AK4645EN Datasheet, PDF (71/96 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4645]
„ ৄࡉઆ໌
Addr
00H
Register Name
Power Management 1
Default
D7
D6
D5
D4
0
PMVCM PMMIN
0
0
0
0
0
D3
D2
D1
D0
PMLO PMDAC
0
PMADL
0
0
0
0
PMADL: MIC-Amp Lch, ADC LchͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
PMADL·ͨ͸PMADR bitΛ “0”͔Β “1”ʹมߋ͢ΔͱɺॳظԽαΠΫϧ(1059/fs=24ms@44.1kHz)͕
։࢝͞Ε·͢ɻॳظԽαΠΫϧऴྃޙɺADC͸σʔλΛग़ྗ͠·͢ɻ
PMDAC: DACͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
PMLO: εςϨΦϥΠϯग़ྗͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
PMMIN: ϞϊϥϧೖྗͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
࠶ੜύεΛ࢖༻࣌͸PMMIN or PMAINL3 bit = “1”ͱͯ͠Լ͍͞ɻ
PMVCM: VCOMͷύϫʔϚωδϝϯτ
0: Power down (Default)
1: Power up
֤ϒϩοΫΛಈ࡞ͤ͞Δ৔߹͸ɺඞͣPMVCM bitΛ“1”ʹ͠ͳ͚Ε͹ͳΓ·ͤΜɻPMVCM bitʹର
ͯ͠“0”Λॻ͖ࠐΉ͜ͱ͕Ͱ͖Δͷ͸ɺΞυϨε00H, 01H, 02H, 10H, 20HͷશͯͷύϫʔϚωδϝ
ϯτϏοτͱMCKO bitΛ“0”ʹ͢Δ͚࣌ͩͰ͢ɻ
͜ͷΞυϨεͷϏοτΛON/OFF (“1”/“0”)͢Δ͜ͱͰ෦෼తʹύϫʔμ΢ϯ͢Δ͜ͱ͕Ͱ͖·͢ɻ·ͨɺ
PDN pinΛ“L”ʹ͢Δ͜ͱͰɺϨδελͷ಺༰ʹؔ܎ͳ͘ɺશճ࿏ΛҰ౓ʹύϫʔμ΢ϯ͢Δ͜ͱ͕Ͱ͖·
͢ɻ͜ͷͱ͖Ϩδελ஋͸ॳظԽ͞Ε·͢ɻ
·ͨɺΞυϨε00H, 01H, 02H, 10H, 20HͷશͯͷύϫʔϚωδϝϯτϏοτͱMCKO bitΛ“0”ʹ͢Δ͜ͱ
Ͱɺશճ࿏ΛҰ౓ʹύϫʔμ΢ϯ͢Δ͜ͱ͕Ͱ͖·͢ɻ͜ͷͱ͖Ϩδελͷ಺༰͸อ࣋͞Ε͍ͯ·͢ɻফ
අిྲྀ͸20µA(typ)ͳͷͰɺ׬શʹγϟοτμ΢ϯ(typ. 1µA)͢Δʹ͸PDN pin = “L”ͱͯ͠Լ͍͞ɻ
ADCͱDACΛ࢖༻͠ͳ͍৔߹ɺΫϩοΫΛ͢څڙΔඞཁ͸͋Γ·ͤΜɻADC·ͨ͸DACͷͲΕ͔ҰͭͰ
΋࢖༻͢Δ৔߹͸ΫϩοΫΛͯ͠څڙԼ͍͞ɻ
MS0543-J-00
- 71 -
2006/09