AK4586 Datasheet, PDF (10/54 Pages) Asahi Kasei Microsystems – MULTI CHANNEL AUDIO CODEC WITH DIR

ASAHI KASEI
[AK4586]
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, PVDD=4.5∼5.5V; TVDD=2.7∼5.5V; C_L=20pF)
Parameter
Symbol
min
Master Clock Timing
Crystal Resonator
Frequency
External Clock
fXTAL
11.2896
256fsn, 128fsd:
fCLK
11.2896
Pulse Width Low
tCLKL
27
Pulse Width High
tCLKH
27
384fsn, 192fsd:
fCLK
16.9344
Pulse Width Low
tCLKL
20
Pulse Width High
tCLKH
20
512fsn, 256fsd:
fCLK
22.5792
Pulse Width Low
tCLKL
15
Pulse Width High
MCKO output
tCLKH
15
Frequency
fMCK
5.6448
Duty
(Note 18) dMCK
40
PLL Clock Recover Frequency
fPLL
32
LRCK Timing
TDM= “0”
LRCK frequency Normal Speed Mode
fsn
32
Double Speed Mode
fsd
88.2
Duty Cycle
Duty
45
TDM= “1” (Slave mode)
LRCK frequency
fsn
32
“H” time
tLRH
1/256fs
“L” time
tLRL
1/256fs
TDM= “1” (Master mode)
LRCK frequency
fsn
32
“H” time
(Note 19) tLRH
typ
50
1/8fs
max
Units
24.576
12.288
18.432
24.576
24.576
60
96
MHz
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
MHz
%
kHz
48
kHz
96
kHz
55
%
48
kHz
ns
ns
48
kHz
ns
Notes:
18. Except the case CLKDIV= “0” for the external clock input. C_L=15pF when MCKO is above 22.5792MHz.
19. “L” time at I²S format.
MS0097-E-01
- 10 -
2001/12