Hardware Design - Rainbow Technologies

SIM300DZ Hardware Design5 Electrical, reliability and radio characteristics5.1 Absolute maximum ratingsAbsolute maximum rating for power supply and voltage on digital and analog pins of SIM300DZare list in table26:Table 26: Absolute maximum ratingParameter Min Max UnitPeak current of power supply 0 4.0 ARMS current of power supply (during one TDMA- frame) 0 0.7 AVoltage at digit pins -0.3 3.3 VVoltage at analog pins -0.3 3.0 VVoltage at digit/analog pins in POWER DOWN mode -0.25 0.25 V5.2 Operating temperaturesThe operating temperature is listed in table26:Table 27: SIM300DZ operating temperatureParameter Min Typ Max UnitAmbient temperature -20 25 55 ℃Restricted operation* -30 to -20 55 to 80 ℃Storage temperature -40 +85 ℃* SIM300DZ can work, but the deviation from the GSM specification may occur.5.3 Power supply ratingTable 28: SIM300DZ power supply ratingParameter Description Conditions Min Typ Max UnitVBAT Supply voltage Voltage must stay within the min/maxvalues, including voltage drop, ripple,and spikes.3.4 4.0 4.5 VVoltage dropduring transmitburstNormal condition, power control levelfor Pout max400 mVSIM300DZ_HD_V2.03 5010.01.2007