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AK4372 Datasheet, PDF (11/62 Pages) Asahi Kasei Microsystems – DAC with built-in PLL & HP-AMP
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[AK4372]
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD = DVDD=1.6 ∼ 3.6V; CL = 20pF; unless otherwise specified)
Parameter
Symbol
min
Master Clock Input Timing
Frequency (PLL mode)
fCLK
11.2896
(EXT mode)
fCLK
2.048
Pulse Width Low (Note 22)
tCLKL
0.4/fCLK
Pulse Width High (Note 22)
tCLKH
0.4/fCLK
AC Pulse Width (Note 23)
tACW
18.5
LRCK Timing
Frequency
fs
8
Duty Cycle: Slave Mode
Duty
45
Master Mode
Duty
-
MCKO Output Timing (PLL mode)
Frequency
fCLKO
0.256
Duty Cycle (Except fs=32kHz, PS1-0= “00”)
dMCK
40
(fs=32kHz, PS1-0= “00”)
dMCK
-
Serial Interface Timing (Note 24)
Slave Mode (M/S bit = “0”):
BICK Period (Note 25)
(Except PLL Mode,
PLL4-0 bit = “01110”, “01111”)
tBCK 312.5 or 1/(64fs)
(PLL Mode, PLL4-0 bits = “01110”)
tBCK
-
(PLL Mode, PLL4-0 bits = “01111”)
tBCK
-
BICK Pulse Width Low
(Except PLL Mode,
PLL4-0 bit = “01110”, “01111”)
tBCKL
100
(PLL Mode,
PLL4-0 bit = “01110”, “01111”)
tBCKL
0.4 x tBCK
BICK Pulse Width High
(Except PLL Mode,
PLL4-0 bit = “01110”, “01111”)
tBCKH
100
(PLL Mode,
PLL4-0 bit = “01110”, “01111”)
tBCKH
0.4 x tBCK
LRCK Edge to BICK “↑” (Note 26)
BICK “↑” to LRCK Edge (Note 26)
tLRB
50
tBLR
50
SDATA Hold Time
tSDH
50
SDATA Setup Time
tSDS
50
Master Mode (M/S bit = “1”):
BICK Frequency (BF bit = “1”)
fBCK
-
(BF bit = “0”)
fBCK
-
BICK Duty
BICK “↓” to LRCK
dBCK
-
tMBLR
−50
SDATA Hold Time
tSDH
50
SDATA Setup Time
tSDS
50
Control Interface Timing (3-wire Serial mode)
CCLK Period
tCCK
200
CCLK Pulse Width Low
tCCKL
80
Pulse Width High
tCCKH
80
CDTI Setup Time
tCDS
40
CDTI Hold Time
tCDH
40
CSN “H” Time
tCSW
150
CSN Edge to CCLK “↑” (Note 27)
CCLK “↑” to CSN Edge (Note 27)
tCSS
50
tCSH
50
typ
max
-
27
-
24.576
-
-
-
-
-
-
44.1
48
-
55
50
-
-
12.288
-
60
33
-
- 1/(32fs)
1/(32fs) -
1/(64fs) -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
64fs
-
32fs
-
50
-
-
50
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Units
MHz
MHz
ns
ns
ns
kHz
%
%
MHz
%
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Hz
Hz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MS0684-E-02
- 11 -
2008/12
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