CS4222 데이터 시트보기 (PDF) - Cirrus Logic

부품명

상세내역

제조사

CS4222

20-Bit Stereo Audio Codec with Volume Control

Cirrus Logic 

CS4222

DAC Control Byte (2)

B7

B6

B5

B4

B3

B2

B1

PDDA

MUTC

MUTR

MUTL

SOFT

0

RMP1

PDDA

Powers down DAC

0 - Normal.

1 - Power down

MUTC

Controls mute on consecutive zeros function

0 - 512 consecutive zeros will mute DAC

1 - DAC output will not mute on zeros.

MUTR-MUTL

Mute control bits

0 - Normal output level

1 - Selected DAC output muted

SOFT

Soft Mute Control

0 - Volume control changes, muting and mute-on-zeros occur with "ramp"

1 - Volume control changes, muting and mute-on-zeros occur on zero crossings

RMP1-0

Soft Volume 0.5 dB step rate

0 - 1 step per 8 LRCK's

1 - 1 step per 4 LRCK's

2 - 1 step per 16 LRCK's

3 - 1 step per 32 LRCK's

This register defaults to 00h.

Output Attenuator Data Byte (3, 4)

B7

ATT7

B6

ATT6

B5

ATT5

B4

ATT4

ATT7-ATT0

Sets attenuator level

0 - No attenuation

227 - 113.5 dB attenuation

>227 - DAC muted

ATT0 represents 0.5 dB of attenuation

This register defaults to 00h.

B3

ATT3

B2

ATT2

B1

ATT1

B0

RMP0

B0

ATT0

26

DS236F1

Share Link: