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Hittite Microwave公司新近开发出一对GaAs/InGaP HBT MMIC压控振荡器(VCO),VCO与电阻、负阻器件、变容二极管及缓冲放大器集成,其工作频率为5.0～6.1GHz。这两种型号为HMC430LP4和HMC431LP4的VCO适用于C波段无线局域网、甚小孔径终端、点到点无线电设备等。上述两种型号的VCO无需外部元件,使用+3V单电源,耗电27mA。其封装为塑料表面安装封装。 HMC430LP4在5.0～5.5GHz、100KHz相噪偏移下的缓冲输出功率为+2dBm,相噪仅—103dBc/Hz;HMC431LP4在5.5～6.1GHz、100KHz相噪偏移下的缓冲输出功率
Hittite Microwave recently developed a pair of GaAs / InGaP HBT MMIC voltage-controlled oscillators (VCOs). The VCO integrates resistors, negative resistance devices, varactors and buffer amplifiers with operating frequencies of 5.0 to 6.1 GHz. The two VCOs, HMC430LP4 and HMC431LP4, are suitable for C-band wireless LANs, VSATs, point-to-point radios and more. Both VCOs do not require external components and use a single + 3V power supply, consuming 27mA. Its package is a plastic surface mount package. HMC430LP4 has a buffered output power of +2 dBm and a phase noise of only -103 dBc / Hz at a phase shift of 5.0 kHz to 5.5 GHz with a phase offset of 100 kHz. The buffered output power of the HMC431LP4 at a phase shift of 5.5 kHz to 6.1 GHz with a phase shift of 100 kHz