AK4671_10 Datasheet, PDF (82/166 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/RCV/HP-AMP

[AK4671]
L1G1 bit L1G0 bit
Gain
0
0
0dB (default)
0
1
+6dB
1
0
−6dB
1
1
N/A
Table 60. LIN1/RIN1 (or IN1+/−) Mixing Gain (typ) (N/A: Not available)
L2G1 bit L2G0 bit
Gain
0
0
0dB (default)
0
1
+6dB
1
0
−6dB
1
1
N/A
Table 61. LIN2/RIN2 (or IN2+/−) Mixing Gain (typ) (N/A: Not available)
L3G1 bit L3G0 bit
Gain
0
0
0dB (default)
0
1
+6dB
1
0
−6dB
1
1
N/A
Table 62. LIN3/RIN3 (or IN3+/−) Mixing Gain (typ) (N/A: Not available)
L4G1 bit L4G0 bit
Gain
0
0
0dB (default)
0
1
+6dB
1
0
−6dB
1
1
N/A
Table 63. LIN4/RIN4 (or IN4+/−) Mixing Gain (typ) (N/A: Not available)
LPG1 bit LPG0 bit
Gain
0
0
0dB (default)
0
1
+6dB
1
0
−6dB
1
1
N/A
Table 64. MIC-Amp Mixing Gain (typ) (N/A: Not available)
■ Analog Mixing: Full-differential Input (IN1+/IN1−/IN2+/IN2−/IN3+/IN3−/IN4+/IN4− pins)
When MDIF1, MDIF2, MDIF3 and MDIF4 bits are “1”, LIN1/RIN1, LIN2/RIN2, LIN3/RIN3 and LIN4/RIN4 pins
become IN1+/−, IN2+/−, IN3+/− and IN4+/− pins, respectively, and analog mixing is availble.
When the analog mixing is used, A/D converter is also available if PMADL or PMADR bit is “1”. When
PMAINL1=PMAINR1=PMAINL2=PMAINR2=PMAINL3=PMAINR3=PMAINL4=PMAINR4=PMMICL=PMMICR
bits = “1”, the input resistance of IN1+/−, IN2+/−, IN3+/− and IN4+/− pins becomes 25kΩ (typ) at MGNL/R0 bits = “0”
and 20kΩ (typ) at MGNL/R0 bits = “1”, respectively.
L1G1-0, L2G1-0, L3G1-0, L4G1-0 and LPG1-0 bits adjust the gain for each path (Table 60, Table 61, Table 62, Table 63,
Table 64).
MS0666-E-02
- 82 -
2010/06