EVB90109_12 Datasheet, PDF (9/10 Pages) Melexis Microelectronic Systems – MLX90109 Evaluation Board

EVB90109
MLX90109 Evaluation Board
5 Pinning of the EVB90109
Pin number DIL-10
1
2
3
4
5
6
7
8
9
10
Name
COIL
VSS
SPEED
FAST_DECAY
MODUR3
MODUR2
MODE
CLOCK
DATA
VDD
Description
Oscillator Output
Ground
Data rate selection
Fast decay circuit control
Modulation Network
Modulation Network
Decoding selection
Clock signal
Decoded data
Power Supply
Table 2: Pinning of the EVB90109
6 Components
Reference
R1
R2
R3
C1
C2
C3
C4
Value
39 kohms
8.2 kohms
Not mounted
Not mounted
Not mounted
Not mounted
22nF
Description
Modulation network
Modulation network
Additional resistor for the modulation network
Noise cancellation capacitance
Additional capacitance for the modulation network
Additional capacitance for the modulation network
Tune capacitance
Table 3: Components
Reference
L1
Qant
Zant
Value¹⁾
73.7
25
1447
Units
µH
kOhm
Description
Coil inductance
Coil quality factor
Antenna Impedance, calculated = ω₀*L_ant*Q_ant
Table 4: Reader Coil L1 Electrical Specifications
Reference
H
OD
ID
Nr
Value¹⁾
3
18.9
17
52
Units
mm
mm
mm
-
Description
Coil height
Outside diameter
Inside diameter
Number of turns
Table 5: Reader Coil L1 Physical Specifications
1) _{Typical value at 125kHz}
390129010901
Rev 006
Page 9 of 10
Evaluation Board
Aug-2012