User Manual

���������������������������������������������������������������� Maxim Integrated Products 90
MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Table 14. Passband Filtering Registers
REGISTER BIT NAME DESCRIPTION
0x18
7 MODE1
DAI1 Passband Filtering Mode
0 = Voice filters
1 = Music filters (recommended for f
S
> 24kHz)
6
AVFLT1
DAI1 ADC Highpass Filter Mode
5
MODE1 AVFLT1
4
0 See Table 15.
1
Select a nonzero value to enable
the DC- blocking filter.
3 DHF1
DAI1 High Sample Rate Mode
Selects the sample rate range.
0 = 8kHz P LRCLK P 48kHz
1 = 48kHz P LRCLK P 96kHz
2
DVFLT1
DAI1 DAC Highpass Filter Mode
1
MODE1 DVFLT1
0 See Table 15.
0 1
Select a nonzero value to enable the DC-
blocking filter.
0x20
3 DHF2
DAI2 High Sample Rate Mode
Selects the sample rate range.
0 = 8kHz P LRCLK P 48kHz
1 = 48kHz < LRCLK P 96kHz
0 DCB2
DAI2 DC Blocking Filter
Enables a DC-blocking filter on the DAI2 playback audio path.
0 = Disabled
1 = Enabled