AK4643 Datasheet, PDF (16/104 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP/RCV/SPK-AMP

ASAHI KASEI
[AK4643]
Parameter
Symbol
min
typ
max
Units
Audio Interface Timing (DSP Mode)
Master Mode
LRCK “↑” to BICK “↑” (Note 35)
tDBF 0.5 x tBCK − 40 0.5 x tBCK 0.5 x tBCK + 40 ns
LRCK “↑” to BICK “↓” (Note 36)
tDBF 0.5 x tBCK − 40 0.5 x tBCK 0.5 x tBCK + 40 ns
BICK “↑” to SDTO (BCKP bit = “0”)
tBSD
−70
-
70
ns
BICK “↓” to SDTO (BCKP bit = “1”)
tBSD
−70
-
70
ns
SDTI Hold Time
tSDH
50
-
-
ns
SDTI Setup Time
tSDS
50
-
-
ns
Slave Mode
LRCK “↑” to BICK “↑” (Note 35)
tLRB
0.4 x tBCK
-
-
ns
LRCK “↑” to BICK “↓” (Note 36)
tLRB
0.4 x tBCK
-
-
ns
BICK “↑” to LRCK “↑” (Note 35)
tBLR
0.4 x tBCK
-
-
ns
BICK “↓” to LRCK “↑” (Note 36)
tBLR
0.4 x tBCK
-
-
ns
BICK “↑” to SDTO (BCKP bit = “0”)
tBSD
-
-
80
ns
BICK “↓” to SDTO (BCKP bit = “1”)
tBSD
-
-
80
ns
SDTI Hold Time
tSDH
50
-
-
ns
SDTI Setup Time
tSDS
50
-
-
ns
Audio Interface Timing (Right/Left justified & I²S)
Master Mode
BICK “↓” to LRCK Edge (Note 35)
tMBLR
−40
-
40
ns
LRCK Edge to SDTO (MSB)
(Except I²S mode)
tLRD
−70
-
70
ns
BICK “↓” to SDTO
tBSD
−70
-
70
ns
SDTI Hold Time
tSDH
50
-
-
ns
SDTI Setup Time
tSDS
50
-
-
ns
Slave Mode
LRCK Edge to BICK “↑” (Note 36)
tLRB
50
-
-
ns
BICK “↑” to LRCK Edge (Note 37)
tBLR
50
-
-
ns
LRCK Edge to SDTO (MSB)
(Except I²S mode)
tLRD
-
-
80
ns
BICK “↓” to SDTO
tBSD
-
-
80
ns
SDTI Hold Time
tSDH
50
-
-
ns
SDTI Setup Time
tSDS
50
-
-
ns
Note 35. MSBS, BCKP bits = “00” or “11”.
Note 36. MSBS, BCKP bits = “01” or “10”.
Note 37. BICK rising edge must not occur at the same time as LRCK edge.
MS0476-E-01
- 16 -
2006/10