5 October 2011

M/A-COM Tech adds VCOs with low phase noise, wide tuning range, and low current consumption

M/A-COM Technology Solutions Inc of Lowell, MA, USA (which makes analog semiconductors, components and subassemblies for RF, microwave and millimeter-wave applications) has launched a new set of voltage controlled oscillators (VCOs) suited to point-to-point radio, point-to-multipoint radio, communications systems, and low-phase-noise applications. The firm says that the indium gallium phosphide (InGaP) heterojunction bipolar transistor (HBT)-based VCOs are easily integrated into a phase lock loop (PLL), using a divide-by-two output.

Packaged in a lead-free 5mm, 32-lead PQFN package, the VCOs feature an integrated buffer amplifier. The package also features low lead inductance. Operating with a case temperature at or below +85°C, the VCOs allows for a mean time before failure (MTBF) of 2,500,000 hours. With a 5.0V bias supply, they operate in the 8.4-11.8GHz frequency band.

The 9.2-10.2GHz MAOC-009871, 11.0-11.8GHz MAOC-009872 and 8.4-9.25 GHz MAOC-010334 meet the high-performance requirements of high-capacity digital radios by optimizing for low phase noise (-113, -112 and -115dBc/Hz, respectively, at 100kHz offset), wide tuning range (with a tuning sensitivity of 0.18, 0.19 and 0.14 GHz/V, respectively, at the RF port), and low current consumption (185, 165 and 168mA, respectively).

“The MAOC-009871, MAOC-009872 and MAOC-010334 are expansions to M/A-COM Tech’s point-to-point VCO product family,” says product manager Jack Redus. “Low phase noise and low DC power consumption are key product features that are beneficial for cellular backhaul radios,” he adds. “The full product family consists of 15 standard product VCOs covering 5.7-14.2GHz. Custom frequency ranges are available upon request.”

Tags: M/A-COM Tech InGaP HBT VCOs

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