AK4529 Datasheet, PDF (10/38 Pages) Asahi Kasei Microsystems – High Performance Multi-channel Audio CODEC

ASAHI KASEI
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=4.5∼5.5V; TVDD=2.7∼5.5V; C_L=20pF)
Parameter
Symbol
min
typ
Master Clock Timing
256fsn, 128fsd:
Pulse Width Low
Pulse Width High
384fsn, 192fsd:
Pulse Width Low
Pulse Width High
512fsn, 256fsd:
Pulse Width Low
Pulse Width High
fCLK
tCLKL
tCLKH
fCLK
tCLKL
tCLKH
fCLK
tCLKL
tCLKH
8.192
27
27
12.288
20
20
16.384
15
15
LRCK Timing
TDM= “0”
Normal Speed Mode
Double Speed Mode
Duty Cycle
fsn
32
fsd
64
Duty
45
TDM= “1”
LRCK frequency
“H” time
“L” time
fsn
tLRH
tLRL
32
1/256fs
1/256fs
Audio Interface Timing
TDM= “0”
BICK Period
tBCK
160
BICK Pulse Width Low
tBCKL
65
Pulse Width High
tBCKH
65
LRCK Edge to BICK “↑”
(Note 17) tLRB
45
BICK “↑” to LRCK Edge
(Note 17) tBLR
45
LRCK to SDTO(MSB)
tLRS
BICK “↓” to SDTO
tBSD
SDTI1-4, DAUX Hold Time
tSDH
40
SDTI1-4, DAUX Setup Time
tSDS
25
TDM= “1”
BICK Period
tBCK
81
BICK Pulse Width Low
tBCKL
32
Pulse Width High
tBCKH
32
LRCK Edge to BICK “↑”
(Note 17) tLRB
20
BICK “↑” to LRCK Edge
(Note 17) tBLR
20
BICK “↓” to SDTO
tBSD
SDTI1 Hold Time
tSDH
10
SDTI1 Setup Time
tSDS
10
Notes: 17. BICK rising edge must not occur at the same time as LRCK edge.
[AK4529]
max
12.288
18.432
24.576
Units
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
48
kHz
96
kHz
55
%
48
kHz
ns
ns
ns
ns
ns
ns
ns
40
ns
40
ns
ns
ns
ns
ns
ns
ns
ns
20
ns
ns
ns
MS0082-E-00
- 10 -
2001/3