Beschreibung

The Picotest P2124A is a GaN-based probe used for PSNR and other noise immunity tests. It combines a power rail voltage with a modulation signal to a DUT being tested for noise immunity (PSNR) with input stimulus and power. The modulation signal can be any 50 Ohm analog signal within the bandwidth limits of the probe. Two solder tabbed terminals are used at the probe tip to connect the modulator to the DUT. A SMPM connector at the back end is used to connect an analog modulation source. A 4-pin Modulation Electronics Connector at the back end of the probe connects the external power supply and provides tip voltage sense signals for remote sensing. The probe includes the water-cooling system and supports the connection of two probes simultaneously. The P2124A supports the QSFP-DD/QSFP-DD800/QSFP112 Hardware Specification 6.3, OSFP Octal Small Form Factor Pluggable Module Rev. 5, and other pluggable transceivers power supply output noise and tolerance testing specifications including AEC cable and optical module sinusoidal power supply noise tolerance. The probe can be used by manufacturers or end-users to verify OEM compliance with the requirements. A remote sense module is provided to support optimum voltage compliance for the DUT.

Applications:
•Power supply noise immunity testing
•QSFP-DD and OSFP Power Supply Noise Tolerance Testing
•Power supply rejection ratio (PSRR), power supply modulation ratio (PSMR), and power supply signal to noise ratio (PSNR) measurement
•General PSRR/PSMR high power high bandwidth testing