WM1811A datasheet(103/328 Pages) WOLFSON

103 / 328 page

Production Data

WM1811A

PD, November 2013, Rev 4.1

103

OUTPUT MIXER CONTROL

The Output Mixer path select and volume controls are described in Table 57 for the Left Channel

(MIXOUTL) and Table 58 for the Right Channel (MIXOUTR). The gain of each of input path may be

controlled independently in the range 0dB to -9dB.

Note that the DAC input levels may also be controlled by the DAC Output Paths digital volume

controls(see “Digital Mixing”) and also (when applicable) by the Audio Interface Input Paths digital

volume controls(see “Digital Volume and Filter Control”).

When using the IN2LP, IN2LN, IN2RP or IN2RN signal paths to the output mixers, the buffered VMID

reference must be enabled, using the VMID_BUF_ENA register, as described in “Reference Voltages

and Master Bias”.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R45 (002Dh)

Output Mixer

(1)

IN2RN_TO_MIXOUT

IN2RN to MIXOUTL Mute

0 = Mute

1 = Un-mute

Note that VMID_BUF_ENA must be

set when using the IN2RN input to

MIXOUTL.

R49 (0031h)

Output Mixer

(5)

8:6

IN2RN_MIXOUTL_V

OL[2:0]

000

IN2RN to MIXOUTL Volume

0dB to -9dB in 3dB steps

X00 = 0dB

X01 = -3dB

X10 = -6dB

X11 = -9dB

R45 (002Dh)

Output Mixer

(1)

IN2LN_TO_MIXOUTL

IN2LN to MIXOUTL Mute

0 = Mute

1 = Un-mute

Note that VMID_BUF_ENA must be

set when using the IN2LN input to

MIXOUTL.

R47 (002Fh)

Output Mixer

(3)

8:6

IN2LN_MIXOUTL_VO

L[2:0]

000

IN2LN to MIXOUTL Volume

0dB to -9dB in 3dB steps

X00 = 0dB

X01 = -3dB

X10 = -6dB

X11 = -9dB

R45 (002Dh)

Output Mixer

(1)

IN1L_TO_MIXOUTL

IN1LPGA Output to MIXOUTL Mute

0 = Mute

1 = Un-mute

R47 (002Fh)

Output Mixer

(3)

2:0

IN1L_MIXOUTL_VOL

[2:0]

000

IN1LPGA Output to MIXOUTL

Volume

0dB to -9dB in 3dB steps

X00 = 0dB

X01 = -3dB

X10 = -6dB

X11 = -9dB

R45 (002Dh)

Output Mixer

(1)

IN1R_TO_MIXOUTL

IN1RPGA Output to MIXOUTL Mute

0 = Mute

1 = Un-mute

WM1811A Datasheet(PDF) 103 Page - Wolfson Microelectronics plc

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