A new automotive serializer/deserializer (SerDes) receiver (Rx) compliance test solution verifies mobile industry processor interface (MIPI) A-PHY devices based on the Compliance Test Specification (CTS) requirements. This solution was developed in collaboration with BitifEye Digital Test Solutions GMBH and Wilder Technologies, with the support of Valens Semiconductor Ltd.. Silicon vendors are planning to implement MIPI […]
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Analyzing jitter with an oscilloscope
Jitter–basically the deviation between true and measured periodicity–is harmful beyond a certain level. In measuring jitter, we are calculating RMS, peak-to-peak deviation or spectral density. Jitter at frequencies below 10 Hz is known as wander. High-frequency signals are more prone to jitter than low-frequency signals. The deviation in periodicity that constitutes jitter may be in […]
The difference between impedance analyzers and network analyzers
At first glance, impedance analyzers and network analyzers seem to do the same thing: Describe the impedance of whatever is connected to their inputs. This statement is true as far as it goes, but as you might expect, there are significant differences between the two types of instruments. Here’s a review of the basics. There […]
Exceeding 100 Gbps with a sub-terahertz 6G testbed
Here’s a look at testing necessary for super-high throughputs involved in the emerging area of 6G. Greg Jue, Keysight Technologies 6G research is in its early stages. The vision for what the International Telecommunication Union calls Network 2030 continues to take shape. While the industry is years away from starting the standards development process, subterahertz […]
Our second 5G Handbook is now available
Featuring 15 articles, the 2022 5G Handbook looks at private networks, timing, connectivity, latency, mmWaves, test, and other topics.
CAN XL trigger and decode software works on scopes
An oscilloscope-based automotive protocol trigger/decode solution (D9010AUTP) covers CAN XL (Controller Area Network eXtra Long) protocol that enables engineers to verify and debug low-speed automotive serial bus protocols and simplify the development and troubleshooting of systems including CAN/CAN FD (Flexible Data Rate) and CAN XL. CAN XL is the third-generation CAN standard in development by […]
Test setup simulates, characterizes, validates PCIe designs
An end-to-end PCIe test solution enables the simulation, pathfinding, characterization, validation and compliance testing of PCIe designs. To maintain performance goals and prepare for the PCIe 6.0 move to pulse amplitude modulation 4-level (PAM4), customers need a smooth transition from PCIe 5.0 to 6.0, where the integrity of PCIe measurements are backed by leading-edge tools […]
800G Ethernet test gear now supports multimode interfaces for data centers
A portfolio of high-speed digital 800G test solutions now enable the optical transceiver ecosystem to improve the power efficiency of components and modules used in data center equipment. Hyperscale data centers are adopting 800G, the latest data center connectivity technology, to address a rise in the use of cloud-native, 5G, artificial intelligence (AI) and internet […]
Radar scene emulator represents up to 512 objects as close as 1.5 m away
A Radar Scene Emulator enables automakers to lab test complex, real-world driving scenarios, accelerating the overall speed of test. Keysight’s full-scene emulator combines hundreds of miniature radio frequency (RF) front ends into a scalable emulation screen representing up to 512 objects and distances as close as 1.5 m. Using full scene rendering that emulates near […]
Tricks for pulling signals out of noise
Thermal noise, also known as Johnson-Nyquist noise, is generated by thermal agitation of charge carriers inside an electrical conductor or component regardless of any applied voltage. A small voltage can actually be measured across a wire segment that is at non-zero temperature and lying on a non-conductive surface. Apprentice electricians are puzzled by this phenomenon, […]
