WM8993 datasheet(71/229 Pages) WOLFSON

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Production Data

WM8993

PD, November 2010, Rev 4.0

OUTPUT MIXER CONTROL

The Output Mixer path select and volume controls are described in Table 42 for the Left Channel

(MIXOUTL) and Table 43 for the Right Channel (MIXOUTR). The gain of each of input path may be

controlled independently in the range described in Table 44. The DAC input levels may also be

controlled by the DAC digital volume control - see “Digital to Analogue Converter (DAC)” for further

details.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R45 (2Dh)

Output Mixer1

IN2RN_TO_MIXOUTL

IN2RN to MIXOUTL Mute

0 = Mute

1 = Un-mute

R49 (31h)

Output Mixer5

8:6

IN2RN_MIXOUTL_VOL

[2:0]

000b

IN2RN to MIXOUTL Volume

0dB to -21dB in 3dB steps

(See Table 44 for Volume Range)

R45 (2Dh)

Output Mixer1

IN2LN_TO_MIXOUTL

IN2LN to MIXOUTL Mute

0 = Mute

1 = Un-mute

R47 (2Fh)

Output Mixer3

8:6

IN2LN_MIXOUTL_VOL

[2:0]

000b

IN2LN to MIXOUTL Volume

0dB to -21dB in 3dB steps

(See Table 44 for Volume Range)

R45 (2Dh)

Output Mixer1

IN1L_TO_MIXOUTL

IN1L PGA Output to MIXOUTL

Mute

0 = Mute

1 = Un-mute

R47 (2Fh)

Output Mixer3

2:0

IN1L_MIXOUTL_VOL

[2:0]

000b

IN1L PGA Output to MIXOUTL

Volume

0dB to -21dB in 3dB steps

(See Table 44 for Volume Range)

R45 (2Dh)

Output Mixer1

IN1R_TO_MIXOUTL

IN1R PGA Output to MIXOUTL

Mute

0 = Mute

1 = Un-mute

R47 (2Fh)

Output Mixer3

5:3

IN1R_MIXOUTL_VOL

[2:0]

000b

IN1R PGA Output to MIXOUTL

Volume

0dB to -21dB in 3dB steps

(See Table 44 for Volume Range)

R45 (2Dh)

Output Mixer1

IN2LP_TO_MIXOUTL

IN2LP to MIXOUTL Mute

0 = Mute

1 = Un-mute

R47 (2Fh)

Output Mixer3

11:9

IN2LP_MIXOUTL_VOL

[2:0]

000b

IN2LP to MIXOUTL Volume

0dB to -21dB in 3dB steps

(See Table 44 for Volume Range)

R45 (2Dh)

Output Mixer1

MIXINR_TO_MIXOUTL

MIXINR Output (Right ADC bypass)

to MIXOUTL Mute

0 = Mute

1 = Un-mute

R49 (31h)

Output Mixer5

5:3

MIXINR_MIXOUTL_VO

L [2:0]

000b

MIXINR Output (Right ADC bypass)

to MIXOUTL Volume

0dB to -21dB in 3dB steps

(See Table 44 for Volume Range)

R45 (2Dh)

Output Mixer1

MIXINL_TO_MIXOUTL

MIXINL Output (Left ADC bypass)

to MIXOUTL Mute

0 = Mute

1 = Un-mute

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