ASAHI KASEI
[AK4140]
SWITCHING CHARACTERISTICS
(Ta=-20∼ 85°C; AVDD=DVDD=2.7~3.6V; C
L
=20pF)
Parameter
Symbol
min
Master Clock Timing
8.192
fCLK
Master Clock
256fs:
27
tCLKL
Pulse Width Low
27
tCLKH
Pulse Width High
12.288
fCLK
384fs:
20
tCLKL
Pulse Width Low
20
tCLKH
Pulse Width High
16.384
fCLK
512fs:
16
tCLKL
Pulse Width Low
16
tCLKH
Pulse Width High
24.576
fCLK
768fs:
11
tCLKL
Pulse Width Low
11
tCLKH
Pulse Width High
LRCK Timing (Slave Mode)
Normal mode (TDM1=“L”, TDM0=“L”)
LRCK Frequency
fs
32
Duty Cycle
Duty
45
TDM256 MODE (TDM1=“L”, TDM0=“H”)
LRCK Frequency
fs
32
“H” time
tLRH
1/256fs
“L” time
tLRL
1/256fs
TDM128 MODE (TDM1=“H”, TDM0=“H”)
LRCK Frequency
fs
32
“H” time
tLRH
1/128fs
“L” time
tLRL
1/128fs
LRCK Timing (Master Mode)
Normal mode (TDM1=“L”, TDM0=“L”)
LRCK Frequency
fs
32
Duty Cycle
Duty
TDM256 MODE (TDM1=“L”, TDM0=“H”)
LRCK Frequency
fs
32
“H” time
tLRH
TDM128 MODE (TDM1=“H”, TDM0=“H”)
fs
32
LRCK Frequency
tLRH
“H” time
Note 5. “L” time at I
2
S format.
typ
max
12.288
Units
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
18.432
24.576
36.864
48
55
48
kHz
%
kHz
ns
ns
kHz
ns
ns
48
48
50
48
1/8fs
48
1/4fs
kHz
%
kHz
ns
kHz
ns
MS0547-E-01
-6-
2007/03
AKM [ ASAHI KASEI MICROSYSTEMS ]
