wm8903 Wolfson Microelectronics plc, wm8903 Datasheet - Page 140

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

WM8903
R65 (41h)
Analogue
SPK Output
Control 0
Register 41h Analogue SPK Output Control 0
R67 (43h)
DC Servo 0
Register 43h DC Servo 0
R69 (45h)
DC Servo 2
Register 45h DC Servo 2
R71 (47h)
DC Servo 4
Register 47h DC Servo 4
R72 (48h)
DC Servo 5
Register 48h DC Servo 5
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REGISTER
REGISTER
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
ADDRESS
ADDRESS
7:0
7:0
BIT
BIT
BIT
3:0
BIT
1:0
BIT
4
1
0
DCS_HPOUTL_WRITE_VA
L [7:0]
DCS_HPOUTR_WRITE_VA
L [7:0]
DCS_MASTER_ENA
SPK_DISCHARGE
DCS_MODE[1:0]
DCS_ENA[3:0]
LABEL
LABEL
VROI
LABEL
LABEL
LABEL
DEFAULT
DEFAULT
DEFAULT
00
0000
0
0
1
0000_0000 Value to send to Left Headphone Output
0000_0000 Value to send to Right Headphone Output
DEFAULT
DEFAULT
DC Servo Mode
00 = WRITE_STOP
01 = WRITE_UPDATE
10 = START_STOP
11 = START_UPDATE
Speaker Discharge Enable
0 = Disabled
1 = Enable
Select VMID_TIE_ENA resistance for disabled
Differential Lineouts
0 = 20k ohm
1 = 500 ohm
DC Servo Master Control
0 = DC Servo Reset
1 = DC Servo Enabled
DC Servo Enable
[3] - HPOUTL enable
[2] - HPOUTR enable
[1] - LINEOUTL enable
[0] - LINEOUTR enable
Servo in a WRITE mode
Two’s complement format.
LSB is 0.25mV.
Range is +/-32mV
Servo in a WRITE mode
Two’s complement format.
LSB is 0.25mV.
Range is +/-32mV
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, Rev 3.1, August 2009
Pre-Production
140