Picotest has recently announced their USB multi-clock comb generator, the J2150A, designed to ferret out resonant sensitivities in your power delivery network (PDN).
The J2150A is a troubleshooting tool to help reveal resonances in power bus and power supply circuitry. It’s also very useful as an EMC/EMI troubleshooting tool and can also help identify EMI resonances that may cause product compliance failures.
The generator has five different frequency modes, from 1kHz to 8MHz. Several of the modes are “dithered” in pulse width and frequency, so as to help fill in the gaps between harmonic combs.
No external software is required for operation and the key is USB powered so its ultraportable. It can also be powered from a battery.
The J2150A has many uses including EMI, power supply and clock jitter testing, cable testing, EMC chamber characterization (for measurement consistency day‐to‐day, and comparing one chamber to another), a general purpose source for characterizing semi‐anechoic chambers and can work as an AWG substitute for transient step load testing.
