User's Manual

User manual of 3G SEP EVDO module
Page 30
4. ELECTRICAL SPECIFICATIONS
Five system operating states are defined:
 NO SUPPLY: No power voltage is present.
 OFF: Main power voltage is present.
 ACTIVE: Main power voltage is present Internal power supplies are on.
 SLEEP: Main power voltage is present Internal power supplies are in the
low power mode.
If not specified, all electrical values are given for the active state at
VPH_PWR=4.0V and an operating temperature of 25°C.
4.1 VPH PWR
The module is supplied through the VPH_PWR with the following
characteristics:
Parameter Name Min. Typ. Max.
VPH_PWR maximum
voltage (V)
VPH_PWR (*) - -
4.2
VPH_PWR minimum voltage
(V)
VPH_PWR (*) 3.4 - -
VPH_PWR drop voltage
(mV)
DeltaVbat (*) - - 300 (**)
Transient voltage (V) TBD - -
Noise level
(Vrms)@100KHz-1MHz
- - 50mV
* See Application Notes for more details.
** This value depends on the power supply serial resistor (plus contact and
track serial resistors)
4.2 VBACKUP
Parameter Min. Typ. Max
.
Remarks
Voltage level(V) 1.2 3 3.25