
ASAHI KASEI 
[AK4343] 
MS0478-E-01 
2006/10 
- 13 - 
DC CHARACTERISTICS 
(Ta=25
°
C; AVDD, DVDD=2.6 
~
 3.6V; HVDD=2.6 
~
 5.25V) 
Parameter 
High-Level Input Voltage 
Low-Level Input Voltage 
High-Level Output Voltage 
Low-Level Output Voltage 
(Except SDA pin: Iout=200
μ
A)
Symbol
VIH 
VIL 
VOH 
VOL 
VOL 
Iin 
min 
typ 
- 
- 
- 
- 
- 
- 
max 
- 
Units
V 
V 
V 
70%DVDD
- 
DVDD
0.2
- 
- 
- 
30%DVDD
- 
(Iout=
200
μ
A)
0.2 
0.4 
±
10 
V 
V 
μ
A 
(SDA pin: Iout=3mA)
Input Leakage Current 
SWITCHING CHARACTERISTICS 
(Ta=25
°
C; AVDD, DVDD=2.6 
~
 3.6V; HVDD=2.6 
~
 5.25V; C
L
=20pF; unless otherwise specified) 
Parameter 
PLL Master Mode (PLL Reference Clock = MCKI pin)
MCKI Input Timing 
Frequency 
Pulse Width Low 
Pulse Width High 
MCKO Output Timing 
Frequency 
Duty Cycle 
Except 256fs at fs=32kHz, 29.4kHz 
256fs at fs=32kHz, 29.4kHz 
LRCK Output Timing 
Frequency 
DSP Mode: Pulse Width High 
Except DSP Mode: Duty Cycle 
BICK Output Timing 
Period 
BCKO bit = “0” 
BCKO bit = “1” 
Duty Cycle 
PLL Slave Mode (PLL Reference Clock = MCKI pin)
MCKI Input Timing 
Frequency 
Pulse Width Low 
Pulse Width High 
MCKO Output Timing 
Frequency 
Duty Cycle 
Except 256fs at fs=32kHz, 29.4kHz 
256fs at fs=32kHz, 29.4kHz 
LRCK Input Timing 
Frequency 
DSP Mode: Pulse Width High 
Except DSP Mode: Duty Cycle 
BICK Input Timing 
Period 
Pulse Width Low 
Pulse Width High 
Symbol
min 
typ 
max 
Units
fCLK 
tCLKL 
tCLKH 
11.2896 
0.4/fCLK 
0.4/fCLK 
- 
- 
- 
27 
- 
- 
MHz
ns 
ns 
fMCK 
dMCK 
dMCK 
0.2352 
40 
- 
- 
12.288 
60 
- 
MHz
% 
% 
50 
33 
fs 
7.35 
- 
- 
- 
48 
- 
- 
kHz 
ns 
% 
tLRCKH
Duty 
tBCK 
50 
tBCK 
tBCK 
dBCK 
- 
- 
- 
1/(32fs) 
1/(64fs) 
50 
- 
- 
- 
ns 
ns 
% 
fCLK 
tCLKL 
tCLKH 
11.2896 
0.4/fCLK 
0.4/fCLK 
- 
- 
- 
27 
- 
- 
MHz
ns 
ns 
fMCK 
dMCK 
dMCK 
0.2352 
40 
- 
- 
12.288 
60 
- 
MHz
% 
% 
50 
33 
fs 
7.35 
- 
- 
- 
48 
kHz 
ns 
% 
tLRCKH
Duty 
tBCK
60 
45 
1/fs 
 tBCK
55 
tBCK 
tBCKL 
tBCKH
1/(64fs) 
0.4 x tBCK
0.4 x tBCK
- 
- 
- 
1/(32fs) 
- 
- 
ns 
ns 
ns