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Dual-Output VCOs to 8.8 GHz

Tue, 11/16/2010 - 7:22am


Endwave Corporation has announced the release of its EWV0800YF series of voltage-controlled oscillators (VCOs) with dual outputs with total frequency coverage of 7.3 to 8.8 GHz and 3.65 to 4.4 GHz. Based on 2-µm InGaP/GaAs heterojunctionbipolar-transistor (HBT) technology, the monolithic-microwaveintegrated-circuit (MMIC) oscillators feature on-board divide-by-two prescalers to create a second tuned output range at one-fourth the frequency of the fundamental outputs. For example, Model EWV0801YF tunes with a fundamental-frequency range from 7.3 to 8.3 GHz with typically +13 dBm output power and a divided frequency range of 3.65 to 4.15 GHz with typically +8 dBm output power. The VCO tunes with control voltages of 2 to 13 V and supply current of typically 260 mA. It achieves outstanding phase noise of -116 dBc/Hz offset 100 kHz from the carrier in either band, with subharmonic levels of typically -42 dBc and second-harmonic levels of typically -10 dBc. Pushing is typically 10 MHz/V for a tuning voltage of 5 V while pulling into a 2.0:1 VSWR load is typically 5 MHz peak to peak. The frequency drift with temperature is typically only 750 kHz/°C for a wide operating temperature range of -40 to +85°C.

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