AK4386ET Datasheet, PDF (13/18 Pages) Asahi Kasei Microsystems – 100dB 96kHz 24-Bit 2ch ΔΣ DAC

[AK4386]
(2) MCLKఀࢭʹΑΔύϫʔηʔϒ (PDN pin = “H”)
PDN pin
(1)
Internal
State
Power-down
Normal Operation
D/A In
(Digital)
D/A Out
(Analog)
Power-down
Hi-Z
(4)
GD (2)
Clock In
MCLK, BICK, LRCK
Power-save
Normal Operation
(3)
(4)
VCOM
(4)
GD (2)
(5) MCLK Stop
External
MUTE
(5)
(6)
(6)
Notes:
(1) ݯి౤ೖޙɺ19msҎ্ͷؒɺPDN pinΛ“L”ʹͯ͠Լ͍͞ɻ(VCOM pinͱVSSؒʹ4.7μFͷίϯσϯαΛ
͚ͭͨ৔߹ɻ)
(2) σΟδλϧೖྗʹରͯ͠Ξφϩάग़ྗ͸܈஗Ԇ(GD)Λ࣋ͪ·͢ɻ
(3) σΟδλϧσʔλͷೖྗΛࢭΊΔ͜ͱ͕Ͱ͖·͢ɻ͜ͷ۠ؒʹ“0”σʔλΛೖྗ͓ͯ͘͜͠ͱͰɺ
MCLK࠶ೖྗޙͷϘπԻΛܰ͢·͖Ͱݮɻ
(4) PDN pinͷΤοδ(“↑”)ͼٴMCLKͷೖྗ/ఀࢭ͔Β3 ∼ 4LRCKҎ಺ʹΫϦοΫϊΠζ͕ग़ྗ͞Ε·͢ɻ͜
ͷϊΠζ͸σʔλ͕“0”ͷ৔߹Ͱ΋ग़ྗ͞Ε·͢ɻ
(5) ύϫʔηʔϒঢ়ଶ(MCLKఀࢭ)Ͱ͸֤ΫϩοΫೖྗ(BICK, LRCK)ΛࢭΊΔ͜ͱ͕Ͱ͖·͢ɻ
(6) ΫϦοΫϊΠζ(4)͕໰୊ʹͳΔ৔߹͸ɺΞφϩάग़ྗΛ֎෦Ͱϛϡʔτͯ͠Լ͍͞ɻ
Figure 6. Power-down/up sequence example 2
MS0280-J-01
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2008/10