[AK4438]
Parameter
Symbol
Min.
Typ.
Max.
Unit
Audio Interface Timing
Stereo mode (TDM1-0 bits = “00”)
BICK Period
Normal Speed Mode
Double Speed Mode
Quad Speed Mode
Oct Speed Mode
tBCK
tBCK
tBCK
tBCK
tBCK
tBCKL
tBCKH
tLRB
tBLR
tSDH
tSDS
1/256fsn
1/128fsd
1/64fsq
1/64fso
ns
ns
ns
ns
ns
ns
ns
ns
ns
Hex Speed Mode
1/64fsh
BICK Pulse Width Low
BICK Pulse Width High
LRCK Edge to BICK “”
BICK “” to LRCK Edge
SDTI Hold Time
9
9
5
5
5
5
(Note 17)
(Note 17)
SDTI Setup Time
TDM128 mode (TDM1-0 bits = “01”)
BICK Period
Normal Speed Mode
Double Speed Mode
Quad Speed Mode
tBCK
tBCK
tBCK
tBCKL
tBCKH
tBLR
tLRB
tSDH
tSDS
1/128fsn
1/128fsd
1/128fsq
ns
ns
ns
ns
ns
ns
ns
ns
ns
BICK Pulse Width Low
BICK Pulse Width High
LRCK Edge to BICK “”
BICK “” to LRCK Edge
SDTI Hold Time
16
16
5
5
5
(Note 17)
(Note 17)
5
SDTI Setup Time
TDM256 mode (TDM1-0 bits = “10”)
BICK Period
Normal Speed Mode
Double Speed Mode
tBCK
tBCK
tBCKL
tBCKH
tBLR
tLRB
tSDH
tSDS
1/256fsn
1/256fsd
ns
ns
ns
ns
ns
ns
ns
ns
BICK Pulse Width Low
BICK Pulse Width High
LRCK Edge to BICK “”
BICK “” to LRCK Edge
SDTI Hold Time
16
16
5
5
5
(Note 17)
(Note 17)
5
SDTI Setup Time
TDM512 mode (TDM1-0 bits = “11”)
BICK Period
Normal Speed Mode
BICK Pulse Width Low
BICK Pulse Width High
LRCK Edge to BICK “”
BICK “” to LRCK Edge
SDTI Hold Time
tBCK
tBCKL
tBCKH
tBLR
tLRB
tSDH
tSDS
1/512fsn
ns
ns
ns
ns
ns
ns
ns
16
16
5
5
5
(Note 17)
(Note 17)
5
SDTI Setup Time
Note 17. BICK rising edge must not occur at the same time as LRCK edge.
016001925-E-00
2016/03
- 15 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
