[AK4679]
■ MIC/LINE Input Selector
The AK4679 has input selector. When MDIF1, MDIF2 and MDIF3 bits are “0”, INL1-0 and INR1-0 bits select
LIN1/LIN2/LIN3/LIN4 and RIN1/RIN2/RIN3/RIN4, respectively. When MDIF1, MDIF2 and MDIF3 bits are “1”,
LIN1/RIN1, LIN2/RIN2 and LIN3/RIN3 pins become IN1+/−, IN2−/+ and IN3+/− pins, respectively. In this case,
full-differential input is available (Figure 54). Digital microphone input is selected when DMIC bit = “1”.
MDIF1 MDIF2 MDIF3
INL1
bit
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
0
0
0
0
INL0
bit
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
INR1
INR0
Lch
Rch
bit
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
bit
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
1
bit
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
1
0
0
0
0
bit
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
0
0
0
0
1
1
0
bit
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
0
1
1
LIN1
LIN1
LIN1
LIN1
LIN2
LIN2
LIN2
LIN2
LIN3
LIN3
LIN3
LIN3
LIN4
LIN4
LIN4
LIN4
RIN1
RIN2
RIN3
RIN4
RIN1
RIN2
RIN3
RIN4
RIN1
RIN2
RIN3
RIN4
RIN1
RIN2
RIN3
RIN4
RIN1
RIN2
RIN4
IN2+/−
IN2+/−
IN2+/−
IN2+/−
RIN2
RIN3
RIN4
IN2+/−
(default)
1
0
0
0
0
0
1
0
0
0
0
0
IN3+/−
IN3+/−
IN3+/−
LIN1
LIN3
LIN4
IN3+/−
IN1+/−
IN1+/−
IN1+/−
IN1+/−
Others
N/A
Table 20. MIC-Amp Input Signal at DMIC bit = “0” (N/A: Not available)
MS1402-E-06
2013/02
- 60 -