EVB90320 Melexis Inc, EVB90320 Datasheet - Page 25
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EVB90320
Manufacturer Part Number
EVB90320
Description
DEMO KIT MLX90320 SENS INTERFACE
Manufacturer
Melexis Inc
Specifications of EVB90320
Main Purpose
Interface, Automotive Sensors
Embedded
Yes, Other
Utilized Ic / Part
MLX90320
Primary Attributes
USB or 12V Supply
Secondary Attributes
Interface by USB and Serial Port
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EVB90320
Manufacturer:
MELEXIS/迈来芯
Quantity:
20 000
8.4 Non Ratio-metric mode without use of external temperature sensor.
In this application mode the LM7805 generates the supply for the sensor, for the MLX90320 and for an ADC used
to convert the analog output signal in a digital value. C1, C2, C3, C4 and R2 are the same as in the non ratio-
metric application mode with external temperature sensor.
9 EEPROM Contents
Address
Decimal
0 to 2
3
4 to 6
7
7
3901090320
Rev 004
Bits
0 to 3
0 to 3
0 to 3
0
1 to 3
EEPROM content
CLKADJ[3..0]
G2 for Gain DAC
IINV
CG[2..0]
T1 for Gain DAC
Page 25 of 32
Comments
Contains the value of T1 used to calculate the fine gain
in order to operate the second order compensation of
the sensor span drift with temperature.
These bits are used to program the oscillator. If
CLKADJ[3:0] = 1111, the oscillator runs at the highest
frequency. If CLKADJ[3:0] = 0000, the oscillator runs at
the slowest frequency. This calibration is required to
calibrate the oscillator within +/-15% accuracy. A bad
oscillator calibration may cause malfunction of the
communication protocol thus it is only factory set.
Contains the second order fine gain coefficient used to
compensate the sensor sensitivity drift with temperature.
The MSB is the sign bit (two’s complement): If G2[11] =
1 then G2 is negative, if G2[11] = 0 then G2 is positive.
Bit used to invert the inputs
3 bits used to operate the coarse gain calibration.
Automotive small sensor interface
MLX90320
Data Sheet
Mar/05