Nokia NSE–3 SERIES Service Manual

Contents

Nokia NSE–3 SERIES Service Manual Manual pdf 64 page image

PAMSTechnical DocumentationNSE–3System ModuleOriginal 11/97Page 3 – 58UHF VCO moduleParameter Conditions Rating Unit/NotesSupply voltage, Vcc 2.8 +/– 0.1 VSupply current, Icc Vcc = 2.8 V,Vc= 2.25 V< 10 mAControl voltage, Vc Vcc = 2.8 V 0.8... 3.7 VOscillation frequency Vcc = 2.8 VVc = 0.8 VVc = 3.7 V< 1006> 1031MHzMHzTuning voltage in center frequency f = 1018.5 MHz 2.25 +/– 0.25 VTuning voltage sensitivity in operatingfrequency range on each spot freq.Vcc = 2.8 Vf=1006...1031MHz14 +/– 2 MHz/VOutput power level Vcc=2.7 Vf=1006...1031MHz–6.0 min. dBmUHF local signal input in CRFU_1aParameter Min. Typ. Max. Unit/NotesInput frequency range 990 1040 MHzInput level 200 700 mVppConnectionsRF connector and antenna switchParameter Min. Typ. Max. Unit/NotesOperating frequency range 890 960 MHzInsertion loss, COM to INT 0.2 dBInsertion loss, COM to EXT 0.4 dBNominal impedance 50 ohmReturn loss 15SignalnameFrom To Parameter Mini-mumTypi-calMaxi-mumUnit FunctionVBATT Battery RF Voltage 3.0 3.6 5.0/6.0 V Supply voltage forRFVXOE-NAMAD CCONT Logic high ”1” 2.0 2.85 V VR1, VR6 inCCONT ONLogic low ”0” 0 0.8 V VR1, VR6 inCCONT OFF