AK4683_10 Datasheet, PDF (13/83 Pages) Asahi Kasei Microsystems – Asynchronous Multi-Channel Audio CODEC with DIR/T

[AK4683]
Parameter
Symbol min typ max Units
Audio Interface Timing (Slave Mode)
Normal mode
BICKA (BICKB) Period
tBCK
81
ns
BICKA (BICKB) Pulse Width Low
tBCKL
32
ns
Pulse Width High
tBCKH
32
ns
LRCKA (LRCKB) Edge to BICKA (BICKB) “↑” (Note 24)
tLRB
20
ns
BICKA (BICKB) “↑” to LRCKA (LRCKB) Edge (Note 24)
tBLR
20
ns
LRCKA (LRCKB) to SDTOA, SDTOB (MSB)
tLRS
20
ns
BICKA (BICKB) “↓” to SDTOA, SDTOB
tBSD
20
ns
SDTIA1-3, SDTIB Hold Time
tSDH
20
ns
SDTIA1-3, SDTIB Setup Time
tSDS
20
ns
TDM 256 mode
BICKA Period
tBCK
81
ns
BICKA Pulse Width Low
tBCKL
32
ns
Pulse Width High
tBCKH
32
ns
LRCKA Edge to BICKA “↑” (Note 24)
tLRB
20
ns
BICKA “↑” to LRCKA Edge (Note 24)
tBLR
20
ns
BICKA “↓” to SDTOA
tBSD
20
ns
SDTIA1 Hold Time
tSDH
10
ns
SDTIA1 Setup Time
tSDS
10
ns
TDM 128 mode
BICKA Period
tBCK
81
ns
BICKA Pulse Width Low
tBCKL
32
ns
Pulse Width High
LRCKA Edge to BICKA “↑”
BICKA “↑” to LRCKA Edge
BICKA “↓” to SDTOA
(Note 24)
(Note 24)
tBCKH
32
tLRB
20
tBLR
20
tBSD
ns
ns
ns
20
ns
SDTIA1-2 Hold Time
tSDH
10
ns
SDTIA1-2 Setup Time
tSDS
10
ns
Audio Interface Timing (Master Mode)
Normal mode
BICKA (BICKB) Frequency
fBCK
64fs
Hz
BICKA (BICKB) Duty
BICKA (BICKB) “↓” to LRCKA (LRCKB) Edge
BICKA (BICKB)“↓” to SDTO
dBCK
50
%
tMBLR -20
20
ns
tBSD
20
ns
SDTIA1-3, B Hold Time
tSDH
20
ns
SDTIA1-3, B Setup Time
tSDS
20
ns
TDM 256 mode
BICKA Frequency
fBCK
256fs
Hz
BICKA Duty
(Note 25)
dBCK
50
%
BICKA “↓” to LRCKA Edge
tMBLR
-12
12
ns
BICKA “↓” to SDTOA
tBSD
20
ns
SDTIA1 Hold Time
tSDH
10
ns
SDTIA1 Setup Time
tSDS
10
ns
TDM 128 mode
BICKA Frequency
fBCK
128fs
Hz
BICKA Duty
(Note 26)
dBCK
50
%
BICKA “↓” to LRCKA Edge
tMBLR
-12
12
ns
BICKA “↓” to SDTOA
tBSD
20
ns
SDTIA1-2 Hold Time
tSDH
10
ns
SDTIA1-2 Setup Time
tSDS
10
ns
Note 24. BICK rising edge must not occur at the same time as LRCK edge.
Note 25. When MCLK2/XTI is 512fs, dBCK is guaranteed. When 384fs and 256fs, dBCK can not be guaranteed.
Note 26. When MCLK2/XTI is 256fs, dBCK is guaranteed. When 128fs, dBCK can not be guaranteed.
MS0427-E-03
- 13 -
2010/09