[AK5357]
SWITCHING CHARACTERISTICS
(Ta=Tmin ∼ Tmax; VA=VD=2.7 ∼ 5.5V; CL=20pF)
Parameter
Symbol
min
typ
max
Units
Master Clock Timing
Frequency
fCLK
tCLKL
tCLKH
1.024
36.864
MHz
ns
Pulse Width Low
Pulse Width High
0.4/fCLK
0.4/fCLK
ns
LRCK Frequency
fs
4
96
55
kHz
%
Duty Cycle
Slave mode
45
Master mode
50
%
Audio Interface Timing
Slave mode
SCLK Period
tSCK
tSCKL
tSCKH
tLRSH
tSHLR
tLRS
160
65
ns
ns
ns
ns
ns
ns
ns
SCLK Pulse Width Low
Pulse Width High
65
LRCK Edge to SCLK “↑”
SCLK “↑” to LRCK Edge
(Note 11)
(Note 11)
30
30
LRCK to SDTO (MSB) (Except I2S mode)
SCLK “↓” to SDTO
Master mode
35
35
tSSD
SCLK Frequency
fSCK
dSCK
tMSLR
tSSD
64fs
50
Hz
%
SCLK Duty
SCLK “↓” to LRCK
SCLK “↓” to SDTO
−20
−20
20
35
ns
ns
Reset Timing
PDN Pulse Width
tPD
150
ns
(Note 12)
tPDV
tPDV
4132
4129
1/fs
1/fs
PDN “↑” to SDTO valid at Slave Mode (Note 13)
PDN “↑” to SDTO valid at Master Mode (Note 13)
Note 11. SCLK rising edge must not occur at the same time as LRCK edge.
Note 12. The AK5357 can be reset by bringing the PDN pin = “L”.
Note 13. This cycle is the number of LRCK rising edges from the PDN pin = “H”.
MS0294-E-03
2009/03
- 8 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
