AK4645EN Datasheet, PDF (82/96 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4645]
γεςϜઃܭ
Figure 73͓ΑͼFigure 74͸γεςϜ઀ଓྫͰ͢ɻ۩ମతͳճ࿏ͱଌఆྫʹ͍ͭͯ͸ධՁϘʔυ(AKD4645)Λ
ࢀরͯ͠Լ͍͞ɻ
Power Supply ^10u
2.6 ∼ 3.6V
Headphone
Power Supply
1.6 ∼ 3.6V
10 0.22u
10 0.22u
1u
Line In
Speaker
Mono In
External MIC
Internal MIC
External
SPK-Amp
0.1u
25 LIN4
TVDD 16
26 ROUT
DVDD 15
0.1u
27 LOUT
BICK 14
28 MIN
AK4645EN
LRCK 13
DSP
29 RIN2
Top View
SDTO 12
30 LIN2
SDTI 11
31 LIN1
CDTI 10
32 RIN1
CCLK 9
µP
Cp
Analog Ground Digital Ground
஫:
- AK4645ͷAVSS, HVSSͱपลίϯτϩʔϥ౳ͷάϥϯυ͸෼͚ͯ഑ઢͯ͠Լ͍͞ɻ
- σΟδλϧೖྗϐϯ͸Φʔϓϯʹ͠ͳ͍ͰԼ͍͞ɻ
- EXTϞʔυ(PMPLL bit = “0”) ͷ৔߹ɺVCOC pin͸ΦʔϓϯͰߏ͍·ͤΜɻ
- PLLϞʔυ(PMPLL bit = “1”) ͷ৔߹ɺCpͱRp͸Table 5ͷΑ͏ʹͯ͠Լ͍͞ɻ
- ϚελϞʔυͰ࢖༻͢Δ৔߹ɺM/S bitʹ “1”͕ॻ͖ࠐ·ΕΔ·ͰɺAK4645ͷLRCK, BICK pin͸ϑ
ϩʔςΟϯάͷঢ়ଶͰ͢ɻͦͷͨΊɺAK4645ͷLRCK, BICK pinʹ100kΩఔ౓ͷϓϧΞοϓ͋Δ
͍͸ϓϧμ΢ϯ఍߅ΛೖΕΔඞཁ͕͋Γ·͢ɻ
Figure 73. γεςϜ઀ଓਤ(AIN3 bit = “0”, ϚΠΫೖྗ࣌)
MS0543-J-00
- 82 -
2006/09