MLX90313KDF ETC [List of Unclassifed Manufacturers], MLX90313KDF Datasheet - Page 18

• Manufacturer Part Number: MLX90313KDF
• Description: Programmable IR Sensor Interface
• Manufacturer: ETC [List of Unclassifed Manufacturers]

Write access: Only in test mode for both writing directly to internal registers and writing to Eeprom if the
WP register is correctly set.
This register keeps the calibration data for the time constants of digital low pass filters of both channels
(see section Linearisation Unit).
LPF bit functions
Bit
RSEL4
ENOSMB
ENTAV
IROS*
TOS*
LPFIR[2:0]
LPFT[2:0]
ADCREG
Read access: Directly via SPI in all modes.
Write access: Directly to internal register in test mode.
This register keeps the result from last analog to digital conversion..
IROUT
Read access: Directly from internal register.
Write access: Directly to internal register in test mode.
This register keeps the linearised object temperature. (Tobject)
Register format:
D11..D0 :
OVH:
OVL:
FE:
Res
MLX90313 Programmable IR sensor Interface
3901090313
Name
Bit
D11
15
POR
D10
14
12 bit temperature data
Overflow flag for Tambient measurement, Ta>Tamax, D[11:0] set to FFFh
Not used, always zero.
Underflow flag for Tambient measurement, Ta<Tamin, D[11:0] set to 000h
Fatal Error in eeprom.
13
D9
Val
0
0
1
0
1
0
1
0
1
Number of averaged points for IR measurement
00b
01b
10b
11b
100b
Number of averaged points for Temp measurement
00b
01b
10b
11b
100b
12
D8
11
D7
Function
Refer to ADC interface setting
Enable offset measurement of both IR & Temp channels.
Disable offset measurement of both IR &Temp channels.
Reserved for future development. Reset it for all applications.
Reserved for future development. Reset it for all applications.
Number of averaged offset measurements for IR chain: 512
Number of averaged offset measurements for IR chain: 1024
Number of averaged offset measurements for Temp chain: 512
Number of averaged offset measurements for Temp chain: 1024
64
128
256
512
1024
64
128
256
512
1024
10
D6
D5
9
Page 18
D4
8
Programmable IR Sensor Interface
D3
7
D2
6
D1
5
D0
4
OVH
MLX90313
3
Rev 1.0 21-July-2001
OVL
2
FE
1
Res
0