MLX90308LDF データシートの表示（PDF） - Melexis Microelectronic Systems
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MLX90308LDF Datasheet PDF : 28 Pages
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MLX90308CCC
Programmable Sensor Interface
Table 10. Examples of Fixed Point
Decimal
0
1023
1024
2047
2048
3071
3072
4095
Hexadecimal
Equivalent
0000h
3FFh
400h
7FFh
800h
0BFFh
0C00h
0FFFh
Fixed Point Signed
Number Equivalent
+0.00
+0.9990234
+1.000
+1.9990234
-0.000
-0.9990234
-1.000
-1.9990234
Data Range
Various data are arranged as follows:
Temperature points: 10 bits, 0-03FF in high-
low order.
Pressure points: 10 bits, 0-03FF in high-low
order.
GN1: 10 bits, 0-03FF in high-low order.
OF1: 10 bits, 0-03FF in high-low order.
GNTCi: signed 12 bits (with MSB for the sign),
[-1.9990234, +1.9990234].
OFTCi: signed 12 bits (with MSB for the sign),
[-1.9990234, +1.9990234].
Pci: signed 12 bits (with MSB for the sign),
[-1.9990234, +1.9990234]
DIGMO: 10 bits, 0-03FF in high-low order
(See Table 13 for examples of fixed point
signed numbers.)
Table 11. EEPROM Byte Definitions
Byte
Designation
0
MODE byte
Note
Contents described in Table 9.
1
Cadj
Controls system clock during boot.
2
Coarse Control
Contents described in Table 12.
3
GN1L
The eight LSB's of the Fixed Gain, GN[7:0].
4
OF1L
The eight LSB's of Fixed Offset OF[7:0].
5
GNTC1L
The eight LSB's of the first gain TC GNTC1[7:0].
6
OFTC1L
The eight LSB's of the first offset TC OFTC1[7:0].
7
TR1L
PC5L
The eight LSB's of the first temperature point, T1[7:0].
The eight LSB's of Pressure Coefficient 5 PC5[7:0].
8
GNTC2L
P5L
The eight LSB's of the second gain TC GNTC2[7:0].
The eight LSB's of Pressure Point 5 P5[7:0].
9
OFTC2L
PC4L
The eight LSB's of the second offset TC OFTC2[7:0].
The eight LSB's of Pressure Coefficient 4 PC4[7:0].
10
TR2L
P4L
The eight LSB's of the second temperature point T2[7:0].
The eight LSB's of Pressure Point 4 (or Signature) P4[7:0].
11
GNTC3L
PC3L
The eight LSB's of the third gain TC GNTC3[7:0].
The eight LSB's of Pressure Coefficient 3 (or Signature) PC3
[8:0].
3901090308
Rev 004
Page 16
Aug/02
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