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AS8515 데이터시트(PDF) 42 Page - ams AG

부품명 AS8515
상세설명  Data Acquisition System with Power Management and LIN Transceiver for 12V Battery Sensor Applications
PDF  65 Pages
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제조업체  AMSCO [ams AG]
홈페이지  http://www.ams.com
Logo AMSCO - ams AG

AS8515 데이터시트(HTML) 42 Page - ams AG

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Revision 0.7
42 - 65
AS8515
Datasheet - AS8515 Bottom Die Overvi ew
Internal DVDD Power-on Reset.
Low Speed Oscillator.
High Speed Oscillator.
Notes:
1. Accuracy after trimming.
External Clock.
Table 39. Internal DVDD Power-on Reset
Symbol
Parameter
Min
Typ
Max
Units
VPORHID
Power On Reset Threshold
2.2
2.4
2.7
V
VHYST
Hysteresis
1
1. V
PORLO = VPORHI - VHYST where VPORLO is the lower threshold of POR.
0.2
0.25
0.4
V
tPORD
POR time - The duration from Power ON till the
time, internal Power On Reset signal goes
HIGH
2
2. V
PORLO = VPORHI - VHYST where VPORLO is the lower threshold of POR.
1µs
IPORD
Current
3
3. I
PORD can not be switched off.
1.5
µA
Table 40. Low Speed Oscillator
Symbol
Parameter
Min
Typ
Max
Units
fLS
Frequency
262.144
kHz
fLS_ACC
Accuracy
± 7
%
ILS
Supply current
5
µA
Table 41. High Speed Oscillator
Symbol
Parameter
Min
Typ
Max
Units
fHS
Frequency
4.096
MHz
fHSACC
Accuracy
1
±4
%
IHS
Supply current
300
µA
Table 42. External Clock
Symbol
Parameter
Conditions
Min
Typ
Max
Units
fCLKEXT
Clock frequency
2048/
4096/
8192
kHz
DIVCLKEXT
Clock division factor
to be programmed in Register 08
CLK_REG through the serial bus SPI.
2/4/8
DCCLKEXT
Duty Cycle of external clock
40
60
%



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