Data Sheet

SARA-R4/N4 series - Data Sheet
UBX-16024152 - R16 Electrical specifications Page 25 of 39
4.2.6 2G RF characteristics
The 2G bands supported by SARA-R4/N4 series modules are defined in Table 2, while the following
Table 16 describes the Transmitting and Receiving frequencies according to 3GPP TS 51.010-1 [8].
Parameter
Min
Max
Unit
Remarks
Frequency range
GSM 850
Uplink
824
849
MHz
Module transmit
Downlink
869
894
MHz
Module receive
Frequency range
E-GSM 900
Uplink
880
915
MHz
Module transmit
Downlink
925
960
MHz
Module receive
Frequency range
DCS 1800
Uplink
1710
1785
MHz
Module transmit
Downlink
1805
1880
MHz
Module receive
Frequency range
PCS 1900
Uplink
1850
1910
MHz
Module transmit
Downlink
1930
1990
MHz
Module receive
Table 16: 2G operating RF frequency bands
SARA-R4/N4 series modules include a GMSK Power Class 4 transmitter for GSM 850 and E-GSM 900
bands, a GMSK Power Class 1 transmitter for DCS 1800 and PCS 1900 bands, a 8-PSK Power Class E2
transmitter for all 2G bands (see Table 2), with output power and characteristics according to 3GPP
TS 51.010-1 [8].
SARA-R4/N4 series modules 2G receiver characteristics are compliant to 3GPP TS 51.010-1 [8], with
conducted receiver sensitivity performance described in Table 17.
Parameter
Min
Typical
Max
Unit
Remarks
Receiver input sensitivity
GSM 850
-109
dBm
Downlink RF level @ BER Class II < 2.4 %
Receiver input sensitivity
E-GSM 900
-109
dBm
Downlink RF level @ BER Class II < 2.4 %
Receiver input sensitivity
DCS 1800
-109
dBm
Downlink RF level @ BER Class II < 2.4 %
Receiver input sensitivity
PCS 1900
-109
dBm
Downlink RF level @ BER Class II < 2.4 %
Condition: 50  source
Table 17: 2G receiver sensitivity performance
4.2.7 ANT_DET pin characteristics
Pin Name
Parameter
Min.
Typ.
Max.
Unit
Remarks
ANT_DET
Output DC current pulse value
35
µA
Output DC current pulse time length
1160
µs
Table 18: ANT_DET pin characteristics