WM9090 Datasheet, PDF (64/81 Pages) Wolfson Microelectronics plc – Ultra Low Power Audio Subsystem

WM9090
REGISTER
ADDRESS
R36 (24h)
SPKOUT
Mixers
BIT
LABEL
DEFAULT
DESCRIPTION
4 SPKMIXL_TO_
1
SPKMIX to Speaker Output enable
SPKOUTL
0 = Disabled
1 = Enabled
Register 24h SPKOUT Mixers
Production Data
REFER TO
REGISTER BIT
LABEL
DEFAULT
DESCRIPTION
ADDRESS
R37 (25h)
5:3 SPKOUTL_BO
000
Speaker Output Gain Boost
ClassD3
OST [2:0]
000 = 1.00x boost (+0dB)
001 = 1.19x boost (+1.5dB)
010 = 1.41x boost (+3.0dB)
011 = 1.68x boost (+4.5dB)
100 = 2.00x boost (+6.0dB)
101 = 2.37x boost (+7.5dB)
110 = 2.81x boost (+9.0dB)
111 = 3.98x boost (+12.0dB)
Register 25h ClassD3
REFER TO
REGISTER BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
ADDRESS
R38 (26h)
8
SPKOUT_VU
N/A Speaker Output PGA Volume Update
Speaker
Volume Left
7
SPKOUTL_ZC
Writing a 1 to this bit will update the SPKOUTL volume.
0
Speaker Output PGA Zero Cross Control
0 = Change gain immediately
1 = Change gain on zero cross only
6 SPKOUTL_MU
0
Speaker Output PGA Mute
TE
0 = Un-mute
1 = Mute
5:0 SPKOUTL_VO 11_1001 Speaker Output PGA Volume
L [5:0]
-57dB to +6dB in 1dB steps
Register 26h Speaker Volume Left
REGISTER BIT
LABEL
DEFAULT
DESCRIPTION
ADDRESS
R45 (2Dh)
Output
Mixer1
6 IN1A_TO_MIX
OUTL
0
IN1A to MIXOUTL enable
0 = Disabled
1 = Enabled
2 IN2A_TO_MIX
OUTL
0
IN2A to MIXOUTL enable
0 = Disabled
1 = Enabled
Register 2Dh Output Mixer1
REFER TO
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PD, November 2010, Rev 4.1
64