ASAHI KASEI
[AK4140]
SWITCHING CHARACTERISTICS
(Ta=-20∼ 85°C; AVDD=DVDD=2.7~3.6V; CL=20pF)
Parameter
Symbol
min
typ
max
Units
Master Clock Timing
Master Clock
256fs:
Pulse Width Low
Pulse Width High
384fs:
fCLK
tCLKL
tCLKH
fCLK
8.192
27
12.288
MHz
ns
27
ns
12.288
20
18.432
24.576
36.864
MHz
ns
Pulse Width Low
Pulse Width High
tCLKL
tCLKH
fCLK
20
ns
512fs:
16.384
16
MHz
ns
Pulse Width Low
Pulse Width High
tCLKL
tCLKH
fCLK
16
ns
768fs:
24.576
11
MHz
ns
Pulse Width Low
Pulse Width High
tCLKL
tCLKH
11
ns
LRCK Timing (Slave Mode)
Normal mode (TDM1=“L”, TDM0=“L”)
LRCK Frequency
fs
32
45
48
55
kHz
%
Duty Cycle
Duty
TDM256 MODE (TDM1=“L”, TDM0=“H”)
LRCK Frequency
fs
32
48
kHz
ns
“H” time
tLRH
tLRL
1/256fs
1/256fs
“L” time
ns
TDM128 MODE (TDM1=“H”, TDM0=“H”)
LRCK Frequency
fs
32
48
kHz
ns
“H” time
tLRH
tLRL
1/128fs
1/128fs
“L” time
ns
LRCK Timing (Master Mode)
Normal mode (TDM1=“L”, TDM0=“L”)
LRCK Frequency
fs
32
32
32
48
48
48
kHz
%
Duty Cycle
Duty
50
TDM256 MODE (TDM1=“L”, TDM0=“H”)
LRCK Frequency
fs
kHz
ns
“H” time
(Note 5)
tLRH
1/8fs
1/4fs
TDM128 MODE (TDM1=“H”, TDM0=“H”)
LRCK Frequency
fs
kHz
ns
“H” time
(Note 5)
tLRH
Note 5. “L” time at I2S format.
MS0547-E-01
2007/03
- 6 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
