
ASAHI KASEI
[AK4645]
MS0543-E-00
2006/09
- 15 -
Parameter
Audio Interface Timing (DSP Mode)
Master Mode
LRCK “
↑
” to BICK “
↑
” (Note 30)
LRCK “
↑
” to BICK “
↓
” (Note 31)
BICK “
↑
” to SDTO (BCKP bit = “0”)
BICK “
↓
” to SDTO (BCKP bit = “1”)
SDTI Hold Time
SDTI Setup Time
Slave Mode
LRCK “
↑
” to BICK “
↑
” (Note 30)
LRCK “
↑
” to BICK “
↓
” (Note 31)
BICK “
↑
” to LRCK “
↑
” (Note 30)
BICK “
↓
” to LRCK “
↑
” (Note 31)
BICK “
↑
” to SDTO (BCKP bit = “0”)
BICK “
↓
” to SDTO (BCKP bit = “1”)
SDTI Hold Time
SDTI Setup Time
Audio Interface Timing (Right/Left justified & I
2
S)
Master Mode
BICK “
↓
” to LRCK Edge (Note 30)
LRCK Edge to SDTO (MSB)
(Except I
2
S mode)
BICK “
↓
” to SDTO
SDTI Hold Time
SDTI Setup Time
Slave Mode
LRCK Edge to BICK “
↑
” (Note 31)
BICK “
↑
” to LRCK Edge (Note 32)
LRCK Edge to SDTO (MSB)
(Except I
2
S mode)
BICK “
↓
” to SDTO
SDTI Hold Time
SDTI Setup Time
Note 30. MSBS, BCKP bits = “00” or “11”.
Note 31. MSBS, BCKP bits = “01” or “10”.
Note 32. BICK rising edge must not occur at the same time as LRCK edge.
Symbol
min
typ
max
Units
tDBF
tDBF
tBSD
tBSD
tSDH
tSDS
0.5 x tBCK
40
0.5 x tBCK
40
70
70
50
50
0.5 x tBCK
0.5 x tBCK
-
-
-
-
0.5 x tBCK + 40
0.5 x tBCK + 40
70
70
-
-
ns
ns
ns
ns
ns
ns
tLRB
tLRB
tBLR
tBLR
tBSD
tBSD
tSDH
tSDS
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
-
-
50
50
-
-
-
-
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
80
80
-
-
tMBLR
tLRD
40
70
70
50
50
-
-
-
-
-
40
70
70
-
-
ns
ns
ns
ns
ns
tBSD
tSDH
tSDS
tLRB
tBLR
tLRD
tBSD
tSDH
tSDS
50
50
-
-
50
50
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
80
80
-
-