Telit Wireless Solutions HE910-EU V2, Hardware User'S Manual

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The power supply circuitry and board layout are a very important part in the full product
design and they strongly reflect on the product’s overall performance. Read carefully the
requirements and the guidelines that follow for a proper design.
The external power supply must be connected to VBATT & VBATT_PA signals and must
fulfill the following requirements:
Power Supply
Nominal Supply Voltage 3.8V
Normal Operating Voltage Range 3.4V ~ 4.2V
Extended Operating Voltage Range 3.3V ~ 4.5V
HE910 V2
Mode Average(mA) Mode Description
SWITCHED OFF
Module supplied but Switched Off
Switched Off 30uA (*
1
)
IDLE mode Standby mode; no call in progress
AT+CFUN=1
WCDMA 15
Normal mode; full functionality of the module
GSM 15
AT+CFUN=4
WCDMA 13
Disabled TX and RX; modules is not registered on the
network
GSM 13
AT+CFUN=0 or
AT+CFUN=5
WCDMA
3.2 (512frame)
1.0 (64frame) (*
2
)
Power saving; CFUN=0 module registered on the
network and can receive voice call or an SMS; but it is
not possible to send AT commands; module wakes up
with an unsolicited code (call or SMS) or rising RTS
line.
CFN=5 full functionality with power saving;
Module registered on the network can receive
incoming call sand SMS
GSM
3.2 (DRX2)
1.7 (DRX5)
1.3 (DRX9) (*
2
)
GPRS 1.7 (DRX5) (*
3
)
WCDMA TX and RX mode Operating mode
WCDMA Voice 630 WCDMA voice channel
HSPA 640 HSPA data channel
GSM TX and RX mode Operating mode
GSM Voice(CSD)
230 GSM850/GSM900
185 DCS1800/PCS1900
GPRS 2TX/3RX
390 GSM850/GSM900, class10
300 DCS1800/PCS1900, class10