AK4631 Datasheet, PDF (44/69 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK-AMP

ASAHI KASEI
[AK4631]
„ ৄࡉઆ໌


Addr Register Name
D7
D6
D5
D4
D3
D2
D1
D0
00H Power Management 1
0
PMVCM PMBP PMSPK PMAO PMDAC PMMIC PMADC
Default
0
0
0
0
0
0
0
0


PMADC: ADCͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
PMADC bitΛ“0”͔Β“1”ʹมߋ͢ΔͱɺॳظԽαΠΫϧ(1059/fs=133ms@fs=8kHz)͕։࢝͞Ε·͢ɻ
ظॳԽαΠΫϧऴྃޙɺADC͸σʔλΛग़ྗ͠·͢ɻ
PMMIC: ϚΠΫϒϩοΫ(MIC-Amp, ALC1)ͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
PMDAC: DACͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
PMAO: ϞϊϥϧϥΠϯग़ྗͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
PMSPK: εϐʔΧΞϯϓͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
PMBP: ϏʔϓೖྗͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
PMBP bit = “0”ͱͯ͠΋ɺBEEP ͔ΒεϐʔΧ΁ͷύε͕ͭͳ͕͍ͬͯ·͢ɻ͜ͷύεΛ੾ΔͨΊ
ʹ͸ɺBEEPS bit = “0”ͱͯ͠Լ͍͞ɻ·ͨɺBEEP͔ΒϞϊϥϧϥΠϯΞ΢τͷύε΋ಉ༷ʹɺBEEPA
bit = “0”ͱͯ͠Լ͍͞ɻ
PMVCM: VCOMͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
͜ͷΞυϨεͷϏοτΛON/OFF (“1”/“0”)͢Δ͜ͱͰ෦෼తʹύϫʔμ΢ϯ͢Δ͜ͱ͕Ͱ͖·͢ɻ·ͨɺ
PDN pinΛ“L”ʹ͢Δ͜ͱͰɺϨδελͷ಺༰ʹؔ܎ͳ͘ɺશճ࿏ΛҰ౓ʹύϫʔμ΢ϯ͢Δ͜ͱ͕Ͱ͖
·͢ɻ
·ͨɺΞυϨε00Hͱ PMPLLͱ MCKOͷશͯͷύϫʔϚωδϝϯτϏοτΛ“0”ʹ͢Δ͜ͱͰɺશճ࿏
ΛҰ౓ʹύϫʔμ΢ϯ͢Δ͜ͱ͕Ͱ͖·͢ɻ͜ͷͱ͖ɺIPGAͷઃఆϨδελ͸ॳظԽ͞Ε·͕͢ɺͦ
ΕҎ֎ͷϨδελͷ಺༰͸อ࣋͞Ε͍ͯ·͢ɻʢIPGA6-0 bitͷৄࡉઆ໌Λࢀরɻʣ
֤ϒϩοΫΛಈ࡞ͤ͞Δ৔߹͸ɺඞͣPMVCM bitΛ“1”ʹ͠ͳ͚Ε͹ͳΓ·ͤΜɻPMVCM bitʹରͯ͠
“0”Λॻ͖ࠐΉ͜ͱ͕Ͱ͖Δͷ͸ɺΞυϨε00Hͱ PMPLLͱ MCKOͷશͯͷύϫʔϚωδϝϯτϏοτ
Λ“0”ʹ͢Δ͚࣌ͩͰ͢ɻ
εϐʔΧΞϯϓ͔ΒBEEP৴߸Λग़ྗ͢ΔύεͷΈɺ͋Δ͍͸AOUT͔ΒBEEP৴߸Λग़ྗ͢ΔύεͷΈ
Λ࢖༻͢Δ৔߹ɺΫϩοΫΛ͢څڙΔඞཁ͸͋Γ·ͤΜɻADC, DAC, ALC1, ALC2ͷͲΕ͔ҰͭͰ΋࢖
༻͢Δ৔߹͸ΫϩοΫΛͯ͠څڙԼ͍͞ɻ
MS0317-J-01
- 44 -
2004/11