BitForge-SDR
About the BitForge-SDR PCB
BitForge-SDR is an open source PCB design by HarrySkySon, published on GitHub under the CERN-OHL-S-2.0 license. It is a 6-layer board measuring 100 × 85 mm, with 332 components from 146 distinct parts.
Other key parts include the LP5907MFX-3.3, PE43711A-Z, PE42582A-X, LM27762 and F2912NCGI8. By type, the board carries 155 capacitors, 76 inductors, 66 resistors, 20 ICs, 5 transformers and 4 connectors.
It belongs with the rf & radio, audio and test & measurement designs in this gallery.
From the project
Open-Source 16-bit Direct-Sampling HF SDR Transceiver | 9 kHz - 72 MHz | >100 dB Dynamic Range
A high-performance Software Defined Radio transceiver built around the LTC2209 16-bit 153.6 MSPS ADC and MAX5885 16-bit DAC. Designed for demanding HF reception from VLF through the 4-meter band, with full transmit capability and instrumentation-grade dynamic range.
Most open-source direct-sampling SDRs use the LTC2208 (130 MSPS). The LTC2209 pushes the sample rate to 153.6 MSPS, extending the Nyquist bandwidth to 76.8 MHz and comfortably covering the entire 9 kHz -- 72 MHz range without aliasing concerns at the band edges.
Main components on the BitForge-SDR
BitForge-SDR bill of materials (BOM)
332 components, 146 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | LP5907MFX-3.3 | SOT-23-5 | IC101, IC405, IC501 |
| 2 | PE43711A-Z | QFN50P400X400X90-25N-D | IC104, IC502 |
| 2 | PE42582A-X | QFN50P400X400X90-25N-D | IC201, IC202 |
| 1 | LM27762 | WSON-12-1EP_3x2mm_P0.5mm_EP1x2.65_ThermalVias | IC203 |
| 3 | F2912NCGI8 | QFN50P400X400X80-21N-D | IC401, IC402, IC403 |
| 1 | LTC6432AIUF-15#PBF | QFN50P400X400X80-25N-D | IC601 |
| 4 | TPS7A9401DSCR | SON50P300X300X80-11N-D | IC602, IC702, IC703, IC902 |
| 1 | LTC2209IUPPBF | QFN50P900X900X80-65N | IC701 |
| 1 | SI5391B-A-GM | QFN50P900X900X90-65N-D | IC801 |
| 1 | MAX5885EGM+D | QFN50P700X700X100-49N | IC901 |
| 1 | SN74LV1T04DCKR | Texas_Instruments-DCK0005A-0-0-IPC_C | U902 |
| 1 | 38.4 MHz TCXO | Oscillator_SMD_Kyocera_2520-6Pin_2.5x2.0mm | X801 |
| 1 | SMA RX | SMA_BAT_Wireless_BWSMA-KWE-Z001 | J101 |
| 2 | 2222 Adafruit Pin Header 2x20 Female 2.54mm | PinHeader_2x20_P2.54mm_Vertical | J701, J901 |
| 1 | SMA TX | SMA_BAT_Wireless_BWSMA-KWE-Z001 | J902 |
| 3 | — | 1, 2, 3 | |
| 4 | CX2041NLT 1:1 | CX2041NLT | T101, T602, T901, T902 |
| 1 | TTWB-2-A 1:2 | TTWB20101LB | T601 |
| 2 | CDSOD323-T05LC | D_SOD-323_HandSoldering | TVS101, TVS901 |
| 8 | 1000Ω@100MHz | L_0603_1608Metric | FB102, FB201, FB402, FB501, FB601, FB701, FB702, FB901 |
Show 126 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 4.7U 4.7u | L_1008_2520Metric | L301, L305 |
| 1 | 6.8U 6.8u | L_1210_3225Metric | L302 |
| 1 | 3.3U 3.3u | L_1008_2520Metric | L303 |
| 3 | 1.2U 1.2u | L_1008_2520Metric | L304, L321, L340 |
| 1 | 2.7U 2.7u | L_1008_2520Metric | L306 |
| 3 | 3.9U 3.9u | L_1008_2520Metric | L307, L311, L326 |
| 4 | 1.5U 1.5u | L_1008_2520Metric | L308, L313, L324, L325 |
| 3 | 1u | L_1008_2520Metric | L309, L315, L347 |
| 1 | 6.2U 6.2u | L_1008_2520Metric | L310 |
| 1 | 15U 15u | L_1008_2520Metric | L312 |
| 3 | 2.2U 2.2u | L_1008_2520Metric | L314, L317, L318 |
| 1 | 620N 620n | L_1008_2520Metric | L316 |
| 1 | 4.7 | L_1008_2520Metric | L319 |
| 1 | 910N 910n | L_1008_2520Metric | L320 |
| 2 | 560N 560n | L_1008_2520Metric | L322, L346 |
| 3 | 390N 390n | L_1008_2520Metric | L323, L327, L338 |
| 3 | 680N 680n | L_1008_2520Metric | L328, L331, L339 |
| 1 | 270NF 270nF | L_1008_2520Metric | L329 |
| 1 | 200N 200n | L_0603_1608Metric | L330 |
| 1 | 750N 750n | L_1008_2520Metric | L332 |
| 1 | 1.8U 1.8u | L_1008_2520Metric | L333 |
| 1 | 330N 330n | L_1008_2520Metric | L334 |
| 2 | 470N 470n | L_1008_2520Metric | L335, L342 |
| 2 | 180N 180n | L_0603_1608Metric | L336, L337 |
| 1 | 270N 270n | L_1008_2520Metric | L341 |
| 1 | 160N 160n | L_0603_1608Metric | L343 |
| 1 | 150N 150n | L_1008_2520Metric | L344 |
| 1 | 300N 300n | L_0603_1608Metric | L345 |
| 1 | 110NH 110nH | L_0603_1608Metric | L348 |
| 1 | 24NH 24nH | L_0603_1608Metric | L349 |
| 1 | 130NH 130nH | L_0603_1608Metric | L350 |
| 1 | 160NH 160nH | L_0603_1608Metric | L351 |
| 1 | 75NH 75nH | L_0603_1608Metric | L352 |
| 1 | 240NH 240nH | L_0805_2012Metric | L353 |
| 6 | 100NH 100nH | L_0603_1608Metric | L354, L355, L605, L606, L609, L610 |
| 1 | 68NH 68nH | L_0603_1608Metric | L356 |
| 2 | 470µH | L_Changjiang_FNR8065S | L601, L604 |
| 2 | 560NH 560nH | L_Sunlord_SWPA252010S | L602, L603 |
| 2 | 27NH 27nH | L_0603_1608Metric | L607, L608 |
| 2 | 47µH | L_Sunlord_SWPA4030S | L611, L612 |
| 10 | 0508ZC105KAT2A 1uF | 0508 | C101, C601, C602, C613, C614, C702, C703, C704 +2 |
| 14 | 1µF | C_0603_1608Metric | C102, C103, C403, C404, C501, C502, C607, C608 +6 |
| 3 | 22UF 22uF | C_0603_1608Metric | C201, C207, C208 |
| 24 | 100NF 100nF | C_0603_1608Metric | C202, C203, C205, C617, C802, C803, C804, C805 +16 |
| 3 | 1UF 1uF | C_0603_1608Metric | C204, C605, C606 |
| 1 | 10UF 10uF | C_0603_1608Metric | C206 |
| 1 | 2.2NF 2.2nF | C_0603_1608Metric | C301 |
| 2 | 270PF 270pF | C_0603_1608Metric | C302, C348 |
| 1 | 1.2NF 1.2nF | C_0603_1608Metric | C303 |
| 1 | 68PF 68pF | C_0603_1608Metric | C304 |
| 1 | 91PF 91pF | C_0603_1608Metric | C305 |
| 2 | 1.5NF 1.5nF | C_0603_1608Metric | C306, C324 |
| 2 | 1NF 1nF | C_0603_1608Metric | C307, C315 |
| 1 | 2.7NF 2.7nF | C_0603_1608Metric | C308 |
| 4 | 150PF 150pF | C_0603_1608Metric | C309, C316, C330, C334 |
| 1 | 680PF 680pF | C_0603_1608Metric | C310 |
| 4 | 51PF 51pF | C_0603_1608Metric | C311, C352, C364, C367 |
| 1 | 3.3NF 3.3nF | C_0603_1608Metric | C312 |
| 1 | 430PF 430pF | C_0603_1608Metric | C313 |
| 1 | 300PF 300pF | C_0603_1608Metric | C314 |
| 1 | 36PF 36pF | C_0603_1608Metric | C317 |
| 1 | 560PF 560pF | C_0603_1608Metric | C318 |
| 2 | 330PF 330pF | C_0603_1608Metric | C319, C322 |
| 1 | 820PF 820pF | C_0603_1608Metric | C320 |
| 2 | 39PF 39pF | C_0603_1608Metric | C321, C355 |
| 2 | 12PF 12pF | C_0603_1608Metric | C323, C357 |
| 2 | 130PF 130pF | C_0603_1608Metric | C325, C342 |
| 1 | 8,2pF | C_0603_1608Metric | C326 |
| 1 | 470PF 470pF | C_0603_1608Metric | C327 |
| 4 | 24PF 24pF | C_0603_1608Metric | C328, C360, C363, C369 |
| 2 | 220PF 220pF | C_0603_1608Metric | C329, C344 |
| 2 | 390PF 390pF | C_0603_1608Metric | C331, C336 |
| 1 | 10PF 10pF | C_0603_1608Metric | C332 |
| 3 | 18PF 18pF | C_0603_1608Metric | C333, C335, C371 |
| 2 | 56PF 56pF | C_0603_1608Metric | C337, C338 |
| 2 | 3.3PF 3.3pF | C_0603_1608Metric | C339, C368 |
| 1 | 120PF 120pF | C_0603_1608Metric | C340 |
| 1 | 6,8pF | C_0603_1608Metric | C341 |
| 3 | 82PF 82pF | C_0603_1608Metric | C343, C347, C351 |
| 1 | 16PF 16pF | C_0603_1608Metric | C345 |
| 1 | 3.9PF 3.9pF | C_0603_1608Metric | C346 |
| 1 | 23PF 23pF | C_0603_1608Metric | C349 |
| 2 | 30PF 30pF | C_0603_1608Metric | C350, C373 |
| 1 | 33PF 33pF | C_0603_1608Metric | C353 |
| 1 | 100PF 100pF | C_0603_1608Metric | C354 |
| 1 | 110PF 110pF | C_0603_1608Metric | C356 |
| 1 | 27PF 27pF | C_0603_1608Metric | C358 |
| 1 | 1PF 1pF | C_0603_1608Metric | C359 |
| 1 | 15PF 15pF | C_0603_1608Metric | C361 |
| 1 | 47PF 47pF | C_0603_1608Metric | C362 |
| 1 | 7.5PF 7.5pF | C_0603_1608Metric | C365 |
| 1 | 13PF 13pF | C_0603_1608Metric | C366 |
| 2 | 2PF 2pF | C_0603_1608Metric | C370, C374 |
| 1 | 0,75pF | C_0603_1608Metric | C372 |
| 8 | 10µF | C_0603_1608Metric | C603, C620, C701, C707, C709, C711, C909, C911 |
| 4 | 4.7µF | C_0603_1608Metric | C604, C706, C710, C910 |
| 2 | 100NF 100nF | L_0805_2012Metric | C609, C610 |
| 2 | 1µF | L_0805_2012Metric | C611, C612 |
| 2 | 10NF 10nF | L_0805_2012Metric | C615, C616 |
| 1 | 8.2PF 8.2pF | C_0603_1608Metric | C618 |
| 2 | 20PF 20pF | C_0603_1608Metric | C619, C625 |
| 2 | 1000PF 1000pF | C_0603_1608Metric | C622, C623 |
| 1 | 2.2µF | C_0603_1608Metric | C626 |
| 2 | 1µF | C_0805_2012Metric | C916, C917 |
| 2 | 1MΩ | R_0603_1608Metric | R101, R902 |
| 17 | 10kΩ | R_0603_1608Metric | R102, R201, R202, R501, R614, R615, R618, R702 +9 |
| 1 | 160kΩ | R_0603_1608Metric | R203 |
| 2 | 91kΩ | R_0603_1608Metric | R204, R205 |
| 1 | 130kΩ | R_0603_1608Metric | R206 |
| 2 | 360Ω | R_0603_1608Metric | R601, R602 |
| 2 | 390Ω | R_0603_1608Metric | R603, R606 |
| 2 | 54Ω | R_0603_1608Metric | R604, R605 |
| 4 | 10Ω | R_0603_1608Metric | R607, R608, R612, R613 |
| 2 | 33Ω | R_0603_1608Metric | R609, R610 |
| 3 | 100Ω | R_0603_1608Metric | R611, R701, R919 |
| 1 | 30kΩ 1% | R_0603_1608Metric | R616 |
| 3 | 47kΩ | R_0603_1608Metric | R617, R705, R909 |
| 1 | 3.6kΩ 1% | R_0603_1608Metric | R619 |
| 2 | 82Ω | R_0603_1608Metric | R620, R621 |
| 2 | 2.2kΩ | R_0603_1608Metric | R622, R623 |
| 2 | 22kΩ 1% | R_0603_1608Metric | R704, R907 |
| 1 | 12kΩ 1% | R_0603_1608Metric | R709 |
| 2 | 4.7kΩ | R_0603_1608Metric | R801, R802 |
| 1 | 2kΩ | R_0603_1608Metric | R901 |
| 2 | 25Ω | R_0603_1608Metric | R903, R904 |
| 11 | 47Ω | R_0603_1608Metric | R910, R911, R912, R913, R914, R915, R916, R917 +3 |
BitForge-SDR design files
The KiCad project lives in the HarrySkySon/BitForge-SDR repository on GitHub; these links point at the commit this page was built from.
BitForge-SDR: common questions
How big is the BitForge-SDR PCB?
The BitForge-SDR measures 100 × 85 mm, has 6 copper layers and is 1.5744 mm thick.
How many components are on the BitForge-SDR?
332 components, from 146 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the BitForge-SDR design files?
From the HarrySkySon/BitForge-SDR repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the BitForge-SDR design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which HarrySkySon chose for the repository.
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