10.2 Power supply voltage, normal operation

 

 

Parameter

 

 

Mode

 

 

Limit

 

 

 

 

 

 

 

 

 

 

 

VCC Supply voltage

 

 

Nominal

 

 

3.6 V

 

 

 

 

 

Min

 

 

3.2 V

 

 

 

 

 

Max

 

 

4.5 V

 

 

 

 

 

Absolute maximum limit

 

 

-0.3V to 6.5V

 

 

 

 

 

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)

 

 

 

 

 

 

 

 

!

WARNING

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 operational sections of the data sheet. 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)

 

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

LZT 123 1836

87