ASAHI KASEI
[AK4356]
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=4.75~5.25V; CL=20pF)
Parameter
Symbol
min
typ
max
Units
Master Clock Timing
Frequency
fCLK
Duty
8.192
40
36.864
60
MHz
%
Duty
LRCK frequency
(Note 16)
Normal Speed Mode (DFS1-0 = “00”)
fsn
fsd
fsq
Duty
32
64
128
45
48
96
192
55
kHz
kHz
kHz
%
Double Speed Mode (DFS1-0 = “01”)
4 times Speed Mode (DFS1-0 = “10”)
Duty Cycle
Serial Interface Timing
BICK Period
Normal Speed Mode
Double Speed Mode
4 times Speed Mode
tBCK
tBCK
tBCK
tBCKL
tBCKH
tBLR
tLRB
tSDH
tSDS
1/128fs
1/64fs
1/64fs
33
ns
ns
ns
ns
ns
ns
ns
ns
ns
BICK Pulse Width Low
Pulse Width High
BICK “” to LRCK Edge
LRCK Edge to BICK “”
SDTI Hold Time
33
20
20
20
(Note 17)
(Note 17)
20
SDTI Setup Time
Control Interface Timing
CCLK Period
tCCK
tCCKL
tCCKH
tCDS
tCDH
tCSW
tCSS
tCSH
tR1
200
80
80
40
40
150
50
50
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CCLK Pulse Width Low
Pulse Width High
CDTI Setup Time
CDTI Hold Time
CSN “H” Time
CSN “¯” to CCLK “”
CCLK “” to CSN “”
Rise Time of CSN
20
20
20
20
tF1
tR2
tF2
Fall Time of CSN
Rise Time of CCLK
Fall Time of CCLK
Power-down/Reset Timing
PDN Pulse Width
(Note 18)
tPDW
150
ns
Note:16. If sampling speed mode (DFS0-1) changes, please reset by PDN pin or RSTN bit.
17. BICK rising edge must not occur at the same time as LRCK edge.
18. The AK4356 can be reset by PDN pin “L” upon power up.
If CKS0-2 or DFS0-1 changes, the AK4356 should be reset by PDN pin or RSTN bit.
M0072-E-01
1999/09
- 10 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
