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AK4115 Datasheet, PDF (10/64 Pages) Asahi Kasei Microsystems – High Feature 192kHz 24bit Digital Audio Interface Transceiver
◁
ASAHI KASEI
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD, OVDD, DVDD=2.7~3.6V, TVDD=2.7~5.5V; CL=20pF)
Parameter
Symbol
min
Master Clock Timing
Crystal Resonator Frequency
fXTAL
11.2896
External Clock
Frequency
fECLK
11.2896
Duty
dECLK
40
MCKO1 Output
Frequency
fMCK1
2.816
Duty
dMCK1
40
MCKO2 Output
Frequency
fMCK2
1.408
Duty
dMCK2
40
PLL Clock Recover Frequency (RX7-0)
fpll
22
LRCK Frequency
fs
22
Duty Cycle (at Slave Mode)
dLCK
45
Duty Cycle (at Master Mode)
dLCK
-
Audio Interface Timing 1
Slave Mode
BICK Period
tBCK
72
BICK Pulse Width Low
tBCKL
27
Pulse Width High
tBCKH
27
LRCK Edge to BICK “↑” (Note 11)
tLRB
15
BICK “↑” to LRCK Edge (Note 11)
tBLR
15
LRCK to SDTO (MSB) (3.0V ≤ DVDD,OVDD ≤ 3.6V)
tLRM
-
BICK “↓” to SDTO
(3.0V ≤ DVDD,OVDD ≤ 3.6V)
tBSD
-
LRCK to SDTO (MSB) (2.7V ≤ DVDD,OVDD < 3.0V)
tLRM
-
BICK “↓” to SDTO
(2.7 V≤ DVDD,OVDD < 3.0V)
tBSD
-
DAUX Hold Time
tDXH
15
DAUX Setup Time
tDXS
15
Master Mode
BICK Frequency
fBCK
-
BICK Duty
dBCK
-
BICK “↓” to LRCK
BICK “↓” to SDTO
DAUX Hold Time
tMBLR
-15
tBSD
-
tDXH
15
DAUX Setup Time
tDXS
15
Master Clock Timing 2
EMCK
Frequency
fECLK2
2.816
Duty
dECLK2
40
ELRCK
PLL Lock Range
fEPLL
22
Frequency
fs
22
Duty
dLCK
40
Audio Interface Timing 2
Slave Mode
EBICK Period
tEBCK
72
EBICK Pulse Width Low
tEBCKL
27
Pulse Width High
tEBCKH
27
ELRCK Edge to BICK “↑”
(Note 12) tELRB
15
EBICK “↑” to ELRCK Edge
(Note 12) tEBLR
15
DAUX Hold Time
tEDXH
15
DAUX Setup Time
tEDXS
15
Master Mode
EBICK Frequency
fEBCK
-
EBICK Duty
dEBCK
-
EBICK “↓” to ELRCK
DAUX Hold Time
tEMBLR
-15
tEDXH
15
DAUX Setup Time
tEDXS
15
Note 11. BICK rising edge must not occur at the same time as LRCK edge.
Note 12. EBICK rising edge must not occur at the same time as ELRCK edge.
MS0573-E-00
- 10 -
[AK4115]
typ
max
Units
-
24.576 MHz
-
27.648 MHz
50
60
%
-
27.648 MHz
50
60
%
-
27.648 MHz
50
60
%
-
216
kHz
-
216
kHz
-
55
%
50
-
%
-
-
ns
-
-
ns
-
-
ns
-
-
ns
-
-
ns
-
20
ns
-
20
ns
-
25
ns
-
25
ns
-
-
ns
-
-
ns
64fs
-
Hz
50
-
%
-
15
ns
-
15
ns
-
-
ns
-
-
ns
-
27.648 MHz
50
60
%
-
216
kHz
-
216
kHz
50
60
%
-
-
ns
-
-
ns
-
-
ns
-
-
ns
-
-
ns
-
-
ns
-
-
ns
64fs
-
Hz
50
-
%
-
15
ns
-
-
ns
-
-
ns
2006/12
 ▷