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AK4388 Datasheet, PDF (6/18 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit 2ch ΔΣ DAC | |||
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ASAHI KASEI
[AK4388]
DC CHARACTERISTICS
(Ta=25°C; VDD=4.5 ⼠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 100kâ¦.
SWITCHING CHARACTERISTICS
(Ta=25°C; VDD=4.5 ⼠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 âââ to LRCK Edge (Note 12) tBLR
20
LRCK Edge to BICK âââ (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 = âLâ.
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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