Rainbow Electronics MAX98088 - Manual (Page 97)

Stereo Audio Codec
with FLEXSOUND Technology
MAX98088
97
Table 22. Speaker Output Mixer Register
Speaker Output Mixers
The IC's speaker amplifiers accept input from the stereo DAC, the line inputs (single-ended ore differential), and the MIC inputs.
Configure the mixer to mix any combination of the available sources. When more than one signal is selected, the mixer can
be configured to attenuate the signal by 6dB, 9dB or 12dB.
REGISTER BIT NAME DESCRIPTION
0x2B
7
MIXSPL
Left Speaker Output Mixer
1xxxxxxx = Right DAC
x1xxxxxx = MIC1
xx1xxxxx = MIC2
xxx1xxxx = INA2 (INADIFF = 0) or INA2-INA1 (INADIFF = 1)
xxxx1xxx = INA1
xxxxx1xx = INB2 (INBDIFF = 0) or INB2-INB1 (INBDIFF = 1)
xxxxxx1x = INB1
xxxxxxx1 = Left DAC
6
5
4
3
2
1
0
0x2C
7
MIXSPR
Right Speaker Output Mixer
1xxxxxxx = Left DAC
x1xxxxxx = MIC1
xx1xxxxx = MIC2
xxx1xxxx = INA2 (INADIFF = 0) or INA2-INA1 (INADIFF = 1)
xxxx1xxx = INA1
xxxxx1xx = INB2 (INBDIFF = 0) or INB2-INB1 (INBDIFF = 1)
xxxxxx1x = INB1
xxxxxxx1 = Right DAC
6
5
4
3
2
1
0
0x2D
3
MIXSPR
_GAIN
Right Speaker Mixer Gain Select
00 = 0dB
01 = -6dB
10 = -9dB
11 = -12dB
2
1
MIXSPL
_GAIN
Left Speaker Mixer Gain Select
00 = 0dB
01 = -6dB
10 = -9dB
11 = -12dB
0