Specifications

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3.4.1 Environmental Conditions for
Evervision LCD Panel
Our resistive touch screen device we purchased has many environmental
conditions to consider. They include storage temperature and operating ambient
temperature. Storage temperature has a min value of -30º Celsius and a max
value of 80º Celsius. For the operating ambient temperature parameter it
functions by having a min value of -20º Celsius and a max value of 70º Celsius.
Some primary states that involve temperature and relative humidity range from
90% max RH when the ambient temp is ≤ to 40º Celsius. Table 27 describes the
environmental conditions that must be followed when dealing with the Evervision
7” LCD with touch screen interface.
Item
Symbol
Minimum
Maximum
Unit
Storage Temp
T
ST
-30
+80
˚C
Operating Ambient Temp
T
OP
-20
+70
˚C
Table 27 Environmental conditions that must be followed when dealing
with the Evervision 7” LCD with touch screen interface.
3.4.2 Electrical Characteristics
The most important specifications that we must follow when dealing with the
Evervision 7” LCD screen are the electrical characteristics. These characteristics
include but are not limited to, digital power supply voltage, power supply current,
input high threshold voltage, input low threshold voltage, and power
consumption. Table 28 shown below describes how much power, voltage, and
frequency will be needed to operate our 7” Evervision LCD Panel.
Item
Minimum Value
Maximum Value
Unit
Power Supply
Voltage
3.0
3.6
V
Power Supply
Current
-
585
mA
Power Consumption
-
1.931
W
VSYNC Frequency
-
75
Hz
HSYNC Frequency
-
39.2
KHz
DCLK Frequency
-
40
MHz
Input High Threshold
Voltage
0.7VCC
VCC
V
Table 28 This figure tells us how much power, voltage, and frequency will
be needed to operate our 7 inch Evervision LCD Panel.