AK4388 Просмотр технического описания (PDF) - Asahi Kasei Microdevices
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AK4388 Datasheet PDF : 18 Pages
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ASAHI KASEI
[AK4388]
DC CHARACTERISTICS
(Ta=25°C; VDD=4.5 ∼ 5.5V)
Parameter
Symbol
min
typ
max
Units
High-Level Input Voltage
VIH
2.2
-
-
V
Low-Level Input Voltage
VIL
-
-
0.8
V
High-Level Output Voltage (Iout=-80µA)
VOH
VDD-0.4
-
-
V
Low-Level Output Voltage (Iout=80µA)
VOL
-
0.4
V
Input Leakage Current
(Note 11)
Iin
-
-
± 10
µA
Note: 11. Except DIF1 and DEM pins. DIF1 pin has internal pull-up device, DEM pin has internal pull-down device,
nominally 100kΩ.
SWITCHING CHARACTERISTICS
(Ta=25°C; VDD=4.5 ∼ 5.5V; CL=20pF)
Parameter
Symbol
min
typ
Master Clock Frequency
fCLK
2.048
11.2896
Duty Cycle
dCLK
40
LRCK Frequency
Normal Speed Mode
fsn
8
Double Speed Mode
fsd
32
Quad Speed Mode
fsq
120
Duty Cycle
Duty
45
Audio Interface Timing
BICK Period
Normal Speed Mode
tBCK
1/128fs
Double/Quad Speed Mode
tBCK
1/64fs
BICK Pulse Width Low
tBCKL
30
Pulse Width High
tBCKH
30
BICK “↑” to LRCK Edge (Note 12) tBLR
20
LRCK Edge to BICK “↑” (Note 12) tLRB
20
SDTI Hold Time
tSDH
20
SDTI Setup Time
tSDS
20
Reset Timing
RSTN Pulse Width
(Note 13) tRST
150
Notes: 12. BICK rising edge must not occur at the same time as LRCK edge.
13. The AK4388 can be reset by bringing RSTN pin = “L”.
max
36.864
60
48
96
192
55
Units
MHz
%
kHz
kHz
kHz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
MS0485-E-01
-6-
2006/07
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