AK4612EQ Datasheet, PDF (33/68 Pages) Asahi Kasei Microsystems – 6/8-Channel Audio CODEC

[AK4612]
(2) TDM Mode
TDM1-0 bit = “01”ͱઃఆ͢Δ͜ͱʹΑΓTDM I/FϑΥʔϚοτΛ࢖༻Ͱ͖·͢ɻ5छྨͷσʔλϑΥʔϚοτ
͕ DIF2-0 bitͰબ୒Ͱ͖ɺશϞʔυͱ΋MSBϑΝʔετɺ2’sίϯϓϦϝϯτͷσʔλϑΥʔϚοτͰɺSDTO1/2
͸BICKͷ্ཱ͕ͪΓͰग़ྗ͞ΕɺSDTI1/2/3͸BICKͷ্ཱ͕ͪΓͰϥον͞Ε·͢ɻ
TDM512 Mode(fs=48kHz)͸TDM1-0 bit = “01”Ͱબ୒Ͱ͖·͢(Table 12)ɻ SDTO1 pin ʹ͸શADC(6ch)ͷσʔλ
͕ग़ྗ͞Ε·͢ɻSDTO2/3 pin = “L”Ͱ͢ɻSDTI1 pinʹ͸શDAC(8ch)ͷσʔλΛೖྗ͠·͢ɻSDTI2-4 pin΁ͷ
ೖྗσʔλ͸ແࢹ͞Ε·͢ɻBICK͸512fsݻఆɺLRCKͷ “H”෯ɺ “L”෯͸1/512fs(min)Ͱ͢ɻ
TDM256 Mode (fs=96kHz)͸ TDM1-0 bit = “10”Ͱબ୒Ͱ͖·͢(Table 13)ɻSDTO1 pin ʹ͸શADC(6ch)ͷσʔλ
͕ग़ྗ͞Ε·͢ɻSDTO2/3 pin = “L”Ͱ͢ɻSDTI1 pinʹ͸DAC(8ch: L1, R1, L2, R2, L3, R3, L4, R4)ͷશ8chͷσ
ʔλΛೖྗ͠·͢ɻSDTI2-4 pin΁ͷೖྗσʔλ͸ແࢹ͞Ε·͢ɻBICK͸256fsݻఆɺLRCKͷ “H”෯ɺ “L”෯
͸1/256fs(min)Ͱ͢ɻ
TDM128 Mode (fs=192kHz)͸ TDM1-0 bit = “11”Ͱબ୒Ͱ͖·͢(Table 14)ɻSDTO1 pin ʹ͸ADC(4ch: L1, R1, L2,
R2)ͷσʔλ͕ग़ྗ͞ΕɺSDTO2 pinʹ͸ADC(2ch: L3, R3)ͷσʔλ͕ग़ྗ͞Ε·͢ɻSDTO3 pin = “L”Ͱ͢ɻ
SDTI1 pinʹ͸DAC(4ch; L1, R1, L2, R2)ɺSDTI2 pinʹ͸DAC(4ch: L3, R3, L4, R4)ͷશ8chͷσʔλΛೖྗ͠·͢ɻ
SDTI3-4pin΁ͷೖྗσʔλ͸ແࢹ͞Ε·͢ɻBICK͸128fsݻఆɺLRCKͷ “H”෯ɺ “L”෯͸1/128fs(min)Ͱ͢ɻ
Mode M/S TDM1 TDM0 DIF2 DIF1 DIF0 SDTO1-3
10
0
0
11
0
0
12
0
0
13
0
0
14
0
0
15
1
0
16
1
0
17
1
0
18
1
0
19
1
0
1
0
0
0
24bit, Left
justified
1
0
0
1
24bit, Left
justified
1
0
1
0
24bit, Left
justified
1
0
1
1
24bit, Left
justified
1
1
0
0 24bit, I²S
1
0
0
0
24bit, Left
justified
1
0
0
1
24bit, Left
justified
1
0
1
0
24bit, Left
justified
1
0
1
1
24bit, Left
justified
1
1
0
0 24bit, I²S
SDTI1-4
16bit, Right
justified
20bit, Right
justified
24bit, Right
justified
24bit, Left
justified
24bit, I²S
16bit, Right
justified
20bit, Right
justified
24bit, Right
justified
24bit, Left
justified
24bit, I²S
LRCK
I/O
↑
I
↑
I
↑
I
↑
I
↓
I
↑
O
↑
O
↑
O
↑
O
↓
O
BICK
I/O
512fs I
512fs I
512fs I
512fs I
512fs I
512fs O
512fs O
512fs O
512fs O
512fs O
Table 12. ΦʔσΟΦσʔλϑΥʔϚοτ (TDM512 mode)
MS1039-J-01
- 33 -
2009/06