MLX90621 datasheet(15/44 Pages) MELEXIS

номер детали	MLX90621

подробное описание детали	16x4 IR array

PDF	44 Pages

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производитель	MELEXIS [Melexis Microelectronic Systems]

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15 / 44 page

MLX90621

16x4 IR array

Datasheet

39001090621

Page 15 of 44

Datasheet IR16x4

Rev 3.0

15 September 2016

Example for Ta calculations

7.3.2.

Let’s assume that the values in EEPROM are as follows

(Derived using maximum resolution – ConfigRegister[5:4] = 11b):

EEPROM address

Cell name

Cell values

(hex)

0xDA

VTH_L

0x20

0xDB

VTH_H

0x64

0xDC

KT1_L

0x89

0xDD

KT1_H

0x55

0xDE

KT2_L

0x7E

0xDF

KT2_H

0x5E

0xD2

KT_scale

0x8B

Table 6 EXAMPLE for Ta calibration values

Let’s assume that the maximum resolution is set in the configuration register:

ConfigRegister[5:4] = 11b

92:(25) 256 ∗92:_: 4 92:_. 256 ∗ 1004 32 25632

Sign check:

25632 X 32768 → 92:(25) 25632

92:(25)

2DEFGHIJKL-K8M:N=

25632

2DED 25632

123 256 ∗ 123Z 4 123[ 256 ∗85 4 137 21897

Sign check:

21897 X 32768 → 123 21897

123

2OOLPQ(RST68U:N= ∗ 2DEFGHIJKL-K8M:N=

21897

2] ∗ 2DED 85.53515625

126 256 ∗ 126Z 4 126[ 256 ∗94 4 126 24190

Sign check:

24190 X 32768 → 126 24190

126

_`a

6bbcdefghia8j:g=klg∗6jmnopqrscts8u:v=

6N3wR

6llklg∗6jmj 0.01153469085

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