|
AK4644 Datasheet, PDF (56/96 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP/RCV-AMP | |||
|
◁ |
ASAHI KASEI
[AK4644]
<Analog Mixing Circuit for Stereo Line Output>
When AIN3 bit = â0â, DACL, MINL, LINL2 and RINR2 bits controls each path switch.
MIN path mixing gain is 0dB(typ)@LOVL bit = â0â when the external input resistance is 20kâ¦.
LIN2, RIN2 and DAC pathes mixing gain is 0dB(typ)@LOVL bit = â0â.
LINL2 bit
LIN2 pin
0dB
MIN pin
MINL bit
M
0dB
I
LOUT pin
DAC Lch
DACL bit X
0dB
Figure 47. LOUT Mixing Circuit (AIN3 bit = â0â, LOVL bit = â0â)
RIN2 pin
MIN pin
DAC Rch
RINR2 bit
0dB
MINL bit
M
0dB
I
DACL bit X
0dB
ROUT pin
Figure 48. ROUT Mixing Circuit (AIN3 bit = â0â, LOVL bit = â0â)
When AIN3 bit = â1â, DACL, LINL2, RINR2, LINL3, RINR3, MICL3 and MICR3 bits controls each path switch. All
pathes mixing gain is 0dB(typ)@LOVL bit = â0â.
LIN2 pin
LINL2 bit
0dB
LIN3 pin
LIN1 pin
MICL3 bit
M
LINL3 bit
0dB
I
LOUT pin
MIC-Amp Lch
X
*These blocks are not
available at PLL mode.
DACL bit
DAC Lch
0dB
Figure 49. LOUT Mixing Circuit (AIN3 bit = â1â, LOVL bit = â0â)
RIN2 pin
RINR2 bit
0dB
RIN3 pin
RIN1 pin
MICR3 bit
M
RINR3 bit
0dB
I
ROUT pin
MIC-Amp Rch
X
*These blocks are not
available at PLL mode.
DACL bit
DAC Lch
0dB
Figure 50. ROUT Mixing Circuit (AIN3 bit = â1â, LOVL bit = â0â)
MS0477-E-01
- 56 -
2006/10
|
▷ |