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U3550BM-AFLG3 Datasheet(PDF) 10 Page - TEMIC Semiconductors |
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U3550BM-AFLG3 Datasheet(HTML) 10 Page - TEMIC Semiconductors |
10 / 25 page U3550BM Rev. A2, 10-Sep-98 Preliminary Information 10 (25) Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Spurious at RFO output (delta versus carrier) a/ Fb6: fRFO = 26.375 MHz b/ US1h9: FRFO = 49.99 MHz (3) Df = ±2.5 kHz Df = ±12.5 kHz Df = ±557.5 kHz Df = ±1/2 fmod Df = ± fmod for VS = 3.1 to 5.2 V 60 dBc VTX output capability ILOAD = 3 mA DV with and without load 0.5 V VTX output leakage current ETXO = 0; current to GND 1 mA PLLs VS = 3.1 to 5.2 V Charge-pump output voltage EVCO1 =1, output high 2.38 2.5 2.63 V Precharge voltage at the loop filter EVCO3 = 1 EVCO1 = 0 1.15 1.4 1.65 V Charge-pump output current in speed-up mode EVCO1 = 1 VMLF = 1.25 V, output high –400 –300 –200 mA Charge-pump output current VMLF = 1.25 V, output low 4.3 6.2 8 mA gp p p VMLF = 1.25 V, output high –8 –6.2 –4.3 mA Charge-pump leakage current VMLF = 1.25 V, output tristate –100 +100 nA VCO1 gain VMLF = 0 V, then 2.5 V 121 140 156 kHz/V Receiver input mixer (Mixer 1) Input frequency range EVCO3 = 1 20 50 MHz Output frequency 10.7 MHz Input resistance 2.4 3.0 3.6 k W Input capacitor 3 3.5 4 pF Output impedance M1CP = 0 M1CP = 1 210 50 330 80 390 110 W W Voltage gain on MIXO M1CP = 0 M1CP = 1 for: Fb8: fLO = 30.7 MHz FRF11 = 20 MHz UDM1 = 1 Fb8: fLO = 30.7 MHz FRF21 = 41.4 MHz UDM1 = 0 US1h10: fLO = 57.67 MHz FRF31 = 46.97 MHz UDM1 = 1 for VS = 3.1 to 5.2 V 9.5 14 12.5 17 15.5 20 dB dB Noise figure BW = 1 MHz 50- W input impedance 14 18 dB Input compression point M1CP = 0 M1CP = 1 50- W input impedance –19 –16 –17.7 –14.3 dBm dBm |
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