Datasheet

LM49350, LM49350RLEVAL
www.ti.com SNAS359D –SEPTEMBER 2008–REVISED JUNE 2012
Table 23. ADC_INPUT (0x15h)
Bits Field Description
0 DACR_ADCR The right DAC output is added to the ADC right input.
1 DACL_ADCL The left DAC output is added to the ADC left input.
2 MICR_ADCR The right MIC input is added to the ADC right input. Setting this bit enables MIC BIAS.
3 MICL_ADCL The left MIC input is added to the ADC left input. Setting this bit enables MIC BIAS.
4 AUXR_ADCR The right AUX input is added to the ADC right input.
5 AUXL_ADCL The left AUX input is added to the ADC left input.
Table 24. MIC_L_INPUT (0x16h)
Bits Field Description
3:0 MIC_L_LEVEL This sets the gain of the left microphone preamp.
MIC_L_LEVEL Gain
0000 6dB
0001 8dB
0010 10dB
0011 12dB
0100 14dB
0101 16dB
0110 18dB
0111 20dB
1000 22dB
1001 24dB
1010 26dB
1011 28dB
1100 30dB
1101 32dB
1110 34dB
1111 36dB
4 SE_DIFF If set, the MIC_L negative input is ignored.
5 MUTE If set, the left microphone preamp is muted.
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