FAB2210 Datasheet, PDF (31/35 Pages) Fairchild Semiconductor – Audio Subsystem with Class-G Headphone and 3.3W Mono Class-D Speaker with Dynamic Range Compression

SP_AMIX, SP_BMIX
Selects inputs to the speaker amplifier.
DIFA
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
DIFB
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
SP_AMIX
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
SP_BMIX
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Speaker Volume Inputs
(INA1-INA2+INB1-INB2)/2
(INA1-INA2)/2
(INB1-INB2)/2
Speaker Amplifier Off
(INA1-INA2+INB1+INB2)/2
(INA1-INA2)/2
(INB1+INB2)/2
Speaker Amplifier Off
(INA1+INA2+INB1-INB2)/2
(INA1+INA2)/2
(INB1-INB2)/2
Speaker Amplifier Off
(INA1+INA2+INB1+INB2)/2
(INA1+INA2)/2
(INB1+INB2)/2
Speaker Amplifier Off
ADDR
B7
0xC0
0
Default
0
B6
B5
B4
DALC[2:0]
0
0
1
B3
B2
HP_GAIN[1:0]
0
0
B1
B0
SP_GAIN[1:0]
0
0
DALC[2:0]
Sets the DRC’s clip limiter. To avoid extraneous noise, do not change this setting while the speaker amplifier is on.
DALC[2:0]
111
110
101
100
011
010
001
000
SVDD Fraction (V/V)
Reserved
Reserved
Reserved
1.15
1.00
0.95
0.90
Reserved
THD with 1KHz Sine Wave (%) (V_SVDD=3.7V, 8Ω Load)
Reserved
Reserved
Reserved
10
4.9
3
1
Reserved
© 2011 Fairchild Semiconductor Corporation
FAB2210 • Rev. 1.1.1
31
www.fairchildsemi.com