[AK4492]
Parameter
Symbol
Min.
Typ.
Max.
Unit
PCM Audio Interface Timing
Normal Mode (TDM[1:0] bits = “00”)
BICK Period
Normal Speed Mode
Double Speed Mode
Quad Speed Mode
Oct speed mode
Hex speed mode
tBCK
tBCK
tBCK
tBCK
tBCK
tBCKL
tBCKH
tBLR
1/256fsn
1/128fsd
1/64fsq
1/64fso
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
1/64fsh
BICK Pulse Width Low
BICK Pulse Width High
BICK “” to LRCK Edge
LRCK Edge to BICK “”
SDATA Hold Time
9
9
5
5
5
5
(Note 39)
(Note 39)
tLRB
tSDH
tSDS
SDATA Setup Time
TDM128 mode (TDM[1:0] 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
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
BICK Pulse Width Low
BICK Pulse Width High
BICK “” to LRCK Edge
LRCK Edge to BICK “”
SDATA Hold Time
14
14
14
14
5
(Note 39)
(Note 39)
5
SDATA Setup Time
TDM256 mode (TDM[1:0] bits = “10”)
BICK Period
Normal Speed Mode
tBCK
tBCK
tBCKL
tBCKH
tBLR
1/256fsn
1/256fsd
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
Double Speed Mode
BICK Pulse Width Low
BICK Pulse Width High
BICK “” to LRCK Edge
LRCK Edge to BICK “”
TDMO Setup time BICK “”
TDMO Hold time BICK “”
SDATA Hold Time
(Note 40)
14
14
14
14
5
5
5
5
(Note 39)
(Note 39)
tLRB
tBSS
tBSH
tSDH
tSDS
(Note 42)
SDATA Setup Time
TDM512 mode (TDM[1:0] bits = “11”)
BICK Period
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Normal Speed Mode
BICK Pulse Width Low
BICK Pulse Width High
BICK “” to LRCK Edge
LRCK Edge to BICK “”
TDMO Setup time BICK “”
TDMO Hold time BICK “”
SDATA Hold Time
(Note 41)
tBCK
tBCKL
tBCKH
tBLR
1/512fsn
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
14
14
14
14
5
5
5
5
(Note 39)
(Note 39)
tLRB
tBSS
tBSH
tSDH
tSDS
(Note 42)
SDATA Setup Time
Note 39. BICK rising edge must not occur at the same time as LRCK edge.
Note 40. Daisy Chain Mode, fsd (max) = 96 kHz if “TVDD < 3.0V”.
Note 41. Daisy Chain Mode, fsn (max) = 48 kHz if “TVDD < 3.0V”.
Note 42. LDOE pin = “L”, tBSH (min) = 4 nsec if “TVDD > 2.6V”.
016011073-E-00
2016/12
- 28 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
