AK4528_04 Datasheet, PDF (8/29 Pages) Asahi Kasei Microsystems – High Performance 24Bit 96kHz Audio CODEC

ASAHI KASEI
[AK4528]
DC CHARACTERISTICS
(Ta=25°C; VA, VD=4.75 ∼ 5.25V; VT=2.7 ∼ 5.25V)
Parameter
Symbol
min
typ
High-Level Input Voltage
VIH
2.2
-
Low-Level Input Voltage
VIL
-
-
High-Level Output Voltage (Iout=−100µA) (Note 11) VOH 2.7 / VT−0.5
-
Low-Level Output Voltage (Iout=100µA)
VOL
-
-
Input Leakage Current
Iin
-
-
Note: 11. The min value is lower voltage of 2.7V or VT−0.5V.
max Units
-
V
0.8
V
-
V
0.5
V
±10
µA
SWITCHING CHARACTERISTICS
(Ta=25°C; VA, VD=4.75 ∼ 5.25V, VT=2.7 ∼ 5.25V; C_L=20pF)
Parameter
Symbol
min
typ
Master Clock Timing
Frequency
fCLK
7.68
Pulse Width Low
tCLKL 0.4/fCLK
Pulse Width High
tCLKH 0.4/fCLK
LRCK Frequency
Normal Speed Mode (DFS = “0”)
fsn
30
44.1
Double Speed Mode (DFS = “1”)
fsd
60
88.2
Duty Cycle
Duty
45
Audio Interface Timing
BICK Period
tBCK
81
BICK Pulse Width Low
tBCKL
33
Pulse Width High
tBCKH
33
LRCK Edge to BICK “↑”
(Note 12) tLRB
20
BICK “↑” to LRCK Edge
(Note 12) tBLR
20
LRCK to SDTO (MSB) (Except I²S mode)
tLRS
BICK “↓” to SDTO
tBSD
SDTI Hold Time
tSDH
20
SDTI Setup Time
tSDS
20
Note 12. BICK rising edge must not occur at the same time as LRCK edge.
max
55.296
54
108
55
40
40
Units
MHz
ns
ns
kHz
kHz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
MS0011-E-01
-8-
2004/01