AK8815 查看數據表（PDF） - Asahi Kasei Microdevices
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AK8815 Datasheet PDF : 37 Pages
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ASAHI KASEI
[AK8815/16]
(4) Reset
(4-1) Reset Timing
RSTN
CLKOUT
12
pRES
99 100
Parameter
RSTN Pulse Width
Symbol
Min.
Typ.
Max
Unit
pRES
100
SYSCLK
(4-2) Power Down Sequence / Reset Sequence
Before PDN setting ( PDN to low ), Reset must be enabled for a duration of longer-than-100 clock time.
After PDN release ( PDN to high ), Reset must be enabled for 10 mS or longer till analog part reference
voltage & current are stabilized.
CLKIN
CLKOUT
(CLKOUT=H)
RSTN
sRES
hRES
VIH1, VIH2
VIL1, VIL2
PDN
SCLK, SCS
SDO
GND
Hi-z ok
(SDO=H)
tSCLL
VIH1, VIH2
Low
Parameter
Symbol
Min.
Typ.
Max
Unit
RSTN Pulse Width
sRES
100
Time from PDN to high to RSTN to
high
hRES
10
SCL low duration before RSTN to
rise
tSCLL
50
SYSCLK
msec
nsec
at power-down, all control signals must surely be set to either power supply or ground level of the selected power
supply, and not to ViH / ViL levels.
MS0331-E-00
11
2004 / 08
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