WM8351 datasheet(89/330 Pages) WOLFSON

89 / 330 page

Production Data

WM8351

PD, April 2012, Rev 4.5

OUT3 can provide a buffered midrail headphone pseudo-ground, or a left line output. It can also be a

common mode input for OUT2L/OUT2R. OUT4 can provide a buffered midrail headphone pseudo-

ground, a right line output, or a mono mix output. It can also be mixed into the input boost mixer for

recording.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R92 (5Ch)

OUT3 Mixer

DACL_TO_OUT3

Left DAC output to OUT3

0 = disabled

1 = enabled

MIXINL_TO_OUT3

Left input mixer to OUT3

0 = disabled

1 = enabled

OUT4_TO_OUT3

OUT4 mixer to OUT3

0 = disabled

1 = enabled

MIXOUTL_TO_OUT

Left output mixer to OUT3

0 = disabled

1 = enabled

R92 (5Ch)

OUT3 Mixer

OUT3_ENA

OUT3 enable

0 = disabled

1 = enabled

R9 (09h)

Power Mgmt 2

Note:

OUT3_ENA can be accessed through R92 or R9. Reading from or writing to either register

location has the same effect.

Table 44 Controlling the OUT3 Mixer

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R93 (5Dh)

OUT4 Mixer

DACR_TO_OUT4

Right DAC output to OUT4

0 = disabled

1 = enabled

DACL_TO_OUT4

Left DAC output to OUT4

0 = Disabled

1 = Enabled

OUT4_ATT

Reduce OUT4 output by 6dB

0 = Output at normal level

1 = Output reduced by 6dB

MIXINR_TO_OUT4

Right input mixer to OUT4

0 = disabled

1 = enabled

OUT3_TO_OUT4

OUT3 mixer to OUT4

This function is not supported

MIXOUTR_TO OUT4

Right output mixer to OUT4

0 = Disabled

1 = Enabled

MIXOUTL_TO_OUT4

Left output mixer to OUT4

0 = disabled

1 = enabled

R93 (5Dh)

OUT4 Mixer

OUT4_ENA

OUT4 enable

0 = disabled

1 = enabled

R9 (09h)

Power Mgmt 2

Note:

OUT4_ENA can be accessed through R93 or R9. Reading from or writing to either register

location has the same effect.

Table 45 Controlling the OUT4 Mixer

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