AK4343VN Datasheet, PDF (91/99 Pages) Asahi Kasei Microsystems – Stereo DAC with HP/RCV/SPK-AMP

[AK4343]
■ ϔουϑΥϯग़ྗ
FS3-0 bits _0,000
(Addr:05H, D5&D2-0)
DACH bit
(Addr:0FH, D0)
(1)
(2)
1,111
(13)
Example:
PLL, Master Mode
Audio I/F Format :MSB justified (ADC & DAC)
Sampling Frequency: 44.1kHz
Digital Volume: −8dB
Bass Boost Level : Midddle
(1) Addr:05H, Data:27H
BST1-0 bits
(Addr:0EH, D3-2)
IVL/R7-0 bits
(Addr:09H&0CH, D7-0)
DVL/R7-0 bits
(Addr:0AH&0DH, D7-0)
PMDAC bit
(Addr:00H, D2)
PMMIN bit
(Addr:00H, D5)
00
E1H
(3)
(4)
18H
(5)
(6)
10
91H
28H
00
(12)
(11)
(2) Addr:0FH, Data:09H
(3) Addr:0EH, Data:19H
(4) Addr:09H&0CH, Data:91H
(5) Addr:0AH&0DH, Data:28H
(6) Addr:00H, Data:64H
(7) Addr:01H, Data:39H
(8) Addr:01H, Data:79H
Playback
PMHPL/R bits
(Addr:01H, D5-4)
HPMTN bit
(Addr:01H, D6)
(7)
(10)
(9) Addr:01H, Data:39H
(10) Addr:01H, Data:09H
(8)
(9)
(11) Addr:00H, Data:40H
HPL/R pins
Normal Output
(12) Addr:0EH, Data:11H
(13) Addr:0FH, Data:08H
Figure 81. Headphone-Amp Output Sequence
<खॱྫ>
ʮΫϩοΫͷઃఆʯͷ߲Λࢀর͠ɺΫϩοΫΛͯ͠څڙԼ͍͞ɻ
(1) αϯϓϦϯάप೾਺(FS3-0 bits)Λઃఆͯ͠Լ͍͞ɻPLLϞʔυͷ৔߹ɺαϯϓϦϯάप೾਺Λมߋ͠
͔ͯΒͷPLLϩοΫ࣌ؒΛߟྀ͠ɺ(5)ͷDACͼٴεϐʔΧͷύϫʔΞοϓΛߦͬͯԼ͍͞ɻ
(2) DAC Æ HP-Ampͷύεઃఆ: DACH bit = “0” → “1”
(3) όεϒʔετϨϕϧ(BST1-0 bits)ͷઃఆɻ
(4) ALC෦σΟδλϧϘϦϡʔϜ(ΞυϨε09H&0CH)ͷઃఆ
AVL7-0 = AVR7-0 bits = “91H”(0dB)ʹઃఆͯ͠Լ͍͞ɻ
(5) ग़ྗσΟδλϧϘϦϡʔϜ(ΞυϨε0AH&0DH)ͷઃఆɻ
DVOLC bit = “1”(default)ͷͱ͖ɺDVL7-0bits(0AH)ͰLch͓ΑͼRchͷ྆ํͷϘϦϡʔϜΛઃఆ͠·
͢ɻDAC͕ύϫʔΞοϓ͞ΕͨޙɺDefault஋(0dB)͔Βઃఆͨ͠஋ʹιϑτભҠ͍͖ͯ͠·͢ɻ
(6) DAC͓ΑͼMIN-AmpͷύϫʔΞοϓ: PMDAC = PMMIN bits = “0” → “1”
ظॳԽαΠΫϧத(1059/fs=24ms@fs=44.1kHz)ɺDACೖྗσʔλ͸಺෦Ͱ2’sίϯϓϦϝϯτͷ “0”ʹ
ݻఆ͞Ε·͢ɻॳظԽαΠΫϧ͕ऴྃ͢ΔͱɺDACͷ܈஗Ԇ(25/fs=0.5ms@fs=44.1kHz)ܦաޙɺDAC
ग़ྗ͸σΟδλϧೖྗ৴߸ʹ૬౰͢ΔిѹʹͳΓ·͢ɻALC bit = “1”ͷ৔߹ɺॳظԽαΠΫϧத
(1059/fs = 24ms @fs=44.1kHz)ɺALC͸σΟηʔϒϧঢ়ଶ(ALCͷήΠϯ͸AVL/R7-0 bitsͷઃఆ)Ͱɺ
ظॳԽαΠΫϧ͕ऴྃ͢ΔͱALC͸AVL/R7-0 bitsͷઃఆ͔Βಈ࡞Λ։࢝͠·͢ɻ
(7) ϔουϑΥϯΞϯϓͷύϫʔΞοϓ: PMHPL = PMHPR bits = “0” → “1”
ग़ྗ͸HVSSͷ··Ͱ͢ɻ
(8) ϔουϑΥϯΞϯϓͷίϞϯిѹ্ཱͪ͛: HPMTN bit = “0” → “1”
্ཱͪ͛࣌ؒ͸MUTET pinͷίϯσϯαͷ༰ྔͱHVDDͰܾ·Γ·͢ɻMUTET pinͷίϯσϯαC
= 1μF, HVDD=3.3Vͷ࣌ͷ࣌ఆ਺͸τr =100ms(typ), 250ms(max)Ͱ͢ɻ
(9) ϔουϑΥϯΞϯϓͷίϞϯిѹཱͪԼ͛: HPMTN bit = “1” → “0”
্ཱͪ͛࣌ؒ͸MUTET pinͷίϯσϯαͷ༰ྔͱHVDDͰܾ·Γ·͢ɻMUTET pinͷίϯσϯαC
= 1μF, HVDD=3.3Vͷ࣌ͷ࣌ఆ਺͸τf =100ms(typ), 250ms(max)Ͱ͢ɻ
ίϞϯిѹ͕HVSS΁Լ͕ΔલʹిݯΛΦϑ͢Δ͔ɺ·ͨ͸ɺϔουϑΥϯΞϯϓΛύϫʔμ΢ϯ
ͨ͠৔߹ɺϙοϓԻ͕ൃੜ͠·͢ɻίϞϯిѹ͕HVSS΁Լ͕Δ·Ͱͷ࣌ؒ͸࣌ఆ਺ͷ2ഒͷ࣌ؒ
Ͱ͢ɻ
(10) ϔουϑΥϯΞϯϓͷύϫʔμ΢ϯ: PMHPL = PMHPR bits = “1” → “0”
(11) DAC͓ΑͼMIN-Ampͷύϫʔμ΢ϯ: PMDAC = PMMIN bits = “1” → “0”
(12) όεϒʔετͷOFF: BST1-0 bits = “00”
(13) DAC Æ HP-AmpͷύεͷDisable: DACH bit = “1” → “0”
MS0478-J-02
- 91 -
2010/11