WM9090
Production Data
w
PD, November 2010, Rev 4.1
62
REGISTER
ADDRESS
BIT LABEL
DEFAULT
DESCRIPTION
REFER
TO
IN2A Volume (single-ended mode)
000 = 0dB
001 = +2.5dB
010 = +6dB
011 = +9.5dB
100 = +12dB
101 = +18dB
110 = +24dB
111 = +24dB
Register 1Ah
IN2 Line Input A Volume
REGISTER
ADDRESS
BIT LABEL
DEFAULT
DESCRIPTION
REFER
TO
R27 (1Bh)
IN2 Line
Input B
Volume
8 IN2_VU N/A
Input PGA Volume Update
Writing a 1 to this bit will cause IN2A and IN2B input
PGA volumes to be updated simultaneously
7 IN2B_MUTE 1 IN2B PGA Mute
0 = Un-Mute
1 = Mute
6 IN2B_ZC 0
IN2B PGA Zero Cross Control
0 = Change gain immediately
1 = Change gain on zero cross only
2:0 IN2B_VOL
[2:0]
011
IN2B Volume (differential mode)
000 = -6dB
001 = -3.5dB
010 = 0dB
011 = +3.5dB
100 = +6dB
101 = +12dB
110 = +18dB
111 = +18dB
IN2B Volume (single-ended mode)
000 = 0dB
001 = +2.5dB
010 = +6dB
011 = +9.5dB
100 = +12dB
101 = +18dB
110 = +24dB
111 = +24dB
Register 1Bh
IN2 Line Input B Volume
REGISTER
ADDRESS
BIT LABEL
DEFAULT
DESCRIPTION
REFER
TO
R28 (1Ch)
Left Output
Volume
8 HPOUT1_VU N/A Headphone Output PGA Volume Update
Writing a 1 to this bit will update HPOUT1LVOL and
HPOUT1RVOL volumes simultaneously.
7 HPOUT1L_ZC 0 Left Headphone Output PGA Zero Cross Control
0 = Change gain immediately
1 = Change gain on zero cross only
