ASAHI KASEI
[AK4527B]
DC CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=4.5 5.5V; TVDD=2.7 5.5V)
Parameter
Symbol
VIH
VIL
min
2.2
-
typ
-
-
max
-
0.8
Units
V
V
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage
(SDTO pin:
(DZF1, DZF2/OZF pins:
Iout=-100µA)
Iout=-100µA)
VOH
VOH
TVDD-0.5
AVDD-0.5
-
-
-
-
V
V
Low-Level Output Voltage
(SDTO, DZF1, DZF2/OZF pins: Iout= 100µA)
VOL
VOL
Iin
-
-
-
-
-
-
0.5
0.4
±10
V
V
µA
(SDA pin:
Iout= 3mA)
Input Leakage Current
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=4.5 5.5V; TVDD=2.7 5.5V; CL=20pF)
Parameter
Symbol
min
typ
max
Units
Master Clock Input
256fsn, 128fsd:
fCLK
8.192
27
27
12.288
20
20
12.288
18.432
24.576
MHz
ns
ns
MHz
ns
ns
Pulse Width Low
Pulse Width High
384fsn, 192fsd:
Pulse Width Low
Pulse Width High
512fsn, 256fsd:
Pulse Width Low
tCLKL
tCLKH
fCLK
tCLKL
tCLKH
fCLK
16.384
15
MHz
ns
tCLKL
Pulse Width High
tCLKH
15
ns
LRCK frequency
Normal Speed Mode
Double Speed Mode
Duty Cycle
fsn
fsd
Duty
32
64
45
48
96
55
kHz
kHz
%
Audio Interface Timing
BICK Period
tBCK
tBCKL
tBCKH
tLRB
tBLR
tLRS
tBSD
tSDH
tSDS
160
65
65
45
45
ns
ns
ns
ns
ns
ns
ns
ns
ns
BICK Pulse Width Low
Pulse Width High
LRCK Edge to BICK “↑”
BICK “↑” to LRCK Edge
LRCK to SDTO(MSB)
BICK “↓” to SDTO
SDTI1-3, DAUX Hold Time
SDTI1-3, DAUX Setup Time
(Note 19)
(Note 19)
40
40
40
25
Notes: 19. BICK rising edge must not occur at the same time as LRCK edge.
MS0056-E-00
2000/10
- 10 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
