max98089 Maxim Integrated Products, Inc., max98089 Datasheet - Page 101
max98089
Manufacturer Part Number
max98089
Description
Low-power, Stereo Audio Codec With Flexsound Technology
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX98089.pdf
(131 pages)
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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.
Table 22. Speaker Output Mixer Register
REGISTER
0x2C
0x2D
0x2B
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
3
2
1
0
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MIXSPR
MIXSPR
MIXSPL
MIXSPL
NAME
_GAIN
_GAIN
Left Speaker Output Mixer
1xxxxxxx = Right DAC
x1xxxxxx = MIC2
xx1xxxxx = MIC1
xxx1xxxx = INB2 (INBDIFF = 0) or INB2-INB1 (INBDIFF = 1)
xxxx1xxx = INB1
xxxxx1xx = INA2 (INBDIFF = 0) or INA2-INA1 (INADIFF = 1)
xxxxxx1x = INA1
xxxxxxx1 = Left DAC
Right Speaker Output Mixer
1xxxxxxx = Left DAC
x1xxxxxx = MIC2
xx1xxxxx = MIC1
xxx1xxxx = INB2 (INBDIFF = 0) or INB2-INB1 (INBDIFF = 1)
xxxx1xxx = INB1
xxxxx1xx = INA2 (INADIFF = 0) or INA2-INA1 (INADIFF = 1)
xxxxxx1x = INA1
xxxxxxx1 = Right DAC
Right Speaker Mixer Gain Select
00 = 0dB
01 = -6dB
10 = -9dB
11 = -12dB
Left Speaker Mixer Gain Select
00 = 0dB
01 = -6dB
10 = -9dB
11 = -12dB
Low-Power, Stereo Audio Codec
with FlexSound Technology
DESCRIPTION
MAX98089
Speaker Output Mixers
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