AK4648 Datasheet, PDF (80/119 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP/SPK-AMP

[AK4648]
2. Mono SPK Mode & High Power Mono SPK Mode (SPKMN bit = “0”)
DACS, MINS, LINS2, RINS2, LINS3, RINS3, LINS4, RINS4, MICL3, and MICR3 bits control each path switch. MIN
path mixing gain is +4.43dB(typ.)@SPKG2-0 bits = “000” & ALC bit = “0” when AIN3 bit is “0” and the external input
resistance is 20kΩ. DACS, LINS2, RINS2, LINS3, RINS3, LINS4, RINS4, MICL3, and MICR3 paths mixing gain is
–1.59dB(typ.) @ SPKG2-0 bits = “000” & ALC bit = “0”.
LIN2 pin
LIN4 pin
AIN3 bit
LIN3/MIN pin
MIN
LIN3
MICL3 bit
-1.59dB
-1.59dB
+4.43dB
LINS2 bit
LINS4 bit
MINS bit
-1.59dB
LINS3 bit
LIN1 pin
RIN2 pin
RIN4 pin
AIN3 bit
RIN3/VCOM pin
VCOC
RIN1 pin
MIC-Amp Lch
DACS bit
DAC Lch
-1.59dB
M
I
RINS2 bit X
-1.59dB
RINS4 bit
-1.59dB
RIN3
MICR3 bit
RINS3 bit
-1.59dB
MIC-Amp Rch
DAC Rch
DACS bit
-1.59dB
SPLP/N pin
or
SPRP/N pin
Note: When MICL3 bit is set to “1”, MIN path is not available.
Figure 59. Speaker Mixing Circuit (SPKMN bit = “0”, SPKG2-0 bits = “000”, ALC bit = “0”)
MS0625-E-01
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2007/06