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MLX90308CCC 데이터시트(PDF) 13 Page - Micro Electronics

부품명 MLX90308CCC
상세설명  Programmable Sensor Interface
PDF  26 Pages
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제조업체  MICRO-ELECTRONICS [Micro Electronics]
홈페이지  http://www.microelectr.com.hk
Logo MICRO-ELECTRONICS - Micro Electronics

MLX90308CCC 데이터시트(HTML) 13 Page - Micro Electronics

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MLX902xx Name of Sensor
Rev Y.X
22/Aug/98
Page 13
MLX90308CCC
Programmable Sensor Interface
MLX90308CCC Programmable Sensor Interface
Page 13
Rev 2.2
23/Oct/01
Figure 5.
Alarm Function
OUTPUT
Input Signal
MLX90308
Low
Output
Low
Trigger
High
Trigger
High
Output
Selected input
MUX Value
TPO
0010
IAO
0110
GNO
0000
VMO
0011
IO1
0100
IO2
0101
Table 7. Alarm Source Bit Definition
Figure 6.
Alarm & Steering
Source Points
VMO
CMO
CMN
TSTB
VM
Gain
CM
Offset
Power Supply
Regulation
Temp
Sense
& Amp
Bidirectional
I/O
ADC
&
DAC
UART
Microcontroller
Core, Memory,
EEPROM
Reset,Test,&
Oscillator
OFC
FLT
VDD1 FET VDD GND
COMS
IO2
IO1
TMP
VBN
VBP
IAO
GNO
TPO
Alarm Option
This option allows controlling the low and high limits
of the output (See Figure 5.). The output level is set
when the output tries to exceed the programmed
limits. Five bytes are reserved for this option. The
first byte is the low trigger limit and the second the
low output. The third and fourth bytes are used for
the high limit and the output. The fifth byte is the
alarm control, used to select the alarm input. The
different
levels
are
programmed
as
eight
bit
numbers. These correspond to the 8 upper bits of
the 10 bit signal measurement. When the alarm
mode is not used, all of the data is 0. The control
code is coded as shown in Table 7. The six possible
signals are listed below and are encoded on the 4
MSB’s of byte 31 of the EEPROM.
IO1 & IO2
IO1 and IO2 are used in the alarm and level
steering modes. For custom firmware, they can be
used for a digital input, an analog input, or a digital
Figure 7. Level Steering
Function
IO1, IO2
MLX90308
Level 1
1 -1
1 - 0
0 - 1
0 - 0
(I02,I01)
Level 2
Level 3



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