Noise eXtended Technologies (Noise XT) announced the LNS-18, a general-purpose low-noise synthesizer that can be used as a signal source for driving up-converters and down-converters in defense and aerospace applications where phase noise is critical. “Current synthesizers’ best specifications in the X band are in the vicinity of –125 dBc/Hz at a 10-kHz offset. Noise XT’s LNS-18 breaks the –130-dBc/Hz barrier,” said Guillaume de Giovanni, president of Noise XT. “Phase noise often limits radar performance and satellite transmission bit error rate. Having a low-noise source in the lab can greatly help when designing and testing innovative products.”
Covering a frequency range of 4 GHz to 18 GHz, the LNS-18 provides phase noise of –132 dBc/Hz at a 10-GHz carrier and 20-kHz offset. Output level is +13 dBm (±2 dB), while nonharmonic spurious is less than –50 dBc from a 1-Hz to 1-kHz offset and less than –80 dBc above a 1-kHz offset. Optional features include level control, pulse modulation, GPIB interface, and low-frequency extension down to 8 MHz using ultra-low-noise frequency dividers (–165 dBc/Hz). An Ethernet port and EFC (electrical frequency control) input are also available.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.