MLX90255 Ver la hoja de datos (PDF) - Melexis Microelectronic Systems
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MLX90255 Datasheet PDF : 5 Pages
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MLX90255
Linear Optical Array
MLX90255 Pin Description
Pin Number
SMD8
1
GLP5
1
2
2
3
3
4
4
5, 6, 7, 8
5
Symbol
Description
SI
Serial Input. SI defines the end of the integration time and the start of the data out
sequence
CLK Clock. The clock controls the charge transfer, pixel output and reset (together with SI)
A0
Analog output
VDD Supply Voltage, for both analog and digital circuits
GND Ground. All GND pins are referenced to the substrate.
Schematics
JP2
2
1
1
CONN PWR 2-H
U2 C78L05/TO92
D4
2POWER 3 IN
OUT 1
1N4001
+ C6
22uF/16V
5V
+ C7
10uF/16V
C8
100n
R2
D2
LED
680
LED
CLK
VOUTB
5V
D3
LED
R4
1k
TP4
SI
1
TEST POINT
TP2
1
VOUTA
TEST POINT
5V
R1
10k
RESETB
XTAL2
CLK
SI
XTAL1
C1
LED
100n
Y1
10MHz
C2
C3
22p
22p
TP3
1
TEST POINT
TP6
1
TEST POINT
5V
C5
100n
U1
1
2
3
4
RESET
Vcc
PD0(RxD) PB7[SCK)
PD1(TxD) PB6[MISO)
20
19
18
17
5
6
XTAL2
XTAL1
PB5(MOSI)
PB4
16
15
7
8
PD2(INT0) PB3(OC1)
PD3(INT1)
PB2
14
13
9
10
PD4(T0)
PD5(T1)
GND
PB1[AIN1)
PB0[AIN0)
PD6(ICP)
12
11
AT90S2313
FREQ4
FREQ3
FREQ2
FREQ1
INT4
INT3
INT2
INT1
5V
TP1
5V Supply
1
TP5
1 GND
SI
5V
CLK
VOUTA
C4
220n
SI
CLK
VOUTB
R5 R3
330 330
JP1
1
2
3
4
5
90255 External
U3
1
2 SI
3
4
5
CLK
VOUT
VDD
VSS
90255 SMD
SW1
1
6
2
5
3
4
SW Freq
SW2
1
6
2
5
3
4
SW Int
Functional Description
The demo board mainly consists of the following
blocks:
• 5V regulator with a power-on indication LED
• general purpose microcontroller with reset
circuitry and crystal oscillator
• 2 rotary DIL switches for changing settings
• a LED which lights up if the chosen settings
are out of the device specification
• 1 on-board MLX90255 sensor (B) and a 5-
pins connector for an external device (A)
• test terminals for all important signals
The different blocks can easily be found in the
schematic diagram.
The main purpose of the demonstration board is
to provide a specified clock frequency and an
MLX90255 Linear Optical Array
Page 2 of 5
Rev 1.0 31-May-01
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