AK4673 Datasheet, PDF (61/107 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP and Touch Screen Controller

[AK4673]
<Analog Mixing Circuit for Stereo Line Output>
When AIN3 bit = “0”, DACL, MINL, LINL2, RINR2, LINL4 and RINR4 bits controls each path switch.
MIN path mixing gain is 0dB(typ)@LOVL bit = “0” when the external input resistance is 20kΩ.
LIN2, RIN2, LIN4, RIN4 and DAC pathes mixing gain is 0dB(typ)@LOVL bit = “0”.
LINL2 bit
LIN2 pin
0dB
LIN4 pin
MIN pin
LINL4 bit
0dB
M
MINL bit
I
0dB
X
LOUT pin
DAC Lch
DACL bit
0dB
Figure 47. LOUT Mixing Circuit (AIN3 bit = “0”, LOVL bit = “0”)
RIN2 pin
RINR2 bit
0dB
RIN4 pin
MIN pin
RINR4 bit
0dB
M
MINL bit
I
0dB
X
ROUT pin
DAC Rch
DACL bit
0dB
Figure 48. ROUT Mixing Circuit (AIN3 bit = “0”, LOVL bit = “0”)
MS0670-E-00
- 61 -
2007/09