unicore UM980 - IO Threshold; Antenna Feature

11
Parameter
Symbol
Min.
Typ.
Max.
Unit
Condition
Working Current
9
I
opr
145
180
mA
VCC=3.3 V
VCC_RF Output Voltage
VCC_RF
VCC-0.1
V
VCC_RF Output Current
ICC_RF
50
mA
Operating Temperature
T
opr
-40
85
°C
Power Consumption
P
480
mW
2.2.3 IO Threshold
Table 2-4 IO Threshold
Parameter
Symbol
Min.
Typ.
Max.
Unit
Condition
Low Level
Input Voltage
V
in_low
0
0.6
V
High Level
Input Voltage
V
in_high
VCC × 0.7
VCC + 0.2
V
Low Level
Output Voltage
V
out_low
0
0.45
V
I
out
= 2 mA
High Level
Output Voltage
V
out_high
VCC -
0.45
VCC
V
I
out
= 2 mA
2.2.4 Antenna Feature
Table 2-5 Antenna Feature
Parameter
Symbol
Min.
Typ.
Max.
Unit
Condition
Optimum Input
Gain
G
ant
18
30
36
dB
9
Since the product has capacitors inside, inrush current occurs during power-on. You should evaluate
in the actual environment in order to check the effect of the supply voltage drop caused by inrush
current in the system.