Cases
High-speed Signal Testing Solution
The rapid advancement of electronic technology has been accelerating the speed of information exchange, leading to increasingly higher frequencies and complexity of high-speed signals. Accurately testing and measuring these signals has become crucial for ensuring proper system operation. Signals exhibiting the following characteristics are generally classified as high-speed: those with frequencies above 50 MHz (especially clock signals), fast-edge signals with a rise time shorter than 50 ps, and signals with a short rise time whose trace lengths are less than 20% of the effective wavelength.
Scenarios
Waveform Testing
Eye Diagram Testing
Jitter Analysis
Impedance Measurement
Frequency Domain Testing
Frequency Domain Testing
Solution
Signal integrity refers to the fidelity preservation during signal transmission. It focuses on the degradation of high-speed signals caused by factors such as impedance matching, crosstalk, and other transmission path effects. Signal integrity characterizes how these factors impact signal quality as the signal travels through the link, ultimately ensuring reliable communication between transmitters and receivers. Signal integrity testing involves many metrics and parameters, and requires diverse testing instruments. This solution contains several commonly used testing methods that can assist engineers in quickly locating and fixing signal integrity issues.
