AK4490 Datasheet, PDF (20/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC

[AK4490]
■ Switching Characteristics
(Ta=25C; AVDD=DVDD=3.0  3.6, VREFHL/R=VDDL/R=4.75  7.2V))
Parameter
Symbol min
Master Clock Timing
Frequency
fCLK
7.7
Duty Cycle
dCLK
40
Minimum Pulse Width
tCLKH 9.155
tCLKL 9.155
LRCK Frequency
1152fs, 512fs or 768fs
256fs or 384fs
128fs or 192fs
64fs
64fs
Duty Cycle
(Note 20)
fsn
30
fsd
54
fsq
108
fsoc
fssd
Duty
45
PCM Audio Interface Timing
BICK Period
1152fs, 512fs or 768fs
tBCK 1/128fsn
256fs or 384fs
tBCK 1/64fsd
128fs or 192fs
tBCK 1/64fsq
64fs
tBCK 1/64fso
64fs
tBCK 1/64fsh
BICK Pulse Width Low
tBCKL
9
BICK Pulse Width High
tBCKH
9
BICK “” to LRCK Edge (Note 21)
tBLR
5
LRCK Edge to BICK “” (Note 21)
tLRB
5
SDATA Hold Time
tSDH
5
SDATA Setup Time
tSDS
5
External Digital Filter Mode
BICK Period
tB
27
BCK Pulse Width Low
tBL
10
BCK Pulse Width High
tBH
10
BCK “” to WCK Edge
tBW
5
WCK Period
tWCK
1.3
WCK Edge to BCK “”
tWB
5
WCK Pulse Width Low
tWCK
54
WCK Pulse Width High
tWCH
54
DATA Hold Time
tDH
5
DATA Setup Time
tDS
5
DSD Audio Interface Timing (64 mode,
DSDSEL 1-0 bits = “00”)
DCLK Period
tDCK
DCLK Pulse Width Low
tDCKL
160
DCLK Pulse Width High
tDCKH
160
DCLK Edge to DSDL/R (Note 22)
tDDD
20
typ
384
768
1/64fs
max Unit
49.152
60
MHz
%
ns
ns
54 kHz
108 kHz
216 kHz
kHz
kHz
55 %
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
ns
ns
ns
ns
ns
ns
ns
ns
20 ns
MS1648-E-03
- 20 -
2014/11