User's Manual
M590 GPRS Module Hardware User Guide
Copyright © Neoway Technology Co., Ltd
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4.3 Current
Table 4-3 Current feature
Parameter Testing Conditions
Testing Result
(Average Current)
Testing voltage
3.9 V Agilent power supply
/
Idle mode Set the instrument and power on the module.
18mA
Off leakage current
Power on the module or use AT command to shut
the module down.
50uA
Average network
searching current
Set the instrument
.
Start the module. Wait until the module registers the
instrument.
60mA
Sleep mode
On a live network, the module registers the network
and then enters the sleep mode.
1.7mA
Set the instrument properly (DRX=9)
1 mA
Voice service
Maximum power level in full rate
mode
EGSM900 197.8mA
DCS1800 152.6mA
GPRS class 12
4Up/1Down@Gamma=3
EGSM900 417.6mA
DCS1800 303.1mA
1Up/4Down@Gamma=3
EGSM900 186.8 mA
DCS1800
144.2mA
The data in the above table is typical values obtained during tests in lab. It might be a little bit different in
manufacturing. Also, the test results might be various due to different settings or testing methods.
4.4 ESDProtection
Electronics need to pass sever ESD tests. The following table shows the ESD capability of key pins of our
module. It is recommended that you add ESD protection to those pins in accordance to the application to
ensure your product quality when designing your products.
Humility: 45%
Temperature: 25℃
Table 4-4 ESD feature of the module
Testing Point Contact Discharge Air Discharge
VBAT ±8KV ±15KV
GND ±8KV ±15KV