ASAHI KASEI
[AK4384]
SWITCHING CHARACTERISTICS
(Ta=25°C; VDD=4.5
∼
5.5V)
Parameter
Symbol
min
fCLK
2.048
Master Clock Frequency
dCLK
40
Duty Cycle
LRCK Frequency
Normal Speed Mode
fsn
8
Double Speed Mode
fsd
60
Quad Speed Mode
fsq
120
Duty Cycle
Duty
45
Audio Interface Timing
BICK Period
1/128fs
tBCK
Normal Speed Mode
1/64fs
tBCK
Double/Quad Speed Mode
30
tBCKL
BICK Pulse Width Low
30
tBCKH
Pulse Width High
20
tBLR
BICK rising to LRCK Edge
(Note 13)
20
tLRB
LRCK Edge to BICK rising
(Note 13)
20
tSDH
SDTI Hold Time
20
tSDS
SDTI Setup Time
Control Interface Timing
200
tCCK
CCLK Period
80
tCCKL
CCLK Pulse Width Low
80
tCCKH
Pulse Width High
40
tCDS
CDTI Setup Time
40
tCDH
CDTI Hold Time
150
tCSW
CSN “H” Time
50
tCSS
CSN “↓” to CCLK “↑”
50
tCSH
CCLK “↑” to CSN “↑”
Reset Timing
tPD
150
PDN Pulse Width
(Note 14)
Notes: 13. BICK rising edge must not occur at the same time as LRCK edge.
14. The AK4384 can be reset by bringing PDN= “L”.
typ
11.2896
max
36.864
60
48
96
192
55
Units
MHz
%
kHz
kHz
kHz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MS0176-E-01
-6-
2006/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
