The ULN-1G module is a 1GHz crystal oscillator with internal power supplies and RF amplifier, and is ideally suited to drive modern DDS, ADC, or harmonic Comb-Filters without the need of external amplification. The ULN-1G is an SMT module for simple pick-and-place applications using an industry-standard footprint. The ULN-1G includes an ultra-low-phase-noise crystal oscillator that can be ordered with 800MHz to 1.2GHz frequency range (1GHz standard). Included is an active power supply with DC-DC switching and filtering of external power supply noise, and it operates from 6V to over 18V DC with less than 1.1W power consumption typical. The ULN-1G also includes 7th order low-pass and high-pass filters to supress harmonics and sub-harmonics, and it provides a regulated +22dBm output power that has less than +/-0.5dB variation over the entire temperature range typically.