ADAU1772BCPZ-R7 datasheet(105/117 Pages) AD

105 / 117 page

ADAU1772

Data Sheet

Rev. C | Page 104 of 116

Table 94. Bit Descriptions for OP_STAGE_CTRL

Bits

Bit Name

Settings

Description

Reset

Access

HP_EN_R

Sets the right channel in line output or headphone mode.

0x0

Right output in line output mode

Right output in headphone mode

HP_EN_L

Sets the left channel in line output or headphone mode.

0x0

Left output in line output mode

Left output in headphone output mode

[3:2]

HP_PDN_R

Output stage power control. Powers down the right output stage, regardless

of whether the device is in line output or headphone mode. After enabling

the headphone output, wait at least 6 ms before unmuting the headphone

output by setting HP_MUTE_R in the OP_STAGE_MUTES register to 00.

0x3

HPOUTRN/LOUTRN and HPOUTRP/LOUTRP outputs enabled

HPOUTRN/LOUTRN enabled, HPOUTRP/LOUTRP disabled

HPOUTRN/LOUTRN disabled, HPOUTRP/LOUTRP enabled

Right output stages powered down

[1:0]

HP_PDN_L

Output stage power control. Powers down the left output stage, regardless

of whether the device is in line output or headphone mode. After enabling

the headphone output, wait at least 6 ms before unmuting the headphone

output by setting HP_MUTE_L in the OP_STAGE_MUTES register to 00.

0x3

HPOUTLN/LOUTLN and HPOUTLP/LOUTLP outputs enabled

HPOUTLN/LOUTLN enabled, HPOUTLP/LOUTLP disabled

HPOUTLN/LOUTLN disabled, HPOUTLP/LOUTLP enabled

Left output stages powered down

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