Designing #PCB of #Analog to #Digital #board could be a challenging project for several advanced #PCB_designers. I designed PCB of this analog #video to serial #270MHz (#SDI) for #broadcasting proposes.
The first challenge of this kind of project is the #routing of #GND. The layers of PCB should be, minimum, #four_layers, and the layer under the placement side is #ground (GND). In the internal plane, the ground usually is separated into different sides of analog and digital. In my design, I divided the ground into three main parts A, B, and C. At first is the analog area, A, connected to the main ground from the front side of board. The second is digital ground, B, and the signal is mainly #27Mhz and connected to the main ground from the backside. The third side is under a 270MHz parts.
As a result, in this kind of project, the ground should be separated from each other and connecting them in far point.
I will say more #tips from this project.
@PCBandTIPs
www.pcbdesign.ir
www.pcbtips.com
#PCBTIPs
I am ready to do your #PCB_project soon and professionally!
My WhatsApp: +1 (780) 437 1608
Cell phone: +1 (780) 437 1608
Telegram: https://t.com/PCBandTIPs
Ali Padasha
Table of Contents
- Sizing Traces
- trace width calculator
- Make Loops Small
- Decoupling Capacitor Placement
- Kelvin Connections
- Keep Digital and Noisy Traces Away from Analog Traces
- The ground is Not Grounds!
- Via Size and Number
- Using PCB as Heatsink
- Thermal Vias
- Thermal Relief
- Distance between Traces and Mounting Holes
- Heat Sensitive Components
Table of Contents
- Sizing Traces
- trace width calculator
- Make Loops Small
- Decoupling Capacitor Placement
- Kelvin Connections
- Keep Digital and Noisy Traces Away from Analog Traces
- The ground is Not Grounds!
- Via Size and Number
- Using PCB as Heatsink
- Thermal Vias
- Thermal Relief
- Distance between Traces and Mounting Holes
- Heat Sensitive Components
Practical PCB Layout Tips
Engineers tend to pay most attention to circuits, the latest components, and code as important parts of an electronics project, but sometimes a critical component of electronics, the PCB layout, is neglected. Poor PCB layout can cause function and reliability problems. This article contains practical PCB layout tips that can help your PCB projects work correctly and reliably.
