參數(shù)資料
型號(hào): MLX90316EDC-SPI
廠商: Electronic Theatre Controls, Inc.
英文描述: Rotary Position Sensor IC
中文描述: 旋轉(zhuǎn)位置傳感器IC
文件頁(yè)數(shù): 19/41頁(yè)
文件大?。?/td> 688K
代理商: MLX90316EDC-SPI
MLX90316
Rotary Position Sensor IC
3901090316
Rev. 003
Page 19 of 41
Data Sheet
April 07
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.
100 %
A
Slope LNR_A_S
B
C
Slope LNR_B_S
Slope LNR_C_S
Slope LNR_S0
360
(Deg.)
Clamping Low
Clamping High
LNR_A_X
LNR_A_Y
LNR_B_Y
LNR_C_Y
CLAMPHIGH
CLAMPLOW
0 %
0
LNR_B_X
LNR_C_X
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
DD
. In PWM mode, the resolution will be 0.024%
DC
. In
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
Parameter
MELEXSID1
MELEXSID2
MELEXSID3
CUSTUMERID1
CUSTUMERID2
CUSTUMERID3
Value
0
65535
0
65535
0
65535
0
255
0
65535
0
65535
Unit
Identification number: 40 bits freely useable by Customer for traceability purpose.
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