max98089 Maxim Integrated Products, Inc., max98089 Datasheet - Page 81

• Manufacturer Part Number: max98089
• Description: Low-power, Stereo Audio Codec With Flexsound Technology
• Manufacturer: Maxim Integrated Products, Inc.

Table 10. Digital Audio Interface Registers (continued)
REGISTER
0x15/0x1D
0x16/0x1E
BIT
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7
6
5
2
1
0
7
6
5
4
3
DAC_OSR1/
DAC_OSR2
SEL1/SEL2
DMONO1/
DMONO2
LBEN1/
BSEL1/
LBEN2
BSEL2
LTEN1
NAME
OSR1
ADC Oversampling Ratio
Use the higher setting for maximum performance. Use the lower setting for reduced
power consumption at the expense of performance.
00 = 96x
01 = 64x
10 = Reserved
11 = Reserved
DAC Oversample Clock (Select PCLK/2 for higher performance. Select PCLK/4 for
lower power consumption.)
1 = DAC input clock = PCLK/2
0 = DAC input clock = PCLK/4
DAI1/DAI2 BCLK Output Frequency
When operating in master mode, BSEL1/BSEL2 set the frequency of BCLK. When op-
erating in slave mode, BSEL1/BSEL2 have no effect. Select the lowest BCLK frequency
that clocks all data input to the DAC and output by the ADC.
000 = BCLK disabled
001 = 64 x LRCLK
010 = 48 x LRCLK
011 = 128 x LRCLK (invalid for DHF1/DHF2 = 1)
100 = PCLK/2
101 = PCLK/4
110 = PCLK/8
111 = PCLK/16
DAI1/DAI2 Audio Port Selector
Selects which port is used by DAI1/DAI2.
00 = None
01 = Port S1
10 = Port S2
11 = Reserved
DAI1 Digital Loopthrough
Connects the output of the record signal path to the input of the playback path. Data
input to DAI1 from an external device is mixed with the recorded audio signal.
0 = Disabled
1 = Enabled
DAI1/DAI2 Digital Audio Interface Loopback
LBEN1 routes the digital audio input to DAI1 back out on DAI2. LBEN2 routes the digital
audio input to DAI2 back out on DAI1. Selecting LBEN2 disables the ADC output data.
0 = Disabled
1 = Enabled
DAI1/DAI2 DAC Mono Mix
Mixes the left and right digital input to mono and routes the combined signal to the left
and right playback paths. The left and right input data is attenuated by 6dB prior to the
mono mix.
0 = Disabled
1 = Enabled
DESCRIPTION
Low-Power, Stereo Audio Codec
with FlexSound Technology
MAX98089