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Valpey Fisher has developed a series of products for Sync-E applications that specifically address both Jitter Transfer and Jitter Generation issues. VF products use a “crystal based” internal reference clock and an extremely narrow loop filter to produce the best performance solutions available in the industry today.
This white paper summarizes the technology options for supporting voice and short message service (SMS) in LTE, including circuit switched fallback (CSFB), SMS over SGs, and voice over LTE (VoLTE).
A common function present in most RF and Microwave systems is the electronically controlled variable attenuator. At Valpey Fisher Corporation, improvements to two key areas of the MCM approach have been made resulting in lower attenuation error.
To prevent unwanted flow, many PCB designers will install dams formed of glass or other dielectric materials to keep solder from shorting active areas on a circuit. But there is another solder damming technique being rapidly adopted—laser ablation. Considered to be more accurate and consistent than traditional solder damming methods.
This application note discusses WLAN standard IEEE 802.11n. It first describes the most important amendments to previous releases and the ambitious new measurement tasks. Then, it describes how to deal with these tasks using Rohde & Schwarz instruments.
Once the exclusive realm of scientific research and military use, wireless systems operating in the upper millimeter wave (MMW) regions are now providing cost-effective solutions for high-capacity commercial data transport needs. While MMW technology is nothing new, the growing volume of commercial use with associated economies of scale has significantly reduced system costs, making MMW systems more attractive to the general consumer.
This one page technical overview includes cut away descriptions of the mechanical engineering behind this innovative high-performance SMA. Additionally, performance curves are analyzed for typical VSWR through 20 GHz.
Amplifiers used in wireless infrastructure receiver applications have the key requirements of low noise, high linearity, and unconditional stability. In order to meet these needs, Skyworks has developed a new family of low noise amplifiers (LNAs) implemented in 0.5 μm enhancement mode (E-Mode) pHEMT.
