User's Manual

GM28 INTEGRATOR’S MANUAL
46
LZT 123 7468 P1A
The power consumption in Standby Mode is measured at the maximum
paging rate.
Radio Specifications
Audio Specifications
SIM Card Reader
Frequency range GM28: GSM 850MHz and 1900MHz (dual band)
Maximum RF output
power
2W (850MHz) and 1W (1900MHz)
Antenna impedance 50:
Static sensitivity Better than –102dBm
E-OTD Currently unsupported in GM28
Parameter Limit
Output level (differential) t 4.0V
pp
Output level (dynamic load = 32:) t 2.8V
pp
Distortion at 1kHz and maximum output level d5%
Offset, BEARP to BEARN ±30mV
Ear-piece mute-switch attenuation t 40dB
Ear piece model Impedance Tolerance
Dynamic ear piece [32:+ 800µH] // 100pF ±20%
Dynamic ear piece [150:+ 800µH] // 100pF ±20%
Piezo ear piece 1k:+ 60nF ±20%
Voltage type Support for 3 V and 5 V SIM cards