AK4612EQ Datasheet, PDF (47/68 Pages) Asahi Kasei Microsystems – 6/8-Channel Audio CODEC

[AK4612]
■Ϧηοτػೳ
RSTN = “0”ͷͱ͖ADC͸Ξφϩά෦ͱσΟδλϧ෦͕ύϫʔμ΢ϯɺDAC͸σΟδλϧ෦͕ύϫʔμ΢ϯ͠
·͕͢Ϩδελ஋͸ॳظԽ͞Ε·ͤΜɻ͜ͷͱ͖DZF1-2 pin͸ “H” ɺSDTO1-3 pin͸ “L” ʹͳΓɺΞφϩάग़
ྗ͸DVMPD pinͷઃఆʹؔΘΒͣVCOMిѹͳΓ·͢ɻ͜ͷ࣌ҟԻ͕ੜ͡ΔͷͰɺ໰୊ʹͳΔ৔߹͸֎෦Ͱ
ϛϡʔτͯ͠Լ͍͞ɻFigure 46ʹRSTN bitʹΑΔϦηοτγʔέϯεΛࣔ͠·͢ɻ
RSTN bit
Internal
RSTN bit
ADC Internal
State
DAC Internal
State
ADC In
(Analog)
ADC Out
(Digital)
DAC In
(Digital)
DAC Out
(Analog)
Normal Operation
4~5/fs (8)
Power-down
3~4/fs (9)
518/fs ⁽¹⁾
Init Cycle
Normal Operation
Normal Operation
Digital Block Power-down
GD ⁽²⁾
Normal Operation
GD
(3)
“0”data
“0”data
(2)
GD
(6) (5)
(6)
(4)
GD
Clock In
MCLK,LRCK,SCLK
Don’t care
8∼9/fs (7)
DZF1/DZF2
஫ɿ
(1) ADC͸ύϫʔμ΢ϯղআޙɺΞφϩά෦͕ॳظԽ͞Ε·͢ɻ
(2) Ξφϩάೖྗʹର͢ΔσΟδλϧग़ྗɺσΟδλϧೖྗʹର͢ΔΞφϩάग़ྗ͸܈஗Ԇ(GD)Λ΋ͪ·
͢ɻ
(3) ύϫʔμ΢ϯ࣌ADCग़ྗ͸ “0” σʔλͰ͢ɻ
(4) Ξφϩά෦ͷॳظԽऴྃ࣌ADCग़ྗʹҟԻ͕ग़ྗ͞Ε·͢ɻҟԻ͕໰୊ʹͳΔ৔߹͸σΟδλϧग़ྗΛ
ϛϡʔτͯ͠Լ͍͞ɻ
(5) RSTN= “0”ͷ࣌ɺΞφϩάग़ྗ͸DVMPD pinͷઃఆʹؔΘΒͣVCOMిѹͰ͢ɻ
(6) RSTN bit͕ “0” ʹͳ͔ͬͯΒ4∼5/fsޙɺͼٴRSTN bit͕ “1” ʹͳ͔ͬͯΒ3∼4/fsʹޙҟԻ͕ग़ྗ͞Ε·͢ɻ
(7) DZF1-2 pin͸RSTN bit͕ “0” ʹͳΔͱ “H” ʹͳΓɺRSTN bit͕ “1” ʹͳ͔ͬͯΒ8~9/fs ޙ“L” ʹͳΓ·͢ɻ
(8) RSTN bitʹ “0”Λॻ͖ࠐΜͰ͔ΒLSI಺෦ͷRSTN bit͕มԽ͢Δ·Ͱ4~5/fs ͔͔Γ·͢ɻ
(9) RSTN bitʹ “1”Λॻ͖ࠐΜͰ͔ΒॳظԽαΠΫϧ͕։࢝͢Δ·Ͱ3∼4/fs͔͔Γ·͢ɻ
Figure 46. Ϧηοτγʔέϯεྫ
MS1039-J-01
- 47 -
2009/06