AK5385A Datasheet, PDF (11/24 Pages) Asahi Kasei Microsystems – 24BIT 192KHZ ADC

ASAHI KASEI
[AK5385A]
(Ta=25°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 5.25V; C_L=20pF)
Parameter
Symbol
min
typ
max
Units
Master Clock Timing
Frequency
fCLK
2.048
27.648
MHz
Pulse Width Low
tCLKL
14.5
ns
Pulse Width High
tCLKH
14.5
ns
LRCK Frequency
Normal Speed Mode
fsn
8
54
kHz
Double Speed Mode
fsd
54
108
kHz
Quad Speed Mode
fsq
108
216
kHz
Duty Cycle
Slave mode
45
55
%
Master mode
50
%
Audio Interface Timing
Slave mode
BICK Period
Normal Speed Mode
tBCK 1/128fsn
ns
Double Speed Mode
tBCK
1/64fsd
ns
Quad Speed Mode
tBCK
1/64fsq
ns
BICK Pulse Width Low
tBCKL
33
ns
Pulse Width High
tBCKH
33
LRCK Edge to BICK “↑”
(Note 11) tLRB
20
BICK “↑” to LRCK Edge
(Note 11) tBLR
20
LRCK to SDTO (MSB) (Except I²S mode) tLRS
BICK “↓” to SDTO
tBSD
ns
ns
ns
20
ns
20
ns
Master mode
BICK Frequency
fBCK
64fs
Hz
BICK Duty
BICK “↓” to LRCK
BICK “↓” to SDTO
dBCK
50
%
tMBLR
−20
20
ns
tBSD
−20
20
ns
Reset Timing
PDN Pulse Width
(Note 12)
tPD
150
ns
PDN “↑” to SDTO valid
(Note 13) ^tPDV
516
1/fs
Note 11.
LRCK
BICK “↑”
Note 12. AK5385A PDN pin = “L”
Note 13. PDN pin
LRCK
“↑”
1LRCK
(1/fs)
MS0265-J-01
- 11 -
2003/11