AK4370 View Datasheet(PDF) - Asahi Kasei Microdevices
Part Name
Description
Manufacturer
AK4370 Datasheet PDF : 49 Pages
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ASAHI KASEI
[AK4370]
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, HVDD=1.6 ∼ 3.6V; CL = 20pF; unless otherwise specified)
Parameter
Symbol
min
typ
Master Clock Input Timing
Frequency
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
20.3
-
LRCK Timing
Frequency
fs
8
44.1
Duty Cycle: Slave Mode
Duty
45
-
Master Mode
Duty
-
50
Serial Interface Timing (Note 24)
Slave Mode (M/S bit = “0”):
BICK Period (Note 25)
tBCK
312.5 or 1/(64fs)
-
BICK Pulse Width Low
tBCKL
100
-
Pulse Width High
tBCKH
100
-
LRCK Edge to BICK “↑” (Note 26)
tLRB
50
-
BICK “↑” to LRCK Edge (Note 26)
tBLR
50
-
SDATA Hold Time
tSDH
50
-
SDATA Setup Time
tSDS
50
-
Master Mode (M/S bit = “1”):
BICK Frequency (BF bit = “1”)
fBCK
-
64fs
(BF bit = “0”)
fBCK
-
32fs
BICK Duty
dBCK
-
50
BICK “↓” to LRCK
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 “↑” to CCLK “↑”
tCSS
50
-
CCLK “↑” to CSN “↑”
tCSH
50
-
max Units
24.576
-
-
-
MHz
ns
ns
ns
48
kHz
55
%
-
%
1/(32fs) ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
Hz
-
Hz
-
%
50
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
Note 22. Except AC coupling.
Note 23. Pulse width to ground level when MCKI is connected to a capacitor in series and a resistor is connected to
ground. (Refer to Figure 3.)
Note 24. Refer to “Serial Data Interface”.
Note 25. Min is longer value between 312.5ns or 1/(64fs) except for PLL Mode, PLL4-0 bits = “EH”, “FH”.
Note 26. BICK rising edge must not occur at the same time as LRCK edge.
MS0595-E-00
- 11 -
2007/03
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