EVB90620 Datasheet, PDF (13/39 Pages) Melexis Microelectronic Systems – High precision non-contact temperature measurements

MLX90620
16x4 IR array
- Single line read
Slave address
Command
SDA
S1 1 0 0 0 0 0 WA 0 0 0 0 0 0 1 0 A
SCL
Start address
Address step
Number of reads
Slave address
A 0 0 0 0 0 1 0 0 A 0 0 0 1 0 0 0 0 A S1 1 0 0 0 0 0 R A
IR pixel(line, 0)
LSByte
A
IR pixel(line, 0)
MSByte
A
IR pixel(line, 1)
LSByte
IR pixel(line, 1)
MSByte
A
IR pixel(line, 15)
LSByte
IR pixel(line, 15)
MSByte
A
A
AP
Figure 12 Single line (SA = 0x60, command = 0x02, Start address = 0x00…0x03 (step 0x01),
Address step = 0x04, Number of reads = 0x10) measurement result read
- Single pixel read
Slave address
Command
SDA
S1 1 0 0 0 0 0 WA 0 0 0 0 0 0 1 0 A
Start address
Address step
Number of reads
Slave address
A 0 0 0 0 0 0 0 0 A 0 0 0 0 0 0 0 1 A S1 1 0 0 0 0 0 R A
IR pixel data
LSByte
A
IR pixel data
MSByte
AP
SCL
Figure 13 Single pixel (SA = 0x60, command = 0x02, Start address = 0x00…0x3F,
Address step = 0x00, Number of reads = 0x01) measurement result read
- Compensation pixel read
Slave address
Command
Start address
Address step
Number of reads
Slave address
SDA
S1 1 0 0 0 0 0 WA 0 0 0 0 0 0 1 0 A 1 0 0 1 0 0 0 1 A 0 0 0 0 0 0 0 0 A 0 0 0 0 0 0 0 1 A S1 1 0 0 0 0 0 R A
PTAT data
LSByte
A
PTAT data
MSByte
AP
SCL
Figure 14 Compensation pixel (SA = 0x60, command = 0x02, Start address = 0x91,
Address step = 0x00, Number of reads = 0x01) measurement result read
The 16bit data for each pixel is:
IR(i, j) _ data {IR(i, j) _ data _ MSbyte: IR(i, j) _ data _ LSbyte}
3001090620
Rev 4.0
Page 13 of 40
Datasheet IR16x4
19 September 2012