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LARA-R6401D 数据表(PDF) 27 Page - u-blox AG |
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LARA-R6401D 数据表(HTML) 27 Page - u-blox AG |
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27 / 41 page  LARA-R6 series - Data sheet UBX-21004391 - R09 Electrical specifications Page 27 of 41 C1-Public 4.2.7 2G RF characteristics The 2G bands supported by LARA-R6 series modules are defined in Table 3, while Table 19 describes Transmitting and Receiving frequencies for each 2G band according to 3GPP TS 51.010-1 [12]. Parameter Min Max Unit Remarks Frequency range GSM 850 Uplink 824 849 MHz Module transmits Downlink 869 894 MHz Module receives Frequency range E-GSM 900 Uplink 880 915 MHz Module transmits Downlink 925 960 MHz Module receives Frequency range DCS 1800 Uplink 1710 1785 MHz Module transmits Downlink 1805 1880 MHz Module receives Frequency range PCS 1900 Uplink 1850 1910 MHz Module transmits Downlink 1930 1990 MHz Module receives Table 19: 2G operating RF frequency bands LARA-R6 series modules include a GMSK Power Class 4 transmitter for 850 / 900 MHz bands, GMSK Power Class 1 transmitter for 1800 / 1900 MHz bands, 8-PSK Power Class E2 transmitter for all 2G bands (see Table 3), with output power and characteristics according to 3GPP TS 51.010-1 [12]. LARA-R6 series modules 2G receiver characteristics are compliant to 3GPP TS 51.010-1 [12], with conducted receiver sensitivity performance described in Table 20. Parameter Min. Typical Max. Unit Remarks Receiver input sensitivity E-GSM 850 –110 dBm Downlink RF level @ BER Class II < 2.4% Receiver input sensitivity E-GSM 900 –110 dBm Downlink RF level @ BER Class II < 2.4% Receiver input sensitivity E-GSM 1800 –109 dBm Downlink RF level @ BER Class II < 2.4% Receiver input sensitivity DCS 1900 –109 dBm Downlink RF level @ BER Class II < 2.4% Condition: 50 , other settings as per clause 14.2.1 of 3GPP TS 51.010-1 [12] Table 20: 2G receiver sensitivity performance 4.2.8 ANT_DET pin Parameter Min. Typ. Max. Unit Remarks Output DC current pulse value 35 µ A Generated by means of the +UANTR AT command Output DC current pulse time length 1160 µ s Generated by means of the +UANTR AT command Table 21: ANT_DET pin characteristics 4.2.9 PWR_ON pin Parameter Min. Typical Max. Unit Remarks Internal supply for PWR_ON Input Signal 1.8 V The PWR_ON input is pulled up to an internal voltage rail minus a diode drop: the voltage value present at PWR_ON input pin is normally 0.8 V typical. Low-level input -0.30 0.35 V Pull-up resistance 150 200 250 k Internal active pull-up Input leakage current -0.20 0.20 µ A PWR_ON low time 0.15 3.20 s Low time to trigger module switch on from power off mode 1.50 s Low time to trigger module graceful switch off Table 22: PWR_ON pin characteristics |
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