Incazelo
Isingeniso esifushane
Lolu uhlobo olulula kakhulu lwesidluliseli se-FM, esikwazi ukudlulisa umculo osakazwayo noma izwi ebangeni elingafika kumamitha angama-50, kuya ngohlobo lwe-antenna esetshenzisiwe. Isistimu isebenza ngaphandle kokushuna futhi ikristalu ye-quartz esetshenzisiwe ikhiyiwe kubukhulu obungu-90MHz. Lolu hlelo luqeda ukukhukhuleka, umphumela ovamile wezinhlelo zokudlulisa ezisekelwe ku-LC zesimanje.
Izingxenye Nezimfuneko
I-AE1, 1 I-antenna Connector_Wire:I-SolderWire-0.1sqmm_1x01_D0.4mm_OD1mm I-Antenna
C1, 1 piece 10u, 35V CP1_Small Capacitor_SMD:C_0805_2012Metric Polarized capacitor, uphawu oluncane lwase-US
C2, 1 100u 35V CP1_Small Capacitor_SMD:C_0805_2012Metric Polarized capacitor, uphawu oluncane lwase-US
C3, 1 330p C_Small Capacitor_SMD:C_0805_2012Metric Unpolarized capacitor, uphawu oluncane
C4, C6, 2 100n C_Small Capacitor_SMD:C_0805_2012Metric Unpolarized capacitor, uphawu oluncane
C5, 1 33p C_Small Capacitor_SMD:C_0805_2012Metric Unpolarized capacitor, uphawu oluncane
D1, 1 1SV149 D_Capacitance Diode_SMD:D_0805_2012Metric Varactor Diode
J1, 1 AudioJack2 AudioJack2 Connector_Coaxial:U.FL_Hirose_U.FL-R-SMT-1_Vertical Audio Jack, 2 pole (Mono / TS)
J2, 1 12V ibhethri. I-Conn_01x02 Isixhumi_I-PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Isixhumi Esiqondile Somhlaba Wonke, umugqa owodwa, 01×02, ukukhiqizwa kombhalo (kicad-library-utils/schlib/autogen/connector/)
L1, 1 L_Small L_Small Inductor_SMD: L_0805_2012Metric Inductor, uphawu oluncane
Q1, 1 PN2222A PN2222A Package_TO_SOT_SMD: SOT-323_SC-70_Handsolding 1A Ic, 40V Vce, NPN Transistor, Universal Transistor, TO-92
R1, 1 330E R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, uphawu oluncane lwase-US
R2, 1 100K R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, uphawu oluncane lwase-US
R3, 1 10K R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, uphawu oluncane lwase-US
R4, 1 4.7K R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, uphawu oluncane lwase-US
R5, 1 150E R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, uphawu oluncane lwase-US
RV1, 1 10K R_POT_US I-Potentiometer_THT:Potentiometer_Bourns_3266W_Vertical Potentiometer, uphawu lwase-US
I-U1, 1 LM386 LM386 Iphakheji_TO_SOT_SMD:SC-70-8 isikhulisi samandla omsindo we-voltage ephansi, i-DIP-8/SOIC-8/SSOP-8
Y1, 1 30MHz Crystal_Small Crystal: Crystal_SMD_0603-2Pin_6.0x3.5mm i-crystal oscillator yamaphini amabili, uphawu oluncane
Isistimu yesifunda kanye nesimiso sayo sokusebenza
Uhlelo lwakhiwe eduze kwesikhulisi somsindo esinamandla aphansi LM386, PN2222A transistor, 1SV149 varactor diode, 30MHz quartz crystal nezinye izingxenye ezifana nama-potentiometers, diode, capacitor kanye resistors.
Isifunda sokugcina amandla esakhelwe ngaphakathi kumqoqi we-PN2222A siqukethe i-inductor L1 ne-capacitor C5, futhi imvamisa yokulungisa iphindwe izikhathi ezi-3 kunefrikhwensi elinganiselwe yekristalu ye-quartz, engu-90MHz. I-90MHz iyathuthukiswa bese ihlanganiswa nge-capacitor C4 ku-antenna yocingo esetshenziselwa ukudlulisa umculo noma umsindo ukuze isamukeli se-FM esiqhele ngamamitha angu-30 t0 50 sikwazi ukucosha ukusakaza.
Isakhiwo sebhodi lesifunda esiphrintiwe
Isibalo esingezansi sibonisa ukwakheka kwe-PCB yohlelo lwesidluliseli se-FM.
Ngenxa yezidingo zokunemba okuphezulu, ukuklama kuqedwa kusetshenziswa i-KiCAD EDA, lapho izingxenye zihlelwa khona ngokwesekethe ukulungiselela ukukhiqizwa.
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