HB LED modules target high-W halogen, metal-halide lamps
The XLM LED modules can be driven at 1 A to provide 3,000 or 4,000-lm outputs, providing light levels sufficient to replace high-wattage halogen and metal halide lamps while consuming only 41.6 W. Available in color temperatures of 3,000K, 3,500K, and 4,000K, all versions have a CRI greater than 80 to provide good color rendition.
Driven at 1 A, the XLM 3000lm and 4000lm versions have an efficacies of 72 and 67 lm/W, respectively. For increased efficacy, the modules can be driven at 350 mA, in which case their respective efficacies are 93 and 86 lm/W, their outputs are 1250 and 1650 lm, and their power consumption is 13.4 and 19.2 W.
Each unit has two channels that can be driven in series, or individually for greater lighting control. The modules are designed for easy integration into daylight-harvesting, dimming, and demand-response building automation schemes, and suit wall-washing, high-ceiling-accent, indirect-up-lighting, and architectural-flood-lighting applications. The housing consists of die-cast aluminum with a sealed glass aperture, and is IP66 rated. (Contact Ron Steen for pricing — available now.) By Richard ComerfordXicato, San Jose, CA
Ron Steen 847-525-5048
ron.steen@xicato.com
www.xicato.com
PLL chipset raises bar on spurious and phase noise performance
The HMC983LP5E dc to 7 GHz fractional-N divider and frequency sweeper and the HMC984LP4E digital phase-frequency detector and charge pump are offered as a high performance PLL chipset solution targeted at PLL and frequency modulated continuous wave (FMCW) sweeper applications requiring ultimate performance. The HMC983LP5E is claimed to integrate the industry’s largest programmable 48-bit ∆∑ modulator which allows the combined PLL to achieve unparalleled fractional frequency resolution of 180 nHz. A built-in frequency sweeper enables the combined PLL to generate identical, coherent, FMCW frequency sweeps that can be linear, user-defined, automatic or triggered.
The HMC984LP4E integrates a low noise phase detector and charge pump capable of operating at high phase detector frequencies of 125 MHz in fractional mode, and 175 MHz in integer mode. The PLL chip set phase noise figure-of-merit performance is –231 dBc/Hz in integer mode and –227 dBc/Hz in fractional mode. Altough the parts can be used separately in stand-alone applications, partitioning the PLL building blocks into two distinct devices achieves superb isolation and results in market leading spurious emissions performance exceeding –60 dBc/Hz inside the loop bandwidth.(ea/10-99, HMC983LP5E, $39;HMC984LP4E, $32 — available now)
Module/software make iPhone a spectrum analyzer/ power meter
Made in Taiwan by Oscium, the WiPry-Combo module and software turn an iOS device (iPad, iPod Touch, and iPhone) into an spectrum analyzer and dynamic power meter with a touch interface. Data is collected at up to 12 MSa/s and can be logged in csv format, while screenshot results can be emailed via an iPhone host.
In spectrum-analyzer mode, the instrument can identify interference or open channels in the 2.4-GHz ISM band (2.400 to 2.495 GHz), or unauthorized WiFi access points. It measures signals from −40 dBm to +20 dBm with an amplitude resolution of 2.0 dBm and a bandwidth resolution of 1 MHz with a 200-ms sweep. As a dynamic power meter mode, the device works as a 100 MHz to 2.7GHz RF power meter graphically displaying RF power levels. Time scale is adjustable from 2 μs/div to 1 s/div and amplitude display is from −45 dBm to +20 dBm with a resolution of 2.0 dBm.
Display configurations can be saved for on-the-go measurements, and iOS’s two finger “stretch” allows zooming in and out of scaling without the need for buttons or knobs. A demo package that does not require the module is available free at Apple’s AppStore. ($199.95 — available now in the U.S. from Saelig.)
By Richard Comerford
Saelig, Pittsford, NYInformation 585-385-1750
info@saelig.com
www.saelig.com
