4 layers40 × 40 mm
Pre filter
dfdtc/RMUC2026_RF
This is the pubilc repository of BNBU 2026 RMUC RF part of Radar
23 parts14GPL-3.0
4 layers50 × 50 mm
Distramp
SvalbardHAB/DistributionAmp3434MHz/868MHz LoRa distribution amplifier (BPF and LNA followed by splitter)
- Size
- 50 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 14
- Pads
- 98
- Tracks, vias
- 262, 92
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 12 Jul 2016
- Updated
- 12 Oct 2017
Overview
Distramp is an open-source printed circuit board by SvalbardHAB, from the SvalbardHAB/DistributionAmp repository on GitHub. It is a 4-layer board of 50 × 50 mm with 28 parts on 14 nets, routed with 262 tracks and 92 vias.
It is built around the B39431B3710U410 and ESDAXLC6-1BT2. Its parts include 8 capacitors, 6 connectors, 5 resistors, 5 inductors and 2 ICs. It belongs with the radio and wireless boards of this library.
Main components
2
B39431B3710U410
SMD3030-6P-40℃~+85℃ 1.7MHz 2dB 433.92MHz 50Ω SMD3030-6P SAW Filters ROHSQualcommSAW Filters
ESDAXLC6-1BT2
SOD-882T-40℃~+150℃ 0.4pF 1 1.3A@8/20us 17V 3V 40W@8/20us 6V 70nA Bidirectional IEC 61000-4-2 TVS SOD-882T ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
README
README.mdDistributionAmp
434MHz/868MHz LoRa distribution amplifier (BPF and LNA followed by splitter)
This is a simple board designed to improve the performance of a LoRa system, as well as allowing multiple receivers at multiple frequencies or for redundancy (e.g. we used this for a one-off HAB experiment opportunity).
It features:
- Input SAW filter for out-of-band noise rejection (e.g. 800MHz 4G) with ESD protection
- MAAL-010704 (0.8dB NF, 20dB gain) LNA
- Inductive splitter to four outputs with SMA connectors
- Low noise 3V LDO powering the LNA
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 72n | Resistors_SMD:R_0402 | L2, L3, L4, L5 |
| 4 | DNP | Resistors_SMD:R_0402 | R2, R3, R4, R5 |
| 4 | OUT | Custom Parts:RFcon | P2, P3, P4, P5 |
| 3 | 1n | Capacitors_SMD:C_0402 | C1, C6, C7 |
| 2 | 10n | Capacitors_SMD:C_0402 | C3, C4 |
| 2 | 4.7µ | Capacitors_SMD:C_0805 | C2, C5 |
| 1 | 100µ | Capacitors_Tantalum_SMD:TantalC_SizeD_EIA-7343_Reflow | C8 |
| 1 | 120 | Resistors_SMD:R_0402 | R1 |
| 1 | 82n | Resistors_SMD:R_0402 | L1 |
| 1 | ANT | Custom Parts:RFcon | P1 |
| 1 | B39431B3710U410 | Custom Parts:SAW-DCC6C | SAW1 |
| 1 | ESDAXLC6-1BT2 | Resistors_SMD:R_0402 | D1 |
| 1 | MAAL-010704 | TO_SOT_Packages_SMD:SC-70-6_Handsoldering | U1 |
| 1 | PWR | Pin_Headers:Pin_Header_Straight_1x02 | P6 |
| 1 | TPS796xxDCQ | Custom Parts:SOT-223-6 | U2 |
Questions
How big is the Distramp PCB?
It measures 50 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Distramp use?
28 parts, built around the B39431B3710U410 and ESDAXLC6-1BT2. 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 Distramp KiCad files?
From the SvalbardHAB/DistributionAmp repository on GitHub, at the commit this page was made from: the board is distramp.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Distramp design in my own project?
Its repository states no licence, so its author keeps all rights: ask SvalbardHAB before reusing the design.
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