MLX90316_05 Datasheet, PDF (17/34 Pages) List of Unclassifed Manufacturers – Rotary Position Sensor IC

MLX90316
Rotary Position Sensor IC
14.4. Sensor Front-End
Parameter
Value
Unit
HIGHSPEED
0 = Slow mode
1 = Fast mode
FILTER
AUTO_RG
0…5
0 = disable
1 = enable
RGThresL
0 … 15
RGThresH
0 … 15
14.4.1. HIGHSPEED Parameter
The HIGHSPEED parameter defined the main frequency for the DSP.
• HIGHSPEED = 0 selects the Slow mode with a 7 MHz master clock.
• HIGHSPEED = 1 selects the Fast mode with a 20 MHz master clock.
For a better accuracy, the Slow mode must be enable.
14.4.2. FILTER Parameter
The MLX90316 includes a programmable low-pass filter controlled with the Filter parameter. 6 values are
possible described in the next table.
Filter Value
0
1
2
3
4
5
Attenuation
(dB)
na
2.9
3.6
5
6.1
7
Speed
Mode
Low
High
Low
High
Low
High
Low
High
Low
High
Response time
(ms)
2.22
0.75
3
1
3.75
1.25
3.75
1.25
4.5
1.5
14.4.3. AUTO_RG, RGThresL, RGThresH Parameters
AUTO_RG parameter enables the automatic gain control to optimize the ADC span. RGThresL defines
the minimum RG value while RGThresH defines the maximum RG value. When AUTO_RG is enabled,
the optimized value for RGThresL is 0.
3901090316
Rev. 001
Page 17 of 34
Data Sheet
4 October 05