User's Manual

Smart Machine Smart Decision
SIM5320_Hardware Design_V1.01 2011-11-10
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5 Reliability and Operating Characteristics
5.1 Electronic Characteristics
Absolute maximum rating for digital and analog pins of SIM5320AD are listed in the following table:
Table 28: Absolute maximum ratings
Parameter Min Max Unit
Voltage at digital pins (1.8v mode) -0.3 1.8+0.3 V
Voltage at digital pins (2.6v mode) -0.3 2.6+0.3 V
Voltage at VBAT -0.5 6.0 V
Voltage at VRTC 1.5 3.2 V
Voltage at USB_VBUS -0.5 6.0 V
Table 29: Recommended operating ratings
Parameter Min Typ Max Unit
Voltage at digital pins (1.8v mode) 1.65 1.8 1.95 V
Voltage at digital pins (2.6v mode) 2.5 2.6 2.7 V
Voltage at VBAT 3.3 3.8 4.2 V
Voltage at VRTC 1.5 - 3.0 V
Voltage at USB_VBUS 4.75 5 5.25 V
The operating temperature and power specification is listed in the following table.
Table 30: Operating temperature
Parameter Min Typ Max Unit
Ambient temperature -30 25 80 ℃
Storage temperature -40 25 +85 ℃
Note: SIMCom recommends user to install a heat sink on the module shielding case if SIM5320AD operates in WCDMA
band.
5.2 Operating Mode
The following table summarizes the various operating modes, each operating modes will be referred to in
the following chapters.