AK4618 Datasheet, PDF (15/60 Pages) Asahi Kasei Microsystems – 192kHz 24-bit 6ch/12ch Audio CODEC with Microphone Interface

[AK4618]
TDM128 mode
(Note 14)
(TDM1-0 bits = “11”)
LRCK frequency
fsq
128
192
kHz
“H” time
(Note 15) tLRH
1/4fs
ns
Note 12. Please use for Normal Speed mode. Master clock should be input the 512fs in Master mode.
Note 13. Please use for Normal Speed mode, Double Speed mode. Master clock should be input the 256fs or 512fs in
Master mode.
Note 14. Please use for Quad Speed mode. Master clock should be input the 128fs in Master mode.
Note 15. If the format is I²S, it is “L” time.
Parameter
Audio Interface Timing (Slave mode)
Stereo mode (TDM1-0 bits = “00”)
for Normal Speed mode
BICK Period
BICK Pulse Width Low
Pulse Width High
LRCK Edge to BICK “”
(Note 16)
BICK “” to LRCK Edge
(Note 16)
LRCK to SDTO(MSB) (Except I²S mode)
BICK “” to SDTO
SDTI Hold Time
SDTI Setup Time
Stereo mode (TDM1-0 bits = “00”)
for Double and Quad Speed mode
BICK Period
BICK Pulse Width Low
Pulse Width High
LRCK Edge to BICK “”
(Note 16)
BICK “” to LRCK Edge
(Note 16)
SDTI Hold Time
SDTI Setup Time
TDM512 mode (TDM1-0 bits = “01”)
(Note 12)
BICK Period
BICK Pulse Width Low
Pulse Width High
LRCK Edge to BICK “”
(Note 16)
BICK “” to LRCK Edge
(Note 16)
SDTO Setup time BICK “”
SDTO Hold time BICK “”
SDTI/TDMI Hold Time
SDTI/TDMI Setup Time
TDM256 mode (TDM1-0 bits = “10”)
(Note 13)
BICK Period
BICK Pulse Width Low
Pulse Width High
LRCK Edge to BICK “”
(Note 16)
BICK “” to LRCK Edge
(Note 16)
SDTO Setup time BICK “”
SDTO Hold time BICK “”
SDTI/TDMI Hold Time
SDTI/TDMI Setup Time
Symbol Min.
Typ.
Max.
Unit
tBCK
324
tBCKL 130
tBCKH 130
tLRB
20
tBLR
20
tLRS
tBSD
tSDH
50
tSDS
50
tBCK
81
tBCKL
33
tBCKH
33
tLRB
23
tBLR
23
tSDH
10
tSDS
10
tBCK
40
tBCKL
16
tBCKH
16
tLRB
10
tBLR
10
tBSS
6
tBSH
5
tSDH
5
tSDS
6
tBCK
40
tBCKL
16
tBCKH
16
tLRB
10
tBLR
10
tBSS
6
tBSH
5
tSDH
5
tSDS
6
ns
ns
ns
ns
ns
80
ns
80
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
ns
ns
ns
ns
ns
015000617-E-00
- 15 -
2015/01