ASAHI KASEI
[AK4319A]
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD,DVDD=4.5 5.5V; CL=20pF)
Parameter
Symbol
min
typ
max
13.9
20.7
13.824
Unit
Master Clock Timing
Crystal Resonator 256fs:
384fs:
MHz
MHz
MHz
MHz
ns
ns
MHz
ns
fCLK
fCLK
fCLK
tCLKL
tCLKH
fCLK
tCLKL
tCLKH
7.10
10.70
2.048
28
28
3.072
20
External Clock
256fs:
Pulse Width Low
Pulse Width High
384fs:
20.736
Pulse Width Low
Pulse Width High
20
ns
LRCK Frequency
Duty Cycle
fs
Duty
8
45
44.1
54
55
kHz
%
Serial Interface Timing
BICK Period
tBCK
tBCKL
tBCKH
tBLR
tLRB
tSDH
tSDS
290
100
100
40
40
40
ns
ns
ns
ns
ns
ns
ns
BICK Pulse Width Low
Pulse Width High
BICK rising to LRCK edge (Note 10 )
LRCK Edge to BICK rising (Note 10 )
SDATA Hold Time
SDATA Setup Time
40
Reset Timing
tPD
100
ns
PD Pulse Width
(Note 11 )
Notes: 10. BICK rising edge must not occur at the same time as LRCK edge.
11. The AK4319A can be reset by bringing PD "L" to "H" only upon power up.
M0011-E-01
1998/6
- 7 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
