User's Manual

LZT 123 1834 90

10.2 Power supply voltage, normal operation

Parameter Mode Limit

Nominal 3.6 V

Min 3.2 V

Max 4.5 V

Absolute maximum

voltage range

-0.3V to 6.5V

VCC Supply voltage

Maximum supply ripple

<100mV @<200kHz

<20mV @>200kHz

Maximum allowable voltage drop Transmission burst 200mV

Maximum current consumed Full power (2W) transmit 2250 mA (peak)

2100 mA (avg)

Stresses in excess of the absolute maximum limits can cause permanent

damage to the device. These are absolute stress ratings only. Functional

operation of the device is not implied at these or any other conditions in

excess of those given in the normal Min & Max values stated. Exposure

to absolute maximum ratings for extended periods can adversely affect

device reliability.

10.3 Radio specifications

Feature GSM850 E-GSM900 GSM1800 GSM1900

Frequency range (MHz)

824-894 880-960 1710-1880 1850-1990

Maximum power 33dBm (2W)

33dBm (2W)

30dBm (1W)

Antenna impedance 50 ohms

10.4 SIM card

Parameter 1.8V 3.0V 5.0V

External SIM support Yes Yes No

Integrated SIM support (optional) Yes Yes No

WARNING