Today's analog boards often contain a digital section on the same board as the analog section. If you do need a low loss laminate, contact your fabricator about using a hybrid PCB stackup. If you're not operating at dozens of GHz and you're only using short routes, then you will likely be fine with a standard FR4 laminate as long as you are not routing very long interconnects. Material selection: I think every designer would prefer low-loss PTFE-based laminates for every layer in their analog boards, but these costly materials are not always necessary.Instead of rails, plan to use a power plane on an internal layer and place a ground plane on an adjacent layer. Power at high frequencies: If your analog board will need to transmit at high output power and high frequencies, then you need to supply very stable power, possibly at high currents.Newer designers might be accustomed to thinking about how they want to route important analog interconnects, but if you do this early you can plan your power and signal routing accordingly. Power and ground: Plan to use plenty of ground around traces that carry critical signals in your PCB layout, and plan your power rail routing accordingly.An analog layer stack generally follows the same ideas used to build a digital PCB stackup. Once you've designed your circuits, your layer stack is the first stop in your design. We'll try to cover from low kHz frequencies up to high mmWave frequencies. In this guide, we'll outline some of the standard analog PCB design and layout guidelines you should consider. Then, the frequency range at which the board operates will determine some of the measures that need to be taken to ensure the design operates as intended. Analog circuits and PCBs need special care as the goal is generally to route signals and input them into components/circuits while ensuring low noise operation. Sometimes, it's best to think about analog PCBs and mixed-signal PCBs in terms of a common design goal. Getting started with analog PCB design can be difficult in terms of where to begin and what to think about, but we hope that these guidelines will help you understand the steps you can take to ensure success. Purely analog circuit boards and mixed signal PCBs will remain important in many products and will continue to operate at a range of frequencies. After that, when working with the rules, you can select the necessary profile for the group of circuits in a few mouse clicks.Even though building analog systems might seem like going back in time to the days of vacuum tubes, analog components and circuits are not going away any time soon, nor are the PCBs needed to support them. You only need to specify the target impedance the Layer Stack Manager will automatically select these parameters for you. With Altium Designer, you don't have to spend a lot of time calculating the impedance profiles and selecting the width and gaps of the conductors and planes. If we are able to check with the manufacturer about dielectrics and metallic materials, information about impedance requirements can be found in application design guidelines. During this stage, we need to ask ourselves "will we be able to form an impedance structure with this set of layers?”. At this stage, we will define the internal design of the PCB that starts with deciding how many metal layers are needed, the PCB thickness, via types, and impedance profiles. One of the first stages is defining a PCB Stackup. After project synchronization, we are ready to start the development of the printed circuit board.