WM9090ECS/R Wolfson Microelectronics, WM9090ECS/R Datasheet - Page 66

• Manufacturer Part Number: WM9090ECS/R
• Description: Audio CODECs Audio Subsystem w/ capless headphones
• Manufacturer: Wolfson Microelectronics

Specifications of WM9090ECS/R

• Interface Type: 2-Wire, l2C
• Thd Plus Noise: 80 dB
• Ic Function: Ultra Low Power Audio Subsystem
• Brief Features: Mono Class D Speaker Driver, Automatic Gain Control (AGC)
• Supply Voltage Range: 2.7V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM9090
w
Register 54h DC Servo 0
Register 55h DC Servo 1
Register 57h DC Servo 3
Readback 0
DC Servo 1
DC Servo 3
REGISTER
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
ADDRESS
R85 (55h)
R87 (57h)
R88 (58h)
DC Servo
11:5
15:8
BIT
BIT
BIT
BIT
3:0
7:0
9:8
5:4
1
0
DCS_TIMER_P
DCS_SERIES_
DCS_ENA_CH
DCS_ENA_CH
R_VAL_1 [7:0]
R_VAL_0 [7:0]
DCS_CAL_CO
DCS_DAC_W
DCS_DAC_W
MPLETE [1:0]
DCS_DAC_W
NO_01 [6:0]
ERIOD_01
LABEL
LABEL
LABEL
LABEL
AN_1
AN_0
[3:0]
0000_0000 DC Offset value for HPOUT1L in DAC Write DC Servo
0000_0000 DC Offset value for HPOUT1R in DAC Write DC Servo
DEFAULT
DEFAULT
DEFAULT
DEFAULT
010_1010 Number of DC Servo updates to perform in a series
1010
00
00
0
0
In readback, a value of 1 indicates that the DC Servo
DAC Write correction is in progress.
DC Servo enable for HPOUT1L
0 = Disabled
1 = Enabled
DC Servo enable for HPOUT1R
0 = Disabled
1 = Enabled
event.
0 = 1 updates
1 = 2 updates
...
127 = 128 updates
Time between periodic updates. Time is calculated as
0.256s x (2^PERIOD)
0000 = Off
0001 = 0.52s
1010 = 266s (4min 26s)
1111 = 8519s (2hr 22s)
mode.
Two’s complement format.
LSB is 0.25mV.
Range is +/-32mV
mode.
Two’s complement format.
LSB is 0.25mV.
Range is +/-32mV
DC Servo Complete status
00 = DAC Write or Start-Up DC Servo mode not
completed.
01 = DAC Write or Start-Up DC Servo mode complete
on HPOUT1R only.
10 = DAC Write or Start-Up DC Servo mode complete
on HPOUT1L only.
11 = DAC Write or Start-Up DC Servo mode complete
on HPOUT1L and HPOUT1R.
DC Servo DAC Write status
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, January 2010, Rev 3.0
REFER TO
REFER TO
REFER TO
REFER TO
Pre-Production
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