User's Manual

Preliminary Rev 0.6 December 10, 2010 12
4. RF Specification
The section presents the RF interface of the AirPrime AR series intelligent embedded module. The
specifications for the CDMA and GSM/WCDMA interfaces are defined.
4.1. GSM/WCDMA Interface
This section presents the GSM/GPRS/EDGE/WCDMA RF Specification for the AirPrime AR8550 and
AR8552.
4.1.1. GSM/WCDMA Antenna Interface
The specification for the GSM/WCDMA Antenna Interface is defined in the table below.
Table 9: GSM/WCDMA antenna characteristics – AR8550
Characteristics GSM900
GSM850 –
WCDMA
Band V
GSM1800
GSM1900 –
WCDMA
Band II
WCDMA
Band IV
Frequency
(MHz)
TX 880 – 915 824-849 1710 – 1785 1850-1910 1710 – 1755
RX 925 – 960 869-894 1805 – 1880 1930-1990 2110 – 2155
Impedance RF 50 Ohm
VSWR max
RX 1.5: 1
TX 1.5: 1
Maximum Voltage
Primary Antenna – 30 Volts
Diversity Antenna – 25 Volts
Table 10: GSM/WCDMA antenna characteristics – AR8552
Characteristics
GSM900 –
WCDMA
Band VIII
GSM850 –
WCDMA
Band VI
GSM1800 GSM1900
WCDMA
Band I
Frequency
(MHz)
TX 880 – 915 824-849 1710 – 1785 1850-1910 1920 – 1980
RX 925 – 960 869-894 1805 – 1880 1930-1990 2110 – 2170
Impedance RF 50 Ohm
VSWR max
RX 1.5: 1
TX 1.5: 1
Maximum Voltage
Primary Antenna – 30 Volts
Diversity Antenna – 25 Volts