AK4645AEZ Datasheet, PDF (22/85 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

[AK4645A]
ػೳઆ໌
■ γεςϜΫϩοΫ
֎෦ͱͷI/FϞʔυ͸ҎԼͷ2௨Γͷํ๏͕͋Γ·͢ɻ(Table 2 and Table 3.)
Mode
M/S bit
EXT Slave Mode
0
EXT Master Mode
1
Table 2. Clock Mode Setting (x: Don’t care)
Mode
EXT Slave Mode
EXT Master Mode
MCKI pin
BICK pin
FS1-0 bitsͰબ୒
Input
(≥ 32fs)
FS1-0 bitsͰબ୒
Output
(BCKO bitͰબ୒)
Table 3. Clock pins state in Clock Mode
Figure
Figure 16
Figure 17
LRCK pin
Input
(1fs)
Output
(1fs)
■ ϚελϞʔυͱεϨʔϒϞʔυͷ੾Γସ͑
ϚελϞʔυͱεϨʔϒϞʔυͷ੾Γସ͑͸M/S bitͰߦ͍·͢ɻ“1”ͰϚελϞʔυɺ“0”ͰεϨʔϒϞʔυ
Ͱ͢ɻAK4645A͸ύϫʔμ΢ϯ࣌ (PDN pin = “L”)ɺͼٴύϫʔμ΢ϯղআޙ͸εϨʔϒϞʔυͰ͢ɻύϫʔ
μ΢ϯղআޙɺM/S bitΛ “1”ʹมߋ͢Δ͜ͱͰϚελϞʔυʹͳΓ·͢ɻ
ϚελϞʔυͰ࢖༻͢Δ৔߹ɺM/S bitʹ “1”͕ॻ͖ࠐ·ΕΔ·ͰɺAK4645AͷLRCK, BICK pin͸ϑϩʔςΟ
ϯάͷঢ়ଶͰ͢ɻͦͷͨΊɺAK4645AͷLRCK, BICK pinʹ100kΩఔ౓ͷϓϧΞοϓ͋Δ͍͸ϓϧμ΢ϯ఍߅
ΛೖΕΔඞཁ͕͋Γ·͢ɻ
M/S bit
Mode
0
Slave Mode
1
Master Mode
Table 4. Select Master/Slave Mode
(default)
MS0986-J-00
- 22 -
2008/07