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Preciso que o layout de uma placa compacta – menos de 10 × 10 cm – seja roteado priorizando três blocos críticos: memória DDR2 de alta velocidade, rádio 2,4 GHz e 5 GHz, e toda a malha de alimentação associada. O empilhamento terá mais de quatro camadas, portanto conto com o controle rigoroso de impedância, pareamento de trilhas diferenciais e blindagem adequada entre sinais ruidosos e as antenas. Já possuo o esquema elétrico e pcb com os componentes posicionados e formato da placa definido em formato kicad. Faltando apenas conferencias e roteamento. 1) Trocar alguns passivos de 0402 para 0201 -> Tem alguns capacitores de RF que nao precisam ser 0402 2) Posicionar os componentes passivos de RF 3) Fazer o casamento de impedancia do RF 4) Conferir a pinagem se esta correta, castelation etc... 5) Verificar se colocando a memoria NT5TU64M16HG-AC no lugar da winbond precisa de algum ajuste 6) ROUTEAR!! OBS: Os componentes Grande ja estao posicionados... a maioria ja esta, acho que so RF ta ruim OBS2: Projeto ta no kicad O que preciso receber ao final: • Arquivo de projeto completo (kicad) • Gerbers, arquivos de furação e desenho de montagem prontos para fabricação • Relatório de regras de projeto, incluindo impedâncias calculadas e pares equalizados • Sugestões de footprint de antena ou filtros caso identifique melhorias viáveis Critérios de aceitação: todas as trilhas DDR2 dentro da janela de comprimento diferencial indicada no datasheet, perdas simuladas mantidas ≤ −1 dB nos enlaces RF, e revisão DRC limpa. Com esses pontos atendidos, sigo direto para a fabricação piloto.
Project ID: 40707742
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Olá, sou engenheiro de sistemas embarcados com mais de 16 anos de experiência em desenvolvimento de placas multicamadas, desde a concepção até a fabricação de produtos comerciais. Tenho ampla experiência com KiCad, roteamento de memórias DDR, controle de impedância, equalização de comprimentos, pares diferenciais, fontes de alimentação e layouts de RF em 2,4/5 GHz. Posso revisar a pinagem, castellations, footprints e a substituição pela NT5TU64M16HG-AC antes de concluir o posicionamento dos passivos de RF e iniciar o roteamento. Também verificarei a troca dos componentes 0402 por 0201, retorno de corrente, isolamento entre blocos ruidosos e antenas, casamento de impedância e regras específicas da DDR2. Ao final, entregarei o projeto KiCad organizado, arquivos completos de fabricação, DRC limpo e relatório com impedâncias e comprimentos conferidos. Para atender corretamente à meta de perdas RF, gostaria de confirmar: o fabricante já definiu o stack-up, materiais, espessuras e cobre? Existe um modelo ou referência da antena e dos filtros utilizados? Posso ainda apoiar a revisão da fabricação piloto e eventuais ajustes após a montagem. Por favor, entre em contato comigo para discutirmos os detalhes.
$20 USD in 20 days
7.7
7.7
14 freelancers are bidding on average $20 USD/hour for this job

Hi, I can handle the KiCad layout review and routing for this compact high-speed board, including the DDR2, 2.4/5 GHz RF section, and power distribution. I have experience with high-speed PCB layout, RF routing, controlled impedance, differential pairs, multilayer stackups, component/footprint review, and manufacturing-ready PCB documentation. I would first review the schematic, existing placement, layer stackup, and datasheets, then check the DDR2 connectivity/pin mapping and the NT5TU64M16HG-AC replacement for any schematic, termination, power, or layout changes. For the RF section, I can optimize the 0201 passive placement, matching network, transmission-line geometry, grounding/via stitching, and separation from noisy digital/power areas. After the review, I’ll route the DDR2 with appropriate length matching and differential-pair constraints, implement controlled-impedance RF traces based on the actual stackup, and complete the power routing while maintaining suitable return paths. I’ll finish with KiCad DRC and manufacturing checks and provide the complete KiCad project, Gerbers, drill files, assembly drawing, and documented design rules/impedance calculations. I can start by reviewing the existing KiCad files and stackup to identify any issues before routing. Regards,
$15 USD in 40 days
5.8
5.8

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Antenna Design (CST, HFSS) Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI MATLAB/SIMULINK Network Simulator NS2/NS3 Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. IDEs like Keil MDK V5, ATmel studio and MPLab XC8. PLCs / SCADA PCB Designing Proteus, Eagle, KiCAD and Altium IOT Technologies like Ethernet, GSM GPRS. HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.
$20 USD in 40 days
6.2
6.2

As a Senior Electronics Engineer with expertise in RF engineering, embedded systems, and high-power electronics, I am uniquely positioned to handle your project. I have eight years of experience in circuit design, PCB layout, firmware development and more. Moreover, my background includes extensive work in RF engineering and signal processing which are essential for your project requirements involving DDR2 memory, 2.4 GHz and 5 GHz radios. I understand your need for precision in this compact layout design and can bring my strong skills in impedance control, pairing differential traces and shielding to ensure optimal performance. Having worked on projects that required more than four layers stack up, I am experienced with the stringent demands that this high-density project entails, such as controlling loss within −1 dB for RF links. With my dedication to detail and track record delivering robust hardware solutions as per the given specifications make me an ideal candidate. Lastly, filenames at correo y comunicación hace perfecto para llevar proyectos de principio a fin con los resultados de alta calidad que espera. Soy capaz y rápida en la solución de problemas, la integración del sistema y la gestión de proyectos y creo firmemente en la comunicación abierta y frecuente para mantenerlo informado sobre el progreso del proyecto. En última instancia, mi objetivo es garantizar su satisfacción plena con mi trabajo. No puedo esperar para empezar a convertir sus necesidades en realidad!
$20 USD in 10 days
4.4
4.4

Hello, I have experience in high-speed and RF PCB design using KiCad, including DDR memory interfaces, USB, Ethernet, and 2.4/5 GHz wireless circuits. For your project, I would begin with a thorough review of the existing schematic and PCB layout to verify pin assignments, footprints, castellated holes, power distribution, and any required changes related to replacing the Winbond memory with the NT5TU64M16HG-AC device. Next, I would optimize the RF section by replacing selected 0402 components with 0201 parts where appropriate, repositioning RF matching components, and routing controlled-impedance transmission lines while maintaining proper isolation between RF and noisy digital sections. For the DDR2 interface, I will route and length-match the critical signal groups according to the memory datasheet recommendations, paying close attention to topology, return paths, signal integrity, and power decoupling. Finally, I will perform a complete DRC review, manufacturing checks, and deliver the updated KiCad project, Gerber files, drill files, and a summary report of the design review and routing work performed. Before starting, I would like to review the schematic, current KiCad project, and proposed PCB stackup so I can accurately assess the impedance requirements and overall project complexity.
$20 USD in 40 days
3.5
3.5

I have 5+ years of PCB design experience, including high-speed multilayer, RF and mixed-signal boards, and I can take your existing KiCad project through final verification, RF optimization and manufacturing-ready routing. Since the schematic, board outline and most major components are already placed, I’ll focus on the critical remaining work: reviewing 0402 vs 0201 RF passives, optimizing RF passive placement, impedance matching, pinout/castellation checks, DDR2 memory compatibility and complete routing. I’ll carefully route the DDR2 interface with controlled impedance, differential/length matching and clean return paths, while keeping the 2.4/5 GHz RF section isolated from noisy digital and power circuitry. I Deliverables Completed KiCad project RF passive placement optimization 0201/0402 footprint review RF impedance/matching review DDR2 length matching and routing Pinout/castellation verification Power and grounding review DRC-clean PCB Gerber and drill files Assembly drawing Design-rule/impedance documentation Manufacturing-ready outputs Why Choose Me I understand that the difficult part here is not simply routing—it is achieving DDR2 timing, RF performance and power integrity simultaneously on a compact multilayer PCB. I’ll preserve your existing placement where practical while correcting the RF section and routing strategy where necessary.
$15 USD in 40 days
3.1
3.1

Olá, Posso revisar e finalizar este projeto diretamente no KiCad, mantendo o placement já existente e concentrando o trabalho onde realmente importa: DDR2, RF 2,4/5 GHz, alimentação e integridade dos planos de referência. Primeiro revisarei pinagem, footprints, castellations e a substituição da Winbond pela NT5TU64M16HG-AC, verificando compatibilidade elétrica, pinout e requisitos de timing. Depois ajustarei os passivos RF, incluindo a troca 0402→0201 quando apropriado, e farei o posicionamento/matching com impedância controlada conforme o stackup real do fabricante. Para DDR2, farei length matching de clock, DQS, data/address/control conforme datasheet e topologia escolhida. No RF, cuidarei de 50 Ω, transições, vias de GND, keepouts, filtros e isolamento das antenas. Entregarei o projeto KiCad completo, Gerbers, drills, assembly files, DRC limpo e relatório com impedâncias e regras utilizadas. Let's discuss. Best regards, Nichita
$20 USD in 40 days
3.0
3.0

I have 5+ years of experience in PCB design and layout, including compact high-speed boards, DDR memory, RF, impedance-controlled routing, and power distribution. Since your KiCad PCB already has the components positioned and the board outline defined, I can focus specifically on the required verification and routing work. I’ll review the existing placement and make the necessary improvements, including: Converting suitable RF passives from 0402 to 0201 Correctly placing the RF passive components RF impedance matching and controlled-impedance routing Checking pin mapping, castellations, footprints, and connectivity Reviewing the NT5TU64M16HG-AC DDR2 memory replacement against the existing Winbond memory and identifying any required schematic/layout changes Complete DDR2 length matching and high-speed routing Power and ground routing with proper return paths RF isolation, grounding, and antenna keep-outs Full DRC cleanup and manufacturing checks I’ll deliver the complete editable KiCad project, Gerbers, drill files, assembly drawing, impedance/routing documentation, and any recommended RF footprint/filter improvements. Please share the KiCad project files, schematic, datasheets, stack-up/impedance requirements, and current PCB layout so I can review the existing design before starting.
$18 USD in 40 days
2.4
2.4

The high-speed DDR2 memory, 2.4 and 5 GHz radio, and power mesh on your compact board are critical. I control impedance, differential pair routing, and shielding between noisy signals and antennas using Cadence Allegro. I will route your compact PCB, precisely placing RF passives, matching impedance, and confirming pinouts. You will get a functional board with the schema and component placement you provided in KiCad. You mentioned swapping some passives to 0201. What is the tolerance requirement for these RF capacitors? Send the KiCad files for immediate work. My 5.0 rating across 10 reviews here also means I deliver.
$25 USD in 7 days
0.0
0.0

Dear Client, For a compact PCB with DDR2, 2.4/5 GHz RF and sensitive power rails, the key challenge is not simply routing—it is maintaining signal integrity, controlled impedance, proper return paths and RF isolation. I have 11+ years of electronics/PCB experience across 500+ projects involving multilayer PCB design, RF/Wi-Fi/BLE, DDR/high-speed interfaces, power management and prototype validation. My workflow would be: Schematic Review → Pin/Footprint Check → Stack-up → RF Layout → DDR2 Routing → Power Routing → DRC/Validation I will review the existing KiCad design, verify pin assignments, castellations and footprints, evaluate the NT5TU64M16HG-AC memory replacement, convert suitable RF passives from 0402 to 0201, optimize RF component placement, implement impedance-controlled RF routing and complete the remaining PCB routing. I can deliver the complete KiCad project, Gerbers, drill files, assembly drawing, impedance/design-rule documentation and recommendations for antenna footprints or RF filters where improvements are practical. Kindly provide the KiCad files, PCB stack-up information, and relevant datasheets. I can then review the RF, DDR2, and stack-up requirements first before proceeding with the final routing. Kind Regards, Avi Gupta Quality is never an accident
$20 USD in 40 days
0.0
0.0

São José dos Campos, Brazil
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