April 26, 2024
Ultra-Low Phase Noise GaAs HBT VCOs

mmTron has released two VCOs for aerospace/defense and high-performance point-to-point radio systems. The GaAs/InGaP HBT MMICs integrate negative resistance devices and varactor diodes with an on-chip resonator. Monolithic integration assures excellent phase noise performance over temperature, shock, and process variation.

The TMC934D MMIC covers 23.3 to 27.4 GHz, achieving –98 dBc/Hz typical phase noise at 100 kHz offset. Power output is +12 dBm with a +5 V bias.

The TMC928D MMIC covers 13.32 to 15.20 GHz, with –112 dBc/Hz typical phase noise at 110 kHz offset. Its power output is 8 dBm with +5 V bias.

Both VCOs are available as die or can be provided in QFN packages. No external matching components are required.

Custom VCOs for other frequency bands can be developed and can include on-chip prescalars. Contact us to discuss your requirements: contact@mmtron.com