WM8985 Datasheet, PDF (66/118 Pages) Wolfson Microelectronics plc – Multimedia CODEC With Class D Headphone and Line Out

WM8985
Pre-Production
REGISTER
ADDRESS
R52 (34h)
LOUT1
Volume
control
BIT
LABEL
5:0 LOUT1VOL
6
LOUT1MUTE
7
LOUT1ZC
R53
ROUT1
Volume
control
8
HPVU
5:0 ROUT1VOL
6
ROUT1MUTE
7
ROUT1ZC
8
HPVU
Table 34 OUT1 Volume Control
DEFAULT
DESCRIPTION
111001
(0dB)
0
0
Not latched
111001
(0dB)
0
0
Not latched
Left headphone output volume:
(1dB steps)
000000 = -57dB
...
111001 = 0dB
...
111111 = +6dB
Left headphone output mute:
0 = Normal operation
1 = Mute
Headphone volume zero cross
enable:
1 = Change gain on zero cross only
0 = Change gain immediately
LOUT1 and ROUT1 volumes do not
update until a 1 is written to HPVU
(in reg 52 or 53)
Right headphone output volume:
(1dB steps)
000000 = -57dB
...
111001 = 0dB
...
111111 = +6dB
Right headphone output mute:
0 = Normal operation
1 = Mute
Headphone volume zero cross
enable:
1 = Change gain on zero cross only
0 = Change gain immediately
LOUT1 and ROUT1 volumes do not
update until a 1 is written to HPVU
(in reg 52 or 53)
w
PP, Rev 3.4, October 2006
66