greenjacketgirl/SDR_Receiver8This project is an attempt at designing and building a Software Defined Radio receiver that has the capabilities of listening to frequencies ranging from 500kHz to 50MHz utlizing the board designed, a sound card, and Quisk coupled with arduino code.
SDR Reciever is an open-source printed circuit board by greenjacketgirl, from the greenjacketgirl/SDR_Receiver repository on GitHub. It is a 2-layer board of 100.1 × 100.5 mm with 176 parts on 93 nets, routed with 883 tracks and 137 vias.
It is built around the LT6231, FST3253M and SI5351A-B-GT, with the BC237 and CX3225GB among its other parts. Its parts include 36 capacitors, 28 resistors, 12 inductors, 7 ICs and 2 diodes. It belongs with the radio and wireless boards of this library.
This folder contains two versions of the schematic and pcb design. The first design is the collection of files shown. The second revision is located in the folder Kicad-V2. This second revision is the schematic updated with the corrections made by hand shown in the Issues tab. Note that this second revision only has an updated schematic, not an updated pcb. Thus, future work will require further revision of the PCB.
Primary corrections made in this second revision:
I tried to include the .pretty and library files for the footprints and schematic symbols I used. If you have a difficult time seeing the footprints for some reason, you can also refer to our digikey BOM in the documents section to look up the part on the digikey website and download the respective footprint from there. You may need to also make corrections to the PCB board after uploading a new symbol and footprint .pretty file.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C14, C25, C29, C30, C31, C32, C33, C34, C36 |
| 6 | 10k | Resistor_SMD:R_0805_2012Metric | R2, R3, R18, R19, R22, R23 |
| 4 | 10uF | Capacitor_SMD:C_0805_2012Metric | C6, C16, C26, C35 |
| 4 | 17nF | Capacitor_SMD:C_0805_2012Metric | C18, C19, C20, C21 |
| 4 | 46 | Resistor_SMD:R_0805_2012Metric | R24, R25, R26, R27 |
| 4 | 50 | Resistor_SMD:R_0805_2012Metric | R4, R5, R20, R21 |
| 3 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C15, C17, C24 |
| 3 | Jumper_NC_Small | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1, JP4, JP5 |
| 3 | LT6231 | footprintsLT6231:LT6231CS8-PBF | U5, U6, U7 |
| 2 | 1.1k | Resistor_SMD:R_0805_2012Metric | R10, R11 |
| 2 | 1.6 uH | Inductor_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L4, L7 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric | R16, R17 |
| 2 | 10K | Resistor_SMD:R_0805_2012Metric | R6, R7 |
| 2 | 1nF | Capacitor_SMD:C_0805_2012Metric | C22, C23 |
| 2 | 2.2nF | Capacitor_SMD:C_0805_2012Metric | C1, C3 |
| 2 | 22.6nF | Capacitor_SMD:C_0805_2012Metric | C27, C28 |
| 2 | 240pF | Capacitor_SMD:C_0805_2012Metric | C8, C10 |
| 2 | 270nH | Inductor_SMD:L_0805_2012Metric | L11, L13 |
| 2 | 3.9uH | Inductor_THT:L_Toroid_Vertical_L13.0mm_W6.5mm_P5.60mm | L1, L3 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric | R14, R15 |
| 2 | 680pF | Capacitor_SMD:C_0805_2012Metric | C4, C7 |
| 2 | 8.66k | Resistor_SMD:R_0805_2012Metric | R12, R13 |
| 2 | 866 | Resistor_SMD:R_0805_2012Metric | R8, R9 |
| 2 | 91pF | Capacitor_SMD:C_0805_2012Metric | C11, C13 |
| 2 | D | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2 |
| 2 | FST3253 | footprintsFST:FST3253MX | U1, U2 |
| 2 | GND | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP1, TP2 |
| 2 | Jumper | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP2, JP3 |
| 1 | 0_TM | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP14 |
| 1 | 1.3nF | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 120nH | Inductor_SMD:L_0805_2012Metric | L12 |
| 1 | 180_TM | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP17 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R28 |
| 1 | 2.2k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 2.7uH | Inductor_THT:L_Toroid_Vertical_L13.0mm_W6.5mm_P5.60mm | L2 |
| 1 | 220pF | Capacitor_SMD:C_0805_2012Metric | C12 |
| 1 | 270_TM | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP16 |
| 1 | 3.3nF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 300nH | Inductor_SMD:L_0805_2012Metric | L9 |
| 1 | 4.3V | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP20 |
| 1 | 510pF | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 680nH | Inductor_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L8 |
| 1 | 680nH | Inductor_SMD:L_0805_2012Metric | L10 |
| 1 | 820nH | Inductor_THT:L_Toroid_Vertical_L10.0mm_W5.0mm_P5.08mm | L6 |
| 1 | 90_TM | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP15 |
| 1 | Arduino Nano V3 | Module:Arduino_Nano | A1 |
| 1 | AudioJack3 | Connector_Audio:Jack_3.5mm_Switronic_ST-005-G_horizontal | J2 |
| 1 | BC237 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | CX3225 | Crystal:Crystal_SMD_SeikoEpson_FA238-4Pin_3.2x2.5mm | Y1 |
| 1 | Conn_Coaxial | Connector_Coaxial:SMA_Molex_73251-1153_EdgeMount_Horizontal | J1 |
| 1 | Filt1 | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP4 |
| 1 | Filt2 | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP5 |
| 1 | Filt3 | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP6 |
| 1 | Filt4 | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP7 |
| 1 | I_1stOA | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP10 |
| 1 | I_preC | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP12 |
| 1 | Isig | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP18 |
| 1 | LO_0 | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP9 |
| 1 | LO_90 | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP8 |
| 1 | Q_1stOA | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP11 |
| 1 | Q_preC | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP13 |
| 1 | Qsig | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP19 |
| 1 | RF | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP3 |
| 1 | SN74ACT74DR | footprints:SN74ACT74DR | U4 |
| 1 | Si5351A-B-GT | Package_SO:MSOP-10_3x3mm_P0.5mm | U3 |
| 1 | Transformer_1P_1S | Transformer_THT:Transformer_Toroid_Horizontal_D14.0mm_Amidon-T50 | T1 |
The 116 most common of 176 parts.
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Circuits for the hardware part of the project
It measures 100.1 × 100.5 mm and has 2 copper layers, 1.6 mm thick.
176 parts, built around the LT6231, FST3253M, SI5351A-B-GT and BC237. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the greenjacketgirl/SDR_Receiver repository on GitHub, at the commit this page was made from: the board is SDR Receiver/KiCad/SDR Reciever.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask greenjacketgirl before reusing the design.