wm8918 Wolfson Microelectronics plc, wm8918 Datasheet - Page 148

• Manufacturer Part Number: wm8918
• Description: Ultra Low Power Dac For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

WM8918
Register 2Fh Analogue Right Input 1
Register 39h Analogue OUT1 Left
w
Right Input 1
REGISTER
REGISTER
ADDRESS
ADDRESS
OUT1 Left
R47 (2Fh)
R57 (39h)
Analogue
Analogue
BIT
BIT
5:4
3:2
1:0
5:0
6
8
7
6
HPOUTL_VOL[
R_IP_SEL_N[1
R_IP_SEL_P[1
HPOUTL_MUT
INR_CM_ENA
R_MODE[1:0]
HPOUT_VU
HPOUTLZC
LABEL
LABEL
5:0]
:0]
:0]
E
DEFAULT
DEFAULT
10_1101
00
01
00
1
0
0
0
Right Input PGA Common Mode Rejection enable
0 = Disabled
1 = Enabled
(only available for R_MODE=01 – Differential Line)
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 = Reserved
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 = Reserved
Sets the mode for the right analogue input:
00 = Single-Ended
01 = Differential Line
10 = Differential MIC
11 = Reserved
Left Headphone Output Mute
0 = Un-mute
1 = Mute
Headphone Output Volume Update
Writing a 1 to this bit will update HPOUTL and
HPOUTR volumes simultaneously.
Left Headphone Output Zero Cross Enable
0 = disabled
1 = enabled
Left Headphone Output Volume
000000 = -57dB
000001 = -56dB
(… 1dB steps)
111001 = 0dB
(… 1dB steps)
111110 = +5dB
111111 = +6dB
DESCRIPTION
DESCRIPTION
PD, Rev 4.0, September 2010
REFER TO
REFER TO
Production Data
148