AK4368 Datasheet, PDF (36/58 Pages) Asahi Kasei Microsystems – PLL & HP-AMP DAC

ASAHI KASEI
[AK4368]
3) LIN/RIN/MIN → HP-Amp, Lineout
Power Supply
PDN pin
PMVCM bit
(1) >150ns
(2) >0
LINHL, MINHL, RINHR, MINHR
LINL, RINR, MINL, MINR bits
(3) >0
Don’t care
3D1-0 bits
(when 3D is used) ^{“00” (3D OFF)}
PMHPL/R bits
(5) >0
“01”, “10” or “11” (3D ON)
“00”
(6) >2ms(at 3D OFF), >50ms(at 3D ON)
“01”, “10” or “11”
(6) >2ms or >50ms
MUTEN bit
PMLO bit
LIN/RIN/MIN pins
HPL/R pins
(4)
(Hi-Z)
(7)
(Hi-Z)
(8)
(7)
LMUTE,
ATTM3-0 bits
10H(MUTE)
0FH(0dB)
MOUT pin
(Hi-Z)
(9)
(9)
(9)
(Hi-Z)
Figure 28. LIN/RIN/MIN, HP-amp͓ΑͼLOUT/ROUTͷύϫʔΞοϓʗμ΢ϯγʔέϯε
(Don’t care: Hi-ZΛআ͘)
(1) ޙ্ཱ͛ͪݯిɺ150nsҎ্͔ͯͬܦΒPDN pinΛ “H”ʹͯ͠Լ͍͞ɻDACΛ࢖༻͠ͳ͍৔߹ɺ֤Ϋϩο
Ϋ(MCLK, BICK, LRCK)͸ෆཁͰ͢ɻ
(2) PDN pinΛ “H”ʹ͔ͯ͠ΒPMVCM bitʹ “1”Λॻ͖ࠐΜͰԼ͍͞ɻ
(3) PMVCM bitʹ “1”Λॻ͖ࠐΜͰ͔ΒLINHL, MINHL, RINHR, MINHR, LINL, MINL, RINR, MINR bitsʹ “1”
Λॻ͖ࠐΜͰԼ͍͞ɻ
(4) LINHL, MINHL, RINHR, MINHR, LINL, MINL, RINR, MINR bitsʹ “1”Λॻ͖ࠐΉͱLIN, RIN, MINͷ֤pin
͸0.475 x AVDDʹόΠΞε͞Ε·͢ɻ
(5) 3DػೳΛ࢖༻͢Δͱ͖͸ɺLINHL, MINHL, RINHR, MINHR, LINL, MINL, RINR, MINR bitsʹ “1”Λॻ͖ࠐ
ΜͰ͔Β3D1-0bitsʹ“01”, “10”·ͨ͸“11”Λॻ͖ࠐΜͰ͍ͩ͘͞ɻ(Refer to Table 25)
(6) 3DػೳΛ࢖༻͠ͳ͍৔߹͸ɺLINHL, MINHL, RINHR, MINHR, LINL, MINL, RINR, MINR bitsʹ “1”Λॻ͖
ࠐΜͰ2msҎ্(VCOM pinͷίϯσϯα2.2µFͷ৔߹)͔ͯͬܦΒPMHPL, PMHPR, MUTEN, PMLO bitsʹ
“1”Λॻ͖ࠐΜͰԼ͍͞ɻ3DػೳΛ࢖༻͢Δ৔߹ɺ3D1-0bitsʹ“01”, “10”·ͨ͸“11”Λॻ͖ࠐΜͰ50msҎ
͔ͯͬܦ্ΒPMHPL, PMHPR, MUTEN, PMLO bitsʹ “1”Λॻ͖ࠐΜͰԼ͍͞ɻ
(7) ϔουϑΥϯΞϯϓͷ্ཱ͕ͪΓ࣌ؒ͸MUTET pinͷίϯσϯα(C)Ͱܾ·ΓɺVCOM/2·Ͱͷ্ཱ͕ͪ
Γ࣌ؒ(t_r)͸70k x C(typ)Ͱ͢ɻC=1µFͷ৔߹ɺt_r͸70ms(typ)Ͱ͢ɻ
(8) ϔουϑΥϯΞϯϓͷཱͪԼ͕Γ࣌ؒ͸MUTET pinͷίϯσϯα(C)Ͱܾ·ΓɺVCOM/2·ͰͷཱͪԼ͕
Γ࣌ؒ(t_f)͸60k x C(typ)Ͱ͢ɻC=1µFͷ৔߹ɺt_f͸60ms(typ)Ͱ͢ɻ
ϔουϑΥϯΞϯϓ͕׬શʹཱͪԼ͕͔ͬͯΒPMHPL, PMHPR bitsʹ “0”Λॻ͖ࠐΈɺͦͷޙLINHL,
MINHL, RINHR, MINHR, LINL, MINL, RINR, MINR bitsʹ “0”Λॻ͖ࠐΜͰԼ͍͞ɻ
(9) PMLO bitΛ੾Γସ͑ΔͱLOUT, ROUT pinsʹϙοϓϊΠζ͕ग़ྗ͞Ε·͢ɻ
MS0409-J-01
- 36 -
2005/08