SIM802 Hardware Design
5 Electrical, reliability and radio characteristics
5.1 Absolute maximum ratings
Absolute maximum rating for power supply and voltage on digital and analog pins of SIM802 are
listed in table31:
Table 31: Absolute maximum rating
Parameter
Min
Max
Unit
Peak current of power supply
0
3.0
A
RMS current of power supply (during one TDMA- frame)
0
0.7
A
Voltage at digit pins
-0.3
3.3
V
Voltage at analog pins
-0.3
3.0
V
Voltage at digit/analog pins in POWER DOWN mode
-0.25 0.25
V
5.2 Operating temperatures
The operating temperature is listed in table32:
Table 32: SIM802 operating temperature
Parameter
Min
Type
Max
Unit
Ambient temperature
-30
25
80
℃
Restricted operation*
-40 to -30
80 to 85
℃
Storage temperature
-45
90
℃
* SIM802 does work, but the deviation from the GSM specification may occur, For example, the
frequency error or the phase error will be large
5.3 Power supply rating
Table 33: SIM802 power supply rating
Parameter
Description
Conditions
Min Type Max
Unit
Supply voltage
Voltage must stay within the min/max
values, including voltage drop, ripple,
and spikes.
3.4
4.0
4.5
V
VBAT
Voltage drop
during transmit
burst
Normal condition, power control level
for Pout max
400
mV
SIM802_HD_V2.01
12.01.2010
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