WM8350 Datasheet, PDF (256/340 Pages) Wolfson Microelectronics plc – Wolfson AudioPlus™ Stereo CODEC with Power Management

WM8350
REGISTER BIT
ADDRESS
LABEL
Register 4Ah Mic Bias Control
DEFAULT
DESCRIPTION
Production Data
REFER TO
00 = 400μA
01 = 900μA
10 = 1350μA
11 = 1800μA
These threshold currents scale proportionally with
AVDD. The values given are for AVDD=3.3V.
REGISTER BIT
ADDRESS
R76 (4Ch) 11
Output
Control
10
9
LABEL
OUT4_VROI
DEFAULT
0
OUT3_VROI
0
OUT2_VROI
0
8
OUT1_VROI
0
4 OUTPUT_DRAIN_ENA
0
2
OUT2_FB
0
0
OUT1_FB
0
Register 4Ch Output Control
DESCRIPTION
VREF (AVDD/2) to OUT4 resistance
0 = approx 500 ohms
1 = approx 30 kOhms
VREF (AVDD/2) to OUT3 resistance
0 = approx 500 ohms
1 = approx 30 kOhms
VREF (AVDD/2) to OUT2L and OUT2R
resistance
0 = approx 500 ohms
1 = approx 30 kOhms
VREF (AVDD/2) to OUT1L and OUT1R
resistance
0 = approx 500 ohms
1 = approx 30 kOhms
Enables a drain on the outputs allowing the
amplifiers to shutdown more quickly.
0 = Shutdown as normal
1 = Sink current from an external capacitor,
allowing faster shutdown.
Enable Headphone common mode ground
feedback for OUT2
0 = disabled (HPCOM unused)
1 = enabled (common mode feedback through
HPCOM)
Enable Headphone common mode ground
feedback for OUT1
0 = disabled (HPCOM unused)
1 = enabled (common mode feedback through
HPCOM)
REFER TO
REGISTER BIT
ADDRESS
R77 (4Dh)
15
Jack Detect
14
LABEL
JDL_ENA
JDR_ENA
Register 4Dh Jack Detect
DEFAULT
DESCRIPTION
0
Jack Detect Enable for inputs connected to IN2L
0 = disabled
1 = enabled
0
Jack Detect Enable for input connected to IN2R
0 = disabled
1 = enabled
REFER TO
w
PD, February 2011, Rev 4.4
256