LTE Module SeriesEC21 Hardware DesignEC21_Hardware_Design Confidential / Released 69 / 94VBAT_RF min/max values, includingvoltage drop, ripple andspikes.Voltage drop duringburst transmissionMaximum power controllevel on GSM900 400 mVIVBATPeak supply current(during transmissionslot)Maximum power controllevel on GSM900 1.8 2.0 AUSB_VBUS USB detection 3.0 5.0 5.25 V6.3. Operating TemperatureThe operating temperature is listed in the following table.Table 32: Operating TemperatureParameter Min. Typ. Max. UnitOperation Temperature Range1) -35 +25 +75 ºCExtended Temperature Range2) -40 +85 ºC1. 1) Within operation temperature range, the module is 3GPP compliant.2. 2) Within extended temperature range, the module remains the ability to establish and maintain avoice, SMS, data transmission, emergency call, etc. There is no unrecoverable malfunction. Thereare also no effects on radio spectrum and no harm to radio network. Only one or more parameterslike Pout might reduce in their value and exceed the specified tolerances. When the temperaturereturns to the normal operating temperature levels, the module will meet 3GPP specifications again.NOTESQuectelConfidential
