AK4589 Datasheet, PDF (46/76 Pages) Asahi Kasei Microsystems – 2/8 CHANNEL AUDIO CODEC WITH DIR

ASAHI KASEI
[AK4589]
σΟΤϯϑΝγεϑΟϧλίϯτϩʔϧ
IIRϑΟϧλʹΑΔ4प೾਺ (32kHz, 44.1kHz, 48kHz, 96kHz)ରԠͷσΟΤϯϑΝγεϑΟϧλ (50/15µsಛੑ)Λ
಺ଂ͍ͯ͠·͢ɻDEAU bit = “1”ͷͱ͖ɺFS3-0 bitͱϓϦΤϯϑΝγεͷ৘ใ͔ΒࣗಈతʹσΟΤϯϑΝγε
ϑΟϧλΛΠωʔϒϧ͠·͢ɻϦηοτ࣌͸͜ͷϞʔυͰ͢ɻγϦΞϧίϯτϩʔϧϞʔυ࣌ɺDEAU bit = “0”
ʹ͢ΔͱDEM0/1, DFS bitͰσΟΤϯϑΝγεϑΟϧλΛίϯτϩʔϧͰ͖·͢ɻσΟΤϯϑΝγεOFF࣌͸಺
෦ͷσΟΤϯϑΝγεϑΟϧλ͸όΠύε͞ΕɺϦΧόϦ͞Εͨσʔλͷ··ग़ྗ͞Ε·͢ɻ·ͨɺPEM bit =
“0”࣌͸ৗʹόΠύε͞Ε·͢ɻ
PEM
1
1
1
1
1
0
FS3
FS2
FS1
FS0
Mode
0
0
0
0
44.1kHz
0
0
1
0
48kHz
0
0
1
1
32kHz
1
0
1
0
96kHz
(Others)
OFF
x
x
x
x
OFF
Table 23. σΟΤϯϑΝγεΦʔτίϯτϩʔϧ(DEAU bit = “1”: Default)
PEM
DFS
DEM1
DEM0
Mode
1
0
0
0
44.1kHz
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
OFF
48kHz
32kHz
OFF
OFF
1
1
1
0
1
1
1
1
0
x
x
x
96kHz
OFF
OFF
Table 24. σΟΤϯϑΝγεϚχϡΞϧίϯτϩʔϧ(DEAU bit = “0”)
Default
Ϧηοτͱύϫʔμ΢ϯ
AK4589͸ɺPDN pinʹΑΔճ࿏શମͷύϫʔμ΢ϯͱɺPWN bitʹΑΔҰ෦ύϫʔμ΢ϯɺRSTN bitʹΑΔϨ
δελͷॳظԽͼٴλΠϛϯάͷϦηοτ͕ՄೳͰ͢ɻి্ཱ࣌͛ͪݯ͸ඞͣPDN pinʹҰ౓ “L”Λೖྗͯ͠
Ϧηοτͯ͠Լ͍͞ɻ
PDN pin:
“L”ʹ͢ΔͱΞφϩάɺσΟδλϧશͯͷճ࿏͸ύϫʔμ΢ϯͼٴϦηοτঢ়ଶʹͳΓ·͢ɻશͯͷ
Ϩδελ͸ॳظԽ͞ΕɺΫϩοΫ΋ఀࢭ͠·͢ɻ·ͨɺϨδελͷϦʔυʗϥΠτ͸Ͱ͖·ͤΜɻ
PDN pin͸ADC/DAC෦ͱڞ௨Ͱ͢ɻ
RSTN bit (ΞυϨε00HͷD0):
“0”ͷͱ͖PWN bitͱRSTN bitҎ֎ͷϨδελΛॳظԽ͠·͢ɻσʔλॲཧܥͷλΠϛϯά΋ॳظԽ͞
Ε·͢ɻ “0”ͷؒɺΫϩοΫ͸ग़ྗ͞Ε·͕͢SDTO2 pin͸ “L”Ͱ͢ɻ·ͨɺPWN bitͱRSTN bitҎ֎
ͷϨδελͷϥΠτ͸Ͱ͖·ͤΜɻϦʔυ͸ՄೳͰ͢ɻ
PWN bit (ΞυϨε00HͷD1):
“0”ͷͱ͖ΫϩοΫϦΧόϦճ࿏Λύϫʔμ΢ϯɾॳظԽ͠·͢ɻ͜ΕʹΑͬͯPLL͔ΒͷϚελΫ
ϩοΫ͸͞څڙΕͳ͘ͳΓ·͢ɻX’talϞʔυͷ৔߹ʹ͸ΫϩοΫ͸ग़ྗ͞Ε·͢ɻϨδελͷ஋͸
ظॳԽ͞Ε·ͤΜͷͰϞʔυઃఆ౳͸อ࣋͞Ε·͢ɻ·ͨɺϨδελ΁ͷϦʔυʗϥΠτ͸ՄೳͰ
͢ɻ
MS0339-J-00
- 46 -
2004/09