2 layers99.6 × 99.7 mm
Complete Schematic V5
JoshuaMularczyk/Software_Defined_Radio_Receiver
This project was taken on with the goal to create a Software Defined Radio (SDR) in coolaboration with my partner Christian Williams.
74 parts1MIT
2 layers79.8 × 23.9 mm
Software Defined Radio for MF bands using STM32F042
- Size
- 79.8 × 23.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 52
- Pads
- 167
- Tracks, vias
- 292, 67
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 6 May 2020
- Updated
- 25 Aug 2020
Overview
Sdr is an open-source printed circuit board by pd0wm, from the pd0wm/simple-sdr repository on GitHub, published under the MIT licence. It is a 2-layer board of 79.8 × 23.9 mm with 49 parts on 52 nets, routed with 292 tracks and 67 vias.
It is built around the LT6231 and SN74CBT3253D. Its parts include 21 capacitors, 14 resistors, 4 ICs, 4 connectors and 2 diodes. It belongs with the radio and wireless boards and the STM32 boards of this library.
Main components
2README
README.mdsimple-sdr PCB
Simple Software Defined Radio based on Softrock Lite II. The IF generation and sampling is handled by an STM32F042. This design is intended to build a low cost NAVTEX receiver, but can be used for all kinds of purposes. The current design has an input bandpass filter ranging from 400 - 1600 KHz.
WARNING: So far I haven't been able to receive anything yet with this hardware. Please use at your own risk.
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1, C2, C4, C5, C8, C16, C17, C18 |
| 4 | 4.7u | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C3, C19, C20, C21 |
| 2 | 10 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R9, R10 |
| 2 | 100 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R3, R6 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R11, R14 |
| 2 | 10n | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C9, C13 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C14, C15 |
| 2 | 140 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R12, R13 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1, R2 |
| 2 | 390p | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C6, C7 |
| 2 | 4.99k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R4, R5 |
| 2 | 47n | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C10, C11 |
| 2 | 49.9 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R7, R8 |
| 1 | 3.9u | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | L1 |
| 1 | 5.6n | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C12 |
| 1 | 6.8u | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | T1 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Conn_01x03_Male | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_901-144_Vertical | J2 |
| 1 | DFU | Button_Switch_SMD:SW_SPST_EVQQ2 | SW2 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | LT6231 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | RED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | RST | Button_Switch_SMD:SW_SPST_EVQQ2 | SW1 |
| 1 | SN74CBT3253 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | STM32F042G4Ux | Package_DFN_QFN:QFN-28_4x4mm_P0.5mm | U4 |
| 1 | USB_B_Mini | Connector_USB:USB_Mini-B_Wuerth_65100516121_Horizontal | J4 |
Questions
How big is the Sdr PCB?
It measures 79.8 × 23.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sdr use?
49 parts, built around the LT6231 and SN74CBT3253D. 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.
Where can I download the Sdr KiCad files?
From the pd0wm/simple-sdr repository on GitHub, at the commit this page was made from: the board is pcb/sdr.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sdr design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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