enabled

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