전자부품 데이터시트 검색엔진 |
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E-GSM900 데이터시트(PDF) 11 Page - Silicon Laboratories |
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E-GSM900 데이터시트(HTML) 11 Page - Silicon Laboratories |
11 / 38 page Aero I Rev. 1.0 11 Table 6. Transmitter Characteristics (VDD = 2.7 to 3.0 V, TA = –20 to 85 °C) Parameter Symbol Test Condition Min Typ Max Unit RFOG Output Frequency1 GSM 850 band 824 — 849 MHz E-GSM 900 band 880 — 915 MHz RFOD Output Frequency2 DCS 1800 band 1710 — 1785 MHz PCS 1900 band 1850 — 1910 MHz I/Q Differential Input Swing3,4 0.88 — 2.2 VPPD I/Q Input Common-Mode3 1.1 — 1.4 V I/Q Differential Input Resistance3,4 BBG[1:0] = 11b 26 30 35 k Ω BBG[1:0] = 00b 22 25 29 k Ω BBG[1:0] = 01b 17 20 23 k Ω Powered down — Hi-Z — k Ω I/Q Input Capacitance3,5 —— 5 pF I/Q Input Bias Current3 13 16 19 µA Sideband Suppression 67.7 kHz sinusoid — –46 –34 dBc Carrier Suppression 67.7 kHz sinusoid — –48 –33 dBc IM3 Suppression 67.7 kHz sinusoid — –57 –50 dBc Phase Error5 —1.9 3.0 o rms —5 10 o PEAK TXVCO Pushing1,2 Open loop — 100 — kHz/V TXVCO Pulling1,2 VSWR 2:1, all phases, open loop —200 — kHzPP RFOG Output Modulation Spectrum1,6 400 kHz offset — –65 –63 dBc 1.8 MHz offset — –70 –68 dBc RFOD Output Modulation Spectrum2,6 400 kHz offset — –65 –63 dBc 1.8 MHz offset — –70 –65 dBc RFOG Output Phase Noise1,5,7 10 MHz offset — –160 –155 dBc/Hz 20 MHz offset — –166 –164 dBc/Hz RFOD Output Phase Noise2,5,7 20 MHz offset — –163 –157 dBc/Hz RFOG Output Power Level1 ZL = 50 Ω 79 11 dBm RFOD Output Power Level2 ZL = 50 Ω 68 10 dBm |
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