User's Manual

M80 Hardware Design
M80_HD_V1.2 - 79 -
@power level #19,Typical 118mA
EGSM 900
@power level #5 <660mA,Typical 560mA
@power level #12,Typical 215mA
@power level #19,Typical 114mA
DCS 1800
@power level #0 <530mA,Typical 420mA
@power level #7,Typical 173mA
@power level #15,Typical 97mA
PCS 1900
@power level #0 <530mA,Typical 470mA
@power level #7,Typical 192mA
@power level #15,Typical 101mA
Note: GPRS Class 12 is the default setting. The module can be configured from GPRS Class 1
to Class 12 by “AT+QGPCLASS”. Setting to lower GPRS class would make it easier to design
the power supply for the module.
5.5. Electro-static discharge
Although the GSM engine is generally protected against Electrostatic Discharge (ESD), ESD
protection precautions should still be emphasized. Proper ESD handling and packaging procedures
must be applied throughout the processing, handling and operation of any applications using the
module.
The measured ESD values of module are shown in the following table.
Table 37: The ESD endurance (Temperature:25℃,Humidity:45 %)
Tested point
Contact
discharge
Air discharge
VBAT,GND
±5KV
±10KV
RF_ANT
±5KV
±10KV
PWRKEY
STATUS
±4KV
±8KV
SIM1_VDD, SIM1_DATA
SIM1_CLK, SIM1_RST
±4KV
±8KV
TXD, RXD
RTS, CTS, DTR
±4KV
±8KV
Others
±0.5KV
±1KV