wm8961 Wolfson Microelectronics plc, wm8961 Datasheet - Page 83

• 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

REGISTER BITS BY ADDRESS
w
WM8961
Register 00h Left Input volume
Register 01h Right Input volume
REGISTER
ADDRESS
REGISTER
Right Input
ADDRESS
Left Input
R0 (00h)
R1 (01h)
volume
volume
15:12
11:9
BIT
5:0
5:0
BIT
8
7
6
8
7
6
DEVICE_ID [3:0]
CHIP_REV[2:0]
LINVOL[5:0]
RINVOL[5:0]
LINMUTE
RINMUTE
LABEL
IPVU
LIZC
LABEL
IPVU
RIZC
DEFAULT
01_1111
DEFAULT
01_1111
0
1
0
0000
010
0
1
0
Write 1 to do a volume update on inputs
Left Input PGA Analogue Mute
1 = Enable Mute
0 = Disable Mute
Note: IPVU must be set to un-mute.
Zero cross enable. Requires separate register write before volume setting.
0 : Disable zero cross on left input PGA
1 : Enable zero cross
Left input PGA gain, 0.75dB steps
000000 : -23.25dB
000001 : -22.50dB
…
011111 : 0dB
…
111110 : 23.25dB
111111 : 24.00dB
Reading from this register will indicate device family ID
Device ID: [3:0]
0000 = 1801
0001-1111 : unused
Device Revision: [2:0]
000 = Rev A
001 = Rev B
010 = Rev C
011-111 : unused
Write 1 to do a volume update on inputs
Right Input PGA Analogue Mute
1 = Enable Mute
0 = Disable Mute
Note: IPVU must be set to un-mute.
Zero cross enable. Requires separate register write before volume
setting.
0 : Disable
1 : Enable
Right input PGA gain, 0.75dB steps
000000 : -23.25dB
000001 : -22.50dB
…
011111 : 0dB
…
111110 : 23.25dB
111111 : 24.00dB
DESCRIPTION
DESCRIPTION
PP, August 2009, Rev 3.1
Pre-Production
83