MELEXIS DMB_MLX90316

MLX90316
Evaluation Board
Demonstration Board
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Related Documents
Datasheet MLX90316
Applications Note Back-End Calibration
Applications Note Magnets for MLX90316 Rotary Position Sensor
Applications Note Hall Applications Guide
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Ordering Information
Part No.
Description
EVB_MLX90316DC
EVB_MLX90316GO
DMB_MLX90316
Evaluation Board MLX90316xDC – SOIC-8 Package
Evaluation Board MLX90316xGO – TSSOP-16 Package
Demonstration Board MLX90316
1. Evaluation Board (EVB_MLX90316DC)
1.1. Description
The EVB_MLX90316DC consists into a Printed Circuit Board (PCB) and Magnetic Knob.
•
The PCB implements the recommended application diagram from the MLX90316 datasheet. The
MLX90316DC (SOIC-8) is mounted on the board. It also includes an aluminum ring in order to center
the magnetic knob (see below) above the sensitive area of MLX90316. By default, the output transfer
characteristic is programmed to get a 10%Vdd ... 90%Vdd analog output swing for 0 … 360 Degrees
travel (complete revolution).
•
The magnetic knob features a small SmCo magnet diametrally magnetized D6H2.5 (Diameter = 6 mm
and Height = 2.5 mm).
1.2. Application Diagram
The Pin SCLK and /SS are left floating in order to enable the use of the EVB in Serial Protocol mode. If
this mode is not activated, we recommend shorting those pins to GND through 0 Ohm resistor. It is
mandatory to run EMI test.
If the Serial Protocol mode is activated, the PCB allows the introduction of decoupling capacitor.
39xx9031601
Rev 001
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Apr. 06
MLX90316
Evaluation Board
Demonstration Board
VDD
8
1
Vdd
C1
100nF
GND
Vss
MLX90316
Test 1
/SS
C2
100nF
Vdig
Test 2
5
4
SCLK
C3
100nF
OUT
MISO/MOSI
Out
SCLK
/SS
1.3. PCB Drawing
39xx9031601
Rev 001
Top – Copper Layer
Top – Text Layer
Bottom – Copper Layer
Bottom – Text Layer
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Apr. 06
MLX90316
Evaluation Board
Demonstration Board
1.4. Magnetic Knob
The magnetic knob features a small SmCo magnet diametrally magnetized D6H2.5 (Diameter = 6 mm
and Height = 2.5 mm).
1.5. Pictures
Top
Bottom
Top & Magnetic Knob
Bottom & Magnetic Knob
2. Evaluation Board (EVB_MLX90316GO)
2.1. Description
The EVB_MLX90316GO consists into a Printed Circuit Board (PCB) and Magnetic Knob.
•
The PCB implements the recommended application diagram from the MLX90316 datasheet. The
MLX90316GO (Full Redundant Version – TSSOP-16) is mounted on the board. It also includes an
aluminum ring in order to center the magnetic knob (see below) above the sensitive area of
MLX90316. By default, the output transfer characteristics are programmed to get a 10%Vdd ...
90%Vdd analog output swing for 0 … 360 Degrees travel (complete revolution).
•
The magnetic knob features a small SmCo magnet diametrally magnetized D6H2.5 (Diameter = 6 mm
and Height = 2.5 mm).
2.2. Application Diagram
The EVB_MLX90316GO does not feature the Serial Protocol Option. It however enables the evaluation of
the full redundant version of the MLX90316 as there are not any common pins for both dies.
39xx9031601
Rev 001
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Apr. 06
MLX90316
Evaluation Board
Demonstration Board
VDD1
GND1
GND1
C3
100nF
16
1
C1
100nF
C2
100nF
Vdig1
Vss1
OUT1
Out1
Vdd1
C4
100nF
MLX90316
Vdd2
Out2
VDD2
GND2
Vss2
9
8
Vdig2
C5
100nF
C6
100nF
GND2
OUT2
2.3. PCB Drawing
Top – Text Layer
Top – Copper Layer
Bottom – Text Layer
Bottom – Copper Layer
39xx9031601
Rev 001
Page 4 of 6
Apr. 06
MLX90316
Evaluation Board
Demonstration Board
2.4. Magnetic Knob
The magnetic knob features a small SmCo magnet diametrally magnetized D6H2.5 (Diameter = 6 mm
and Height = 2.5 mm).
2.5. Pictures
Top
Bottom
Top & Magnetic Knob
Bottom & Magnetic Knob
3. Demonstration Board (DMB_MLX90316)
3.1. Description
The DMB_MLX90316 consists into a Printed Circuit Board (PCB), Magnetic Knob and a digital voltmeter
(DVM).
•
The PCB implements the same application diagram as the EVB_MLX90316DC. The PCB also features
an aluminum ring in order to center the magnetic knob (see below) above the sensitive area of
MLX90316.The part is programmed to get a 1 V … 4.6 V output swing for 0 … 360 Degrees travel (i.e.
10 mV/Degree). This 3.6 V span is then further measured by the DVM (see below) after a resistive
divider 1 ÷ 10 (final sensitivity = 1 mV/Degree).
•
The magnetic knob features a small SmCo magnet diametrally magnetized D6H2.5 (Diameter = 6 mm
and Height = 2.5 mm).
•
The digital voltmeter: measures 10% (resistive divider 1 ÷ 10) of the output voltage and displays the
value. The reading is in mV or in Degree given the sensitivity of 1 mV/Degree.
39xx9031601
Rev 001
Page 5 of 6
Apr. 06
MLX90316
Evaluation Board
Demonstration Board
The board is either supplied from a 9 V battery or an external supply (+ 9 … + 12 V).
3.2. Pictures
39xx9031601
Rev 001
Page 6 of 6
Apr. 06