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AS8501 数据表(PDF) 19 Page - ams AG

部件名 AS8501
功能描述  High precision voltage and current measurement sensor interface
PDF  41 Pages
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制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS8501 数据表(HTML) 19 Page - ams AG

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AS8501 - Data Sheet
austriamicrosystems
Revision 1.1, 04-April-06
www.austriamicrosystems.com
Page 18 of 40
subregister CRU: calibration constant selection for voltage path ( 3 bits) in registers CRA,CRB
Nr.
Calibration const. U
cu2 cu1 cu0
NOTE
0
CAU0
0
0
0
1
CAU1
0
0
1
2
CAU2
0
1
0
3
CAU3
0
1
1
4
CAU4
1
0
0
5
CAU5
1
0
1
6
1548
1
1
0
7
1548
1
1
1
subregister CRM: measurement path for registers CRA,CRB
Nr.
Bits
13
12
11
10
9
NOTE
CRA bit
names
M5
M4
M3
M2
M1 1), 2)
1
Defaults
0
0
0
0
1 measurement RSHH-RSHL
2
0
1
0
0
0 voltage bus
3
0
1
0
1
0 voltage bus, internal temperature
4
0
1
1
0
0 voltage bus, reference low=RSHL
5
1
0
0
0
0 voltage bus, gain=1
6
1
0
0
1
0 voltage bus,gain=1, internal temperature
7
1
0
1
0
0 voltage bus, gain=1, reference low=RSHL
Notes:
1) these bits define the inner part of the voltage path settings
2) only the listed combinations are allowed
subregister GN: gain definition bits, Registers CRA,CRB
Nr.
GAIN
g1
g0
NOTE
0
6
0
0
1
24
0
1
2
50
1
0
3
100
1
1
subregister OSF: oversampling frequency bit, Registers CRA,CRB
Nr.
Fovs (fclk=8MHz)
Fovs (internal osc)
f
NOTE
0
2.048MHz
132kHz
0 1)
1
4.096MHz
264kHz
1 1)
Notes:
1)
For internal oscillator typical values
subregister OSR: oversampling ratio bit, Registers CRA, CRB
Nr.
R1
r
NOTE
0
64
0
1
128
1



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