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AK4612EQ Datasheet, PDF (15/68 Pages) Asahi Kasei Microsystems – 6/8-Channel Audio CODEC | |||
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[AK4612]
εΠονϯάà²à©
(Ta= Tmin â¼ Tmax; AVDD1=AVDD2=3.0â¼3.6; DVDD=1.6â¼2.0V; TVDD1=1.6â¼3.6V, TVDD2=1.6â¼3.6V; CL=20pF;
unless otherwise specified)
Parameter
Symbol
min
typ
max
Units
Master Clock Timing
Crystal Resonator
Frequency
fXTAL
11.2896
24.576
MHz
MCKO Output
Frequency (TVDD1 ⥠3.0V)
Duty cycle
fMCK
5.6448
24.576
MHz
dMCK
40
50
60
%
External Clock
256fsn:
fCLK
8.192
12.288
MHz
Pulse Width Low
tCLKL
32
ns
Pulse Width High
tCLKH
32
ns
384fsn:
fCLK
12.288
18.432
MHz
Pulse Width Low
tCLKL
22
ns
Pulse Width High
tCLKH
22
ns
512fsn, 256fsd, 128fsq:
fCLK
16.384
24.576
MHz
Pulse Width Low
tCLKL
16
ns
Pulse Width High
tCLKH
16
ns
MCKO Output
Frequency
fMCK
4.096
12.288
MHz
(TVDD1 ⥠3.0V)
fMCK
12.288
24.576
MHz
Duty cycle
(Note 16) dMCK
40
50
60
%
LRCK Timing (Slave mode)
Stereo mode
(TDM0 bit = â0â, TDM1 bit = â0â)
Normal Speed Mode
fsn
32
48
kHz
Double Speed Mode
fsd
64
96
kHz
Quad Speed Mode
fsq
128
192
kHz
Duty Cycle
Duty
45
55
%
TDM512 mode
(Note 17)
(TDM0 bit = â0â, TDM1 bit = â1â)
LRCK frequency
fsn
32
48
kHz
âHâ time
tLRH
1/512fs
ns
âLâ time
tLRL
1/512fs
ns
TDM256 mode
(Note 18)
(TDM0 bit = â1â, TDM1 bit = â0â)
LRCK frequency
fsd
64
96
kHz
âHâ time
tLRH
1/256fs
ns
âLâ time
tLRL
1/256fs
ns
TDM128 mode
(Note 19)
(TDM0 bit = â1â, TDM1 bit = â1â)
LRCK frequency
fsq
128
192
kHz
âHâ time
tLRH
1/128fs
ns
âLâ time
tLRL
1/128fs
ns
MS1039-J-01
- 15 -
2009/06
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