Lisa's Column

PCB high-speed signal impedance test skills sharing

by Sales pcb hero

PCB high-speed signal impedance test skills sharing

For low-frequency boards, PCB is to interconnect the components in the design drawings , but with the increasing frequency, PCB has begun to play t...
Posted in PCB, PCB design, PCB Impedance Matching

Designed with Orcad and Pads

by Sales pcb hero

Designed with Orcad and Pads

Orcad go to pads Logic1. Open Orcad, select .dsn in the project management view and save as a Capture 16.2 Design.DSN file (please change the name ...
Posted in PCB design

12 Requirements for Properly Designing PCB Stacking

by Sales pcb hero

12 Requirements for Properly Designing PCB Stacking

The growing demand for more compact electronics requires multilayer PCBs and a 3D design perspective. This design perspective raises new questions ...
Posted in PCB design, PCB Layer stack-up

What Is the Inductance of a Trace Over a Ground Plane?

by Sales pcb hero

What Is the Inductance of a Trace Over a Ground Plane?

Key Takeaways The inductance of a PCB trace determines the strength of any crosstalk it will receive. One challenge in designing PCB interconnects...
Posted in PCB design, PCB Impedance Matching

ABCD Parameters of Transmission Lines

by Sales pcb hero

ABCD Parameters of Transmission Lines

Key Takeaways The ABCD parameters of a transmission line give the relationship of the input voltage and currents to the output voltage and current...
Posted in PCB design

What Is the Loop Inductance of a Transmission Line?

by Sales pcb hero

What Is the Loop Inductance of a Transmission Line?

Key Takeaways All transmission lines can be described with a circuit model, where parameters are determined from Maxwell’s equations. The loop ...
Posted in PCB design, PCB layout

Common Rules for PCB Design and Routing

by Sales pcb hero

Common Rules for PCB Design and Routing

For a long time, I want to write some basic knowledge about PCB routing. A large part of the work of signal integrity is based on the setting of P...
Posted in PCB design

ABSORPTION AND DISPERSION in PCB Interconnects

by Sales pcb hero

ABSORPTION AND DISPERSION in PCB Interconnects

Reducing signal degradation requires dielectrics with lower Dk and LT, more metal and conductors without rough surfaces. At a trade show a few year...
Posted in PCB design, PCB fabrication, PCB Layer stack-up, PCB layout

Length Matching Routing for PCB Busses

by Sales pcb hero

Length Matching Routing for PCB Busses

Shortening and folding traces takes creativity and persistence, as long as the timing budget is met.   PRINTED CIRCUIT BOARDS are becoming mo...
Posted in #PCBA, PCB, PCB design, PCB fabrication, PCB Layer stack-up, PCB layout

PCB Design Considerations

by Marketing PCB HERO

PCB Design Considerations

1.    Antenna part design 1. The wiring from the Bluetooth IC to the antenna should be smooth or straight; 2. There should be no components, wiring...
Posted in PCB design

PCB Design Experience

by Marketing PCB HERO

PCB Design Experience

1. Detailed explanation of relevant design parameters:1. lineMinimum line width: 6mil (0.153mm). That is to say, if the line width is less than 6mi...
Posted in PCB design

The key point of High Frequency PCBs design

by Marketing PCB HERO

The key point of High Frequency PCBs design

High frequency circuit design is a very complicated design process, and its wiring is crucial to the entire design! Next, I will share with you som...
Posted in PCB, PCB design