Phase-locked oscillator suits digital radio needs

A new fully integrated InGaP HBT phase-locked oscillator covers point-to-point/multipoint, test equipment, industrial and Vsat subscriber applications from 14.7 to 15.4GHz.

Hittite Microwave Corp has developed a fully integrated InGaP HBT phase-locked oscillator (PLO) surface mount MMIC for point-to-point/multipoint, test equipment, industrial and Vsat subscriber applications from 14.7 to 15.4GHz.

The HMC535LP4 GaAs InGaP HBT phase-locked oscillator MMIC is a fully integrated PLO incorporating a VCO, phase frequency-detector (PFD), fixed modulus prescaler, loop amplifier and a digital lock detect (LD) output.

The HMC535LP4 delivers +9dBm output power from 14.7 to 15.4GHz, with very low single sideband phase noise of -110dBc/Hz at 100kHz offset.

Output power and phase noise performance are excellent over temperature and shock due to the monolithic construction.

Compared to discrete PLO approaches, the HMC535LP4 significantly reduces the component count and board space required to produce a low-phase-noise local oscillator signal as required by high-bitrate digital radios.

The HMC535LP4 operates from +5 and +12V supply voltages, consumes less than 2W of power and is housed in a 4 x 4mm SMT leadless QFN package.

A RoHS compliant version is available as the HMC535LP4E.

Sample and production quantities are available from stock and may be ordered from MRC Components.

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