wm8961 Wolfson Microelectronics plc, wm8961 Datasheet - Page 94

• Manufacturer Part Number: wm8961
• Description: Ultra-low Power Stereo Codec With 1w Stereo Class D Speaker Drivers And Ground Referenced Headphone Drivers
• Manufacturer: Wolfson Microelectronics plc

w
WM8961
Register 29h ROUT2 volume
Pwr Mgmt (3)
Register 2Fh Pwr Mgmt (3)
Register 30h Additional Control (4)
Register 31h Class D Control 1
Register 33h Class D Control 2
REGISTER
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
REGISTER
ADDRESS
R51 (33h)
R41 (29h)
R47 (2Fh)
ADDRESS
Control (4)
R49 (31h)
R48 (30h)
Additional
Control 2
Control 1
Class D
ROUT2
Class D
volume
2:0
BIT
BIT
6:0
BIT
BIT
BIT
8
7
1
0
7
6
1
0
CLASSD_ACGAIN[2:0]
SPKRVOL[6:0]
TEMP_WARN
TEMP_SHUT
SPKR_ENA
SPKL_ENA
TSENSEN
SPKRZC
SPKVU
LABEL
LABEL
LABEL
MBSEL
LABEL
LABEL
DEFAULT
000_0000
DEFAULT
DEFAULT
DEFAULT
0
0
0
0
0
0
1
1
DEFAULT
011
Speaker PGA volume update
Right speaker PGA zero cross enable
Right Speaker output PGA gain, 1dB steps
0000000 to 0101111 : Mute
0110000 : -73dB
…
1111001 : 0dB
…
1111111 : +6dB
Read only status of temperature sensor
triggers at 145 degrees C
Read only status of temperature sensor – triggers at 125 degrees C
Right channel class D enable
Left channel Class D enable
Enable overheat temp sensor
0: MICBIAS = 5/6 AVDD
1: MICBIAS = 7/6 AVDD
AC speaker boost (Boosts speaker AC output signal on both left
and right channels)
000 – 1.00 x boost (+0dB)
001 – 1.19 x boost (+1.5dB)
010 – 1.41 x boost (+3dB)
011 – 1.68 x boost (+4.5B)
100 – 2.00 x boost (+6B)
101 – 2.37 x boost (+7.5dB)
110 – 2.81 x boost (+9dB)
111 – 3.98 x boost (+12dB)
Note that +12dB setting will cause a full scale output signal to clip.
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, August 2009, Rev 3.1
Pre-Production
94