wm9090 Wolfson Microelectronics plc, wm9090 Datasheet - Page 67

• Manufacturer Part Number: wm9090
• Description: Ultra Low Power Audio Subsystem
• Manufacturer: Wolfson Microelectronics plc

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Pre-Production
Register 58h DC Servo Readback 0
Register 59h DC Servo Readback 1
Register 5Ah DC Servo Readback 2
Readback 1
Readback 2
REGISTER
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
ADDRESS
R90 (5Ah)
R89 (59h)
R96 (60h)
DC Servo
DC Servo
Analogue
HP 0
BIT
BIT
BIT
BIT
1:0
7:0
7:0
7
6
5
R_COMPLETE
DCS_STARTU
P_COMPLETE
HPOUT1L_RM
HPOUT1L_OU
HPOUT1L_DL
DCS_DAC_W
R_VAL_1_RD
DCS_DAC_W
R_VAL_0_RD
V_SHORT
LABEL
LABEL
LABEL
LABEL
[1:0]
[1:0]
[7:0]
[7:0]
TP
Y
0000_0000 Readback value for HPOUT1L.
0000_0000 Readback value for HPOUT1R.
DEFAULT
DEFAULT
DEFAULT
DEFAULT
00
0
0
0
00 = DAC Write DC Servo mode not completed.
01 = DAC Write DC Servo mode complete on
HPOUT1R only.
10 = DAC Write DC Servo mode complete on
HPOUT1L only.
11 = DAC Write DC Servo mode complete on
HPOUT1L and HPOUT1R.
DC Servo Start-Up status
00 = Start-Up DC Servo mode not completed.
01 = Start-Up DC Servo mode complete on HPOUT1R
only.
10 = Start-Up DC Servo mode complete on HPOUT1L
only.
11 = Start-Up DC Servo mode complete on HPOUT1L
and HPOUT1R.
Two’s complement format.
LSB is 0.25mV.
Range is +/-32mV
Two’s complement format.
LSB is 0.25mV.
Range is +/-32mV
Removes HPOUT1L short
0 = HPOUT1L short enabled
1 = HPOUT1L short removed
For pop-free operation, this bit should be set to 1 as the
final step in the HPOUTL Enable sequence.
Enables HPOUT1L output stage
0 = Disabled
1 = Enabled
For pop-free operation, this bit should be set to 1 after
the DC offset cancellation has been performed.
Enables HPOUT1L intermediate stage
0 = Disabled
1 = Enabled
For pop-free operation, this bit should be set to 1 after
the output signal path has been configured, and before
the DC Offset cancellation is scheduled This bit should
be set with at least 20us delay after HPOUT1L_ENA.
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, January 2010, Rev 3.0
REFER TO
REFER TO
REFER TO
REFER TO
WM9090
67