max98089 Maxim Integrated Products, Inc., max98089 Datasheet - Page 110
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 headphone amplifier mixer accepts input from the
stereo DAC, the line inputs (single-ended or differential),
and the MIC inputs. Configure the mixer to mix any com-
bination of the available sources. When more than one
Table 27. Headphone Output Mixer Register
REGISTER
0x25
0x26
0x27
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
5
4
3
2
1
0
��������������������������������������������������������������� Maxim Integrated Products 110
MIXHPR_ PATH
MIXHPL_ PATH
MIXHPR
MIXHPR
MIXHPL
MIXHPL
NAME
_GAIN
_GAIN
SEL
SEL
Headphone Output Mixers
Left Headphone Output Mixer
1xxxxxxx = Right DAC
x1xxxxxx = MIC2
xx1xxxxx = MIC1
xxx1xxxx = INB2 (INBDIFF = 0) or INB2-INB1 (INADIFF = 1)
xxxx1xxx = INB1
xxxxx1xx = INA2 (INADIFF = 0) or INA2-INA1 (INADIFF = 1)
xxxxxx1x = INA1
xxxxxxx1 = Left DAC
Right Headphone 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 Headphone Mixer Path Select
0 = Directly connect to the right DAC (bypass right headphone output mixer)
1 = Right headphone output mixer
Left Headphone Mixer Path Select
0 = Directly connect to the left DAC (bypass left headphone output mixer)
1 = Left headphone output mixer
Right Headphone Mixer Gain Select
00 = 0dB
01 = -6dB
10 = -9dB
11 = -12dB
Left Headphone Mixer Gain Select
00 = 0dB
01 = -6dB
10 = -9dB
11 = -12dB
Low-Power, Stereo Audio Codec
with FlexSound Technology
signal is selected, the mixer can be configured to attenu-
ate the signal by 6dB, 9dB, or 12dB. The stereo DAC
can bypass the headphone mixers, and be connected
directly to the headphone amplifiers to provide lower
power consumption.
DESCRIPTION
MAX98089
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