mlx90316 Melexis Company, mlx90316 Datasheet - Page 19

• Manufacturer Part Number: mlx90316
• Description: Rotary Position Sensor Ic
• Manufacturer: Melexis Company

14.2.3. LNR Parameters
The LNR parameters, together with the clamping values, fully define the relation (the transfer function)
between the digital angle and the output signal.
The shape of the MLX90316 transfer function from the digital angle value to the output voltage is
described by the drawing below. Six segments can be programmed but the clamping levels are
necessarily flat.
Two, three, or even five calibration points are then available, reducing the overall non-linearity of the IC by
almost an order of magnitude each time. Three or five point calibration will be preferred by customers
looking for excellent non-linearity figures. Two-point calibrations will be preferred by customers looking for
a cheaper calibration set-up and shorter calibration time.
14.2.4. CLAMPING Parameters
The clamping levels are two independent values to limit the output voltage range. The CLAMP_LOW
parameter adjusts the minimum output voltage level. The CLAMP_HIGH parameter sets the maximum
output voltage level. Both parameters have 16 bits of adjustment. In analog mode, the resolution will be
limited by the D/A converter (12 bits) to 0.024%V
SPI mode, the resolution is 14bits or 0.022deg over 360deg.
14.2.5. DEADZONE Parameter
The dead zone is defined as the angle window between 0 and 359.9999.
When the digital angle lies in this zone, the IC is in fault mode (RESONFAULT must be set to “1” – See
14.6.1).
14.3. Identification
Identification number: 40 bits freely useable by Customer for traceability purpose.
3901090316
Rev. 003
CLAMPLOW
CLAMPHIGH
LNR_B_Y
LNR_C_Y
LNR_A_Y
100 %
0 %
0
Clamping High
CUSTUMERID1
CUSTUMERID2
CUSTUMERID3
MELEXSID1
MELEXSID2
MELEXSID3
Parameter
LNR_A_X
A
Slope LNR_S0
Page 19 of 41
DD
LNR_B_X
B
. In PWM mode, the resolution will be 0.024%
Slope LNR_A_S
0 … 65535
0 … 65535
0 … 65535
0 … 65535
0 … 65535
0 … 255
Value
LNR_C_X
Rotary Position Sensor IC
C
Slope LNR_B_S
Unit
MLX90316
Clamping Low
Slope LNR_C_S
Data Sheet
April 07
(Deg.)
DC
360
. In