AK4642VN Datasheet, PDF (31/82 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4642]
„ σΟδλϧHPF
AK4642͸DCΦϑηοτΩϟϯηϧ༻ͷHPFΛ಺ଂ͍ͯ͠·͢ɻHPFͷΧοτΦϑप೾਺͸0.9Hz (@fs=
44.1kHz)ʹͳ͓ͬͯΓɺαϯϓϦϯάप೾਺(fs)ʹൺྫ͠·͢ɻPMADL bit = “1” or PMADR bit = “1”ͷͱ͖ɺ
ADCͷHPF͸ONɺDACͷHPF͸OFFͰ͢ɻPMADL=PMADR bits = “0”, PMDAC bit = “1”ͷͱ͖ɺDACͷHPF
͸ONɺADCͷHPF͸OFFͰ͢ɻ
„ ϚΠΫʗϥΠϯೖྗηϨΫλ
AK4642͸ೖྗηϨΫλΛ಺ଂ͍ͯ͠·͢ɻMDIF1, MDIF2 bit = “0”ͷͱ͖ɺINL, INR bitʹΑΓɺLIN1/LIN2,
RIN1/RIN2ΛͦΕͧΕ੾Γସ͑Δ͜ͱ͕Ͱ͖·͢ɻMDIF1, MDIF2 bit = “1”ͷͱ͖ɺLIN1, RIN1, LIN2, RIN2 pin
͸ͦΕͧΕIN1−, IN1+, IN2+, IN2− pinͱͳΓɺࠩಈೖྗ͕ՄೳͰ͢(Figure 21)ɻ
MDIF1 bit
0
1
MDIF2 bit
0
1
0
1
INL bit
INR bit
Lch
0
0
LIN1
1
LIN1
1
0
LIN2
1
LIN2
0
x
LIN1
1
x
N/A
x
0
N/A
1
IN1+/−
x
x
IN1+/−
Table 15. MIC/Line In Path Select
Rch
RIN1
RIN2
RIN1
RIN2
IN2+/−
N/A
N/A
RIN2
IN2+/−
Default
AK4642
LIN1/IN1− pin
RIN1/IN1+ pin
INL bit
MDIF1 bit
ADC Lch
RIN2/IN2− pin
LIN2/IN2+ pin
INR bit
MDIF2 bit
ADC Rch
Figure 20. ϚΠΫʗϥΠϯೖྗηϨΫλ
MS0358-J-02
- 31 -
2005/04