AK4388AET 데이터 시트보기 (PDF) - Asahi Kasei Microdevices
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AK4388AET Datasheet PDF : 18 Pages
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[AK4388A]
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 10)
Iin
-
-
± 10
µA
Note 10. Except for the DIF1 and DEM pins. The DIF1 pin has internal pull-up resistor, the DEM pin has internal
pull-down resistor, nominally 100kΩ. (typ. 100kΩ)
SWITCHING CHARACTERISTICS
(Ta = 25°C; VDD = 4.5 ∼ 5.5V; CL = 20pF)
Parameter
Symbol
min
typ
Master Clock Frequency
Duty Cycle
fCLK
dCLK
2.048
40
11.2896
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
Double/Quad Speed Mode
BICK Pulse Width Low
Pulse Width High
BICK “↑” to LRCK Edge (Note 11)
LRCK Edge to BICK “↑” (Note 11)
SDTI Hold Time
SDTI Setup Time
tBCK
tBCK
tBCKL
tBCKH
tBLR
tLRB
tSDH
tSDS
1/128fs
1/64fs
30
30
20
20
20
20
Reset Timing
RSTN Pulse Width
(Note 12) tRST
150
Note 11. BICK rising edge must not occur at the same time as LRCK edge.
Note 12. The AK4388A can be reset by bringing RSTN pin = “L” → “H”.
max
36.864
60
48
96
192
55
Units
MHz
%
kHz
kHz
kHz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
MS1008-E-02
-6-
2010/09
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