WM9090 Datasheet, PDF (61/81 Pages) Wolfson Microelectronics plc – Ultra Low Power Audio Subsystem

Production Data
REGISTER BIT
ADDRESS
R25 (19h)
8
IN1 Line
Input B
Volume
7
6
2:0
LABEL
DEFAULT
DESCRIPTION
IN1_VU
IN1B_MUTE
IN1B_ZC
IN1B_VOL
[2:0]
N/A IN1 Volume Update
Writing a 1 to this bit will cause IN1A and IN1B input
PGA volumes to be updated simultaneously
1
IN1B PGA Mute
0 = Un-Mute
1 = Mute
0
IN1B PGA Zero Cross Control
0 = Change gain immediately
1 = Change gain on zero cross only
011 IN1B Volume (differential mode)
000 = -6dB
001 = -3.5dB
010 = 0dB
011 = +3.5dB
100 = +6dB
101 = +12dB
110 = +18dB
111 = +18dB
Register 19h IN1 Line Input B Volume
IN1B Volume (single-ended mode)
000 = 0dB
001 = +2.5dB
010 = +6dB
011 = +9.5dB
100 = +12dB
101 = +18dB
110 = +24dB
111 = +24dB
WM9090
REFER TO
REGISTER BIT
ADDRESS
R26 (1Ah)
8
IN2 Line
Input A
Volume
7
6
2:0
LABEL
DEFAULT
DESCRIPTION
IN2_VU
IN2A_MUTE
IN2A_ZC
IN2A_VOL
[2:0]
N/A Input PGA Volume Update
Writing a 1 to this bit will cause IN2A and IN2B input
PGA volumes to be updated simultaneously
1
IN2A PGA Mute
0 = Un-Mute
1 = Mute
0
IN2A PGA Zero Cross Control
0 = Change gain immediately
1 = Change gain on zero cross only
011 IN2A Volume (differential mode)
000 = -6dB
001 = -3.5dB
010 = 0dB
011 = +3.5dB
100 = +6dB
101 = +12dB
110 = +18dB
111 = +18dB
REFER TO
w
PD, November 2010, Rev 4.1
61