wm9081 Wolfson Microelectronics plc, wm9081 Datasheet - Page 85

• Manufacturer Part Number: wm9081
• Description: Mono Dac With 2.6w Class Ab/d Speaker Driver, Dynamic Range Controller And Retune Mobile Parametric Equalizer
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
Register 07h Analogue Mixer
Register 08h Anti Pop Control
Register 09h Analogue Speaker 1
w
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
Speaker 1
Analogue
R8 (08h)
R9 (09h)
Anti Pop
Control
Mixer
BIT
BIT
BIT
5:3
2:0
3
2
1
0
2
1
0
LINEOUT_CLA
SPK_DCGAIN[
SPK_ACGAIN[
LINEOUT_DIS
LINEOUT_VR
IN2_VOL
IN2_ENA
IN1_VOL
IN1_ENA
LABEL
LABEL
LABEL
2:0]
2:0]
CH
MP
OI
DEFAULT
DEFAULT
DEFAULT
(+3.6dB)
(+3.6dB)
011
011
0
0
0
0
0
0
0
1 = Enabled
IN2 Volume Control
0 = 0dB
1 = -6dB
IN2 Path Enable
0 = Disabled
1 = Enabled
IN1 Volume Control
0 = 0dB
1 = -6dB
IN1 Path Enable
0 = Disabled
1 = Enabled
Discharges LINEOUT via approx 5kohm resistor
0 = Not active
1 = Actively discharging LINEOUT
Buffered VMID to LINEOUT Resistance. This applies
when LINEOUT_ENA = 0 and LINEOUT_CLAMP = 1.
0 = 20k Ω from buffered VMID to output
1 = 500 Ω from buffered VMID to output
Clamp LINEOUT to buffered VMID. VMID_BUF_ENA
must be set. This bit is only effective when
LINEOUT_ENA = 0. The resistance is set by
LINEOUT_VROI.
0 = Disabled
1 = Enabled (LINEOUT clamped to VMID)
Speaker Output DC Gain
000 = x1 boost (0dB)
001 = x1.27 boost(2.1dB)
010 = x1.4 boost (2.9dB)
011 = x1.52 boost (3.6dB)
100 = x1.67 boost (4.5dB)
101 = x1.8 boost (5.1dB)
110-111 = Reserved
Speaker Output AC Gain
000 = x1 boost (0dB)
001 = x1.27 boost(2.1dB)
010 = x1.4 boost (2.9dB)
011 = x1.52 boost (3.6dB)
100 = x1.67 boost (4.5dB)
101 = x1.8 boost (5.1dB)
110-111 = Reserved
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, Rev 3.0, April 2009
Signal Path
Control
Signal Path
Control
Signal Path
Control
Signal Path
Control
Pop
Suppression
Control
Pop
Suppression
Control
Pop
Suppression
Control
Analogue
Outputs
Analogue
Outputs
REFER TO
REFER TO
REFER TO
WM9081
85