wm8903 Wolfson Microelectronics plc, wm8903 Datasheet - Page 134

• Manufacturer Part Number: wm8903
• Description: Ultra Low Power Codec For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

WM8903
R46 (2Eh)
Analogue
Left Input 1
Register 2Eh Analogue Left Input 1
R47 (2Fh)
Analogue
Right Input 1
Register 2Fh Analogue Right Input 1
w
REGISTER
REGISTER
ADDRESS
ADDRESS
5:4
3:2
1:0
BIT
BIT
5:4
3:2
1:0
6
6
R_IP_SEL_N[1:0]
L_IP_SEL_N[1:0]
L_IP_SEL_P[1:0]
R_IP_SEL_P[1:0]
INR_CM_ENA
INL_CM_ENA
L_MODE[1:0]
R_MODE[1:0]
LABEL
LABEL
DEFAULT
DEFAULT
00
01
00
00
01
00
1
1
Left Input PGA Common Mode Rejection enable
0 = Disabled
1 = Enabled
(only available for L_MODE=01 – Differential Line)
Selects input for inverting side of left input path:
00 = IN1L
01 = IN2L
1X = IN3L
Selects input for non-inverting side of left input path:
00 = IN1L
01 = IN2L
1X = IN3L
Sets the mode for the left analogue input:
00 = Single-Ended
01 = Differential Line
10 = Differential MIC
11 = Reserved
Right Input PGA Common Mode Rejection enable
0 = Disabled
1 = Enabled
(only available for R_MODE=01 – Differential Line)
Selects input for inverting side of right input path:
00 = IN1R
01 = IN2R
1X = IN3R
Selects input for non-inverting side of right input
path:
00 = IN1R
01 = IN2R
1X = IN3R
Sets the mode for the right analogue input:
00 = Single-Ended
01 = Differential Line
10 = Differential MIC
11 = Reserved
DESCRIPTION
DESCRIPTION
PP, Rev 3.1, August 2009
Pre-Production
134