SARA-R412M datasheet(26/43 Pages) U-BLOX

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SARA-R4 series - Data sheet

UBX-16024152 - R18

Electrical specifications

Page 26 of 43

4.2.6 2G RF characteristics

The 2G bands supported by SARA-R4 series modules are defined in the Table 2, while the following

Table 16 describes the Transmitting and Receiving frequencies according to 3GPP TS 51.010-1 [9].

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 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 [9].

SARA-R4 series modules 2G receiver characteristics are compliant to 3GPP TS 51.010-1 [9], 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

Output DC current pulse time length

1160

Table 18: ANT_DET pin characteristics

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