Noise has always been a core concern for communication experts, but it is now rapidly becoming a tricky problem that every semiconductor designer must face—— Some chips are already experiencing performance degradation issues. Noise can be defined as any interference that deviates from the ideal state and may affect the expected functionality. In the semiconductor … Read more
Power Integrity (PI) Power Integrity (Power Integrality), abbreviated as PI, is the process of verifying whether the voltage and current at the power source and destination meet the requirements. Currently, power integrity remains one of the biggest challenges in high-speed PCB design. Power integrity involves multiple levels, including chip level, chip packaging level, circuit board … Read more
Power Integrity (PI) Power Integrity (PI) refers to the verification of whether the voltage and current at the power source and destination meet the requirements. Currently, power integrity remains one of the biggest challenges in high-speed PCB design. Power integrity involves aspects at the chip level, chip package level, circuit board level, and system level. … Read more
1. Overview Managing chip voltage drop is crucial for ensuring the stable operation of integrated circuits (IC), involving multiple levels such as the printed circuit board (PCB), packaging, and within the chip itself. Specific recommended metrics vary based on application domain, process node, chip type, etc., but here are some general guidelines and reference metrics: … Read more
Oscilloscope probes are widely used in electronic measurements, such as debugging complex electronic circuits, measuring the signal integrity of high-speed serial bus signals, and characterizing high-voltage power electronic devices. The probes and accessories used largely determine the measurement accuracy and the safety of the operator. In general, the probe product range includes high-quality active and … Read more
The PMU (Power Management Unit) is responsible for supplying power to the SoC (System on Chip), regulating voltage and current to ensure the normal operation of various modules. Power integrity is crucial for ensuring that the Power Distribution Network (PDN) can provide stable and clean voltage and current, avoiding noise interference with the normal operation … Read more
In the field of embedded hardware design, the DDR power circuit serves as the core power supply unit, and its design quality directly affects chip performance and long-term device stability. The RK3588, as a high-performance processor, has stringent requirements for the layout, routing, and component selection of the VCC_DDR power circuit. This article combines official … Read more
This article introduces resonance simulation and decoupling capacitor placement, applicable during the pre-layout design or rectification phase of power/ground planes in PCB design, to avoid board-wide resonance issues within the concerned frequency range. The software used for this simulation is SIwave from Ansys. The PCB import will not be elaborated here; it is important to … Read more
The manufacturing of circuit boards in the electronics industry is crucial. Traditional manufacturing methods cannot visually detect issues related to heat, thermal flow (heat & high-speed electronic particles & interference particles, etc.), impedance, load, and more. With the development of smart technologies, many new techniques and devices have addressed previous shortcomings, such as using sensors … Read more
A small chip can potentially ruin an entire IoT project. In today’s booming smart home, industrial IoT, and wearable device markets, the ESP32 has become the preferred solution for global developers to build smart devices due to its dual-core processing capability, Wi-Fi/Bluetooth dual-mode communication, and ultra-low power consumption. According to statistics, global shipments of ESP32 … Read more