ak4644 AKM Semiconductor, Inc., ak4644 Datasheet - Page 14

• Manufacturer Part Number: ak4644
• Description: Stereo Codec With Mic/hp/rcv-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Parameter
Audio Interface Timing (DSP Mode)
Audio Interface Timing (Right/Left justified & I
Note 28. MSBS, BCKP bits = “00” or “11”.
Note 29. MSBS, BCKP bits = “01” or “10”.
Note 30. BICK rising edge must not occur at the same time as LRCK edge.
MS0477-E-01
Master Mode
Slave Mode
Master Mode
Slave Mode
LRCK “↑” to BICK “↑” (Note 28)
LRCK “↑” to BICK “↓” (Note 29)
BICK “↑” to SDTO (BCKP bit = “0”)
BICK “↓” to SDTO (BCKP bit = “1”)
SDTI Hold Time
SDTI Setup Time
LRCK “↑” to BICK “↑” (Note 28)
LRCK “↑” to BICK “↓” (Note 29)
BICK “↑” to LRCK “↑” (Note 28)
BICK “↓” to LRCK “↑” (Note 29)
BICK “↑” to SDTO (BCKP bit = “0”)
BICK “↓” to SDTO (BCKP bit = “1”)
SDTI Hold Time
SDTI Setup Time
BICK “↓” to LRCK Edge (Note 28)
LRCK Edge to SDTO (MSB)
BICK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
LRCK Edge to BICK “↑” (Note 29)
BICK “↑” to LRCK Edge (Note 30)
LRCK Edge to SDTO (MSB)
BICK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
(Except I
(Except I
2
2
S mode)
S mode)
Symbol
2
tMBLR
S)
tDBF
tDBF
tBSD
tBSD
tSDH
tLRB
tLRB
tBLR
tBLR
tBSD
tBSD
tSDH
tLRD
tBSD
tSDH
tLRB
tBLR
tLRD
tBSD
tSDH
tSDS
tSDS
tSDS
tSDS
- 14 -
0.5 x tBCK − 40
0.5 x tBCK − 40
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
min
−70
−70
−40
−70
−70
50
50
50
50
50
50
50
50
50
50
-
-
-
-
0.5 x tBCK
0.5 x tBCK
typ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.5 x tBCK + 40
0.5 x tBCK + 40
max
80
80
80
70
70
40
70
70
80
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[AK4644]
2006/10
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns