6 layers567.7 × 328.4 mm
2 layers114.3 × 114.3 mm
LWA Balun 2020
lwa-project/front_end1KiCAD files for the LWA front end electronics
- Size
- 114.3 × 114.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 62
- Nets
- 36
- Pads
- 175
- Tracks, vias
- 107, 108
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 9 Jun 2023
- Updated
- 9 Jun 2023
Overview
LWA Balun 2020 is an open-source printed circuit board by lwa-project, from the lwa-project/front_end repository on GitHub. It is a 2-layer board of 114.3 × 114.3 mm with 62 parts on 36 nets, routed with 107 tracks and 108 vias.
It is built around the GALI-74+, GALI-6+ and PAT1220-C-3DB-T5, with the LM2937IMP-12, TVS2201DRB and CC1206KKX7RYBB104 among its other parts. Its parts include 19 capacitors, 8 inductors, 7 resistors, 5 ICs and 5 diodes.
Main components
12
GALI-74+
SOT-89-3-45℃~+85℃ 0Hz~1GHz 12.5dB 19.2dBm 2.7dB 21dB 25.1dB 38dBm 4.3V~5.3V 80mA SOT-89-3 RF Amplifiers ROHSMini-CircuitsRF AmplifiersGALI-6+
SOT-890Hz~4GHz 12.3dB 18.2dBm 4.5dB 4.6V~5.6V 70mA SOT-89 RF Amplifiers ROHSMini-CircuitsRF Amplifiers
PAT1220-C-3DB-T5
SMD-3P,2x1.2mm-55℃~+125℃ 0Hz~10GHz 100mW 1dB 3dB 50Ω SMD-3P,2x1.2mm RF Attenuators ROHSSusumuRF Attenuators
LM2937IMP-12
SOT-223-40℃~+85℃@(Ta) 1 10mA 12V 1V@(500mA) 26V 360uVrms 500mA Fixed Over Current Protection、Over Temperature Protection、Reverse connection protection Positive SOT-223-4 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TVS2201DRB
VSON-8-EP(3x3)-40℃~+125℃ 1mm 2 22V 3mm 3mm Integrated FET Surface Mount VSON-8-EP(3x3) Surge Protection Devices (SPDs) ROHSTexas InstrumentsSurge Protection Devices (SPDs)
CC1206KKX7RYBB104
1206100nF 250V X7R ±10% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
1008CS-472XJLC
SMD,2.9x2.8mmSMD,2.9x2.8mm Inductors (SMD) ROHSCoilcraftInductors (SMD)
BAV99LT1G
SOT-23-65℃~+150℃@(Tj) 1 Pair Series Connection 1.25V@150mA 100V 1uA@100V 215mA 2A 6ns SOT-23 Switching Diodes ROHSonsemiSwitching Diodes
HZ0805C202R-10
08051 2kΩ@100MHz 500mΩ 0805 Ferrite Beads ROHSLairdFerrite Beads
CL32B106KBJNNWE
121010uF 50V X7R ±10% 1210 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
1008CS-330XGLC
SMD,2.9x2.8mmSMD,2.9x2.8mm Inductors (SMD) ROHSCoilcraftInductors (SMD)
06031A330GAT2A
0603100V 33pF C0G ±2% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSKyocera AVXMultilayer Ceramic Capacitors MLCC - SMD/SMT
README
README.mdLWA Front End Electronics (FEE) v2
Description
This directory contains the KiCAD v7 project files needed to build version 2 of the LWA Front End Electronics board. Inside "LWA Balun 2020" is the full KiCAD v7 project, the Gerber files, and BoM for the board, relevant data sheets for the parts used, and an image of the rendered 3D model of the full board.
Parts
62| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0.1 uF | LWA Balun 2020:C_1206_3216Metric_Pad1.6x1.8mm | C2, C3, C5, C6, C8, C9, C12, C13, C15, C19 |
| 4 | 1/4-20 FREE-FIT | LWA Balun 2020:Feedpoint | FP1, FP2, FP3, FP4 |
| 3 | 1000 pF | LWA Balun 2020:C_1206_3216Metric_Pad1.6x1.8mm | C4, C7, C11 |
| 3 | 4.7 uH | LWA Balun 2020:1008CS | L1, L2, L4 |
| 3 | BAV99LT1G | Package_TO_SOT_SMD:SOT-23 | D2, D3, D4 |
| 3 | HZ0805C202R-10 | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | FB1, FB2, FB3 |
| 2 | 10 uF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C1, C18 |
| 2 | 33 nH | LWA Balun 2020:1008CS | L6, L7 |
| 2 | 33 pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C14, C17 |
| 2 | 4.7k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4, R5 |
| 2 | 91R | LWA Balun 2020:R_2512_6332Metric_Pad1.8x3.35mm | R1, R2 |
| 2 | GALI-74+ | LWA Balun 2020:MCL_Gali | U1, U2 |
| 2 | GND_Bolt | LWA Balun 2020:GND_Bolt | MH1, MH2 |
| 2 | JS1621-46R | LWA Balun 2020:S1621-46R | JP1, JP2 |
| 1 | +V TEST | LWA Balun 2020:Harwin_TP_S1751-46R | TP1 |
| 1 | 100 nH | LWA Balun 2020:1008CS | L5 |
| 1 | 20 mOhm | LWA Balun 2020:ESR_20_mOhm | R7 |
| 1 | 2035-09-SM-RPLF | LWA Balun 2020:2035-09-SM-RPLF | GDT1 |
| 1 | 22 uF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C16 |
| 1 | 4.7 uH | LWA Balun 2020:1008PS | L3 |
| 1 | 51R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3 |
| 1 | 95.3R | LWA Balun 2020:R_2512_6332Metric_Pad1.8x3.35mm | R6 |
| 1 | AMT-32+ | LWA Balun 2020:AMT-2 | H1 |
| 1 | GALI-6+ | LWA Balun 2020:MCL_Gali | U4 |
| 1 | GND TEST | LWA Balun 2020:Harwin_TP_S1751-46R | TP2 |
| 1 | Green | LED_SMD:LED_1206_3216Metric | D8 |
| 1 | LM2937IMP-12 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | OPT | LWA Balun 2020:1008CS_RES | L8 |
| 1 | OPT | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C20 |
| 1 | PAT1220-C-3DB | LWA Balun 2020:RF_Attenuator_Susumu_PAT1220_3D | ATT1 |
| 1 | PCB Layer Stackup Detail | FabDrawingTemplates:FabDrawing-2Layer-Imperial_LWA | G1 |
| 1 | RF OUT+DC IN | LWA Balun 2020:SMA_142-0701-201 | S3 |
| 1 | SK24 | Diode_SMD:D_SMB_Handsoldering | D1 |
| 1 | TVS2201 | LWA Balun 2020:Texas_DRB0008A_VSON-N8_No_Vias | U5 |
Questions
How big is the LWA Balun 2020 PCB?
It measures 114.3 × 114.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LWA Balun 2020 use?
62 parts, built around the GALI-74+, GALI-6+, PAT1220-C-3DB-T5 and LM2937IMP-12. 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 LWA Balun 2020 KiCad files?
From the lwa-project/front_end repository on GitHub, at the commit this page was made from: the board is LWA Balun 2020/LWA Balun 2020.kicad_pcb and its schematic LWA Balun 2020/LWA Balun 2020.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LWA Balun 2020 design in my own project?
Its repository states no licence, so its author keeps all rights: ask lwa-project before reusing the design.
Similar boards
- 2 layers114.3 × 114.3 mm
LWA Cal Test 2022
lwa-project/Antenna_Impedance
Collection of scripts and files dealing with the LWA antenna impedance
15 parts3GPL-2.0 - 4 layers57 × 33 mm
Sensor pcb
nichlock/open-linear-scale
Open-source capacitive linear encoder / DIY DRO scale: KiCad PCBs, STM32 firmware, and test data. Same principle as digital calipers.
69 parts73 - 2 layers50 × 60 mm
RespiratorIF
DigitalRealitiesLab/AirResMask
AirRes Mask: A Precise and Robust Virtual Reality Breathing Interface Utilizing Breathing Resistance as Output Modality
48 parts3MIT - 2 layers70 × 100 mm
- 4 layers67.5 × 28.8 mm
CC1125 Transceiver
Flynsky/subGHzTransceiver
Sub GHz Transceiver for Cube Satellite Applications
83 parts - 2 layers50 × 50 mm
- 2 layers90.3 × 18.2 mm
POWER BOARD
zatelectronic/POWER_BOARD_5V
O design é compacto e totalmente SMD, com conexões de entrada e saída por pads de solda expostos diretamente na PCB.
11 parts1