WM8903 datasheet(32/178 Pages) WOLFSON

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WM8903

Production Data

PD, Rev 4.5, June 2012

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R46 (2Eh)

Analogue Left

Input 1

5:4

L_IP_SEL_N

[1:0]

In Single-Ended or Differential Line

Modes, this field selects the input pin

for the inverting side of the left input

path.

In Differential Mic Mode, this field

selects the input pin for the non-

inverting side of the left input path.

00 = IN1L

01 = IN2L

1X = IN3L

3:2

L_IP_SEL_P

[1:0]

In Single-Ended or Differential Line

Modes, this field selects the input pin

for the non-inverting side of the left

input path.

In Differential Mic Mode, this field

selects the input pin for the inverting

side of the left input path.

00 = IN1L

01 = IN2L

1X = IN3L

1:0

L_MODE [1:0]

Sets the mode for the left analogue

input:

00 = Single-Ended

01 = Differential Line

10 = Differential MIC

11 = Reserved

R47 (2Fh)

Analogue

Right Input 1

5:4

R_IP_SEL_N

[1:0]

In Single-Ended or Differential Line

Modes, this field selects the input pin

for the inverting side of the right input

path.

In Differential Mic Mode, this field

selects the input pin for the non-

inverting side of the right input path.

00 = IN1R

01 = IN2R

1X = IN3R

3:2

R_IP_SEL_P

[1:0]

In Single-Ended or Differential Line

Modes, this field selects the input pin

for the non-inverting side of the right

input path.

In Differential Mic Mode, this field

selects the input pin for the inverting

side of the right input path.

00 = IN1R

01 = IN2R

1X = IN3R

1:0

R_MODE [1:0]

Sets the mode for the right analogue

input:

00 = Single-Ended

01 = Differential Line

10 = Differential MIC

11 = Reserved

Table 2 Input PGA Mode Selection

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