High-precision IC quartz oscillator

Development of satellite communication and navigation, along with adoption of synchronous techniques for data transmitting and processing, promotes an enhanced demand for compact high-stability quartz oscillators of TCXO and VCXO-types. Solving a topical problem-to minimize quartz oscillator dimensions-is presented based on development of a dedicated IC. Considered is an approach to realization of a self-exited oscillator using differential amplifiers and a model of two-terminal networks with a negative impedance. Described are the IC main stages. The reduction of TCVCXO volume down to 15 cm³ is attained at instability for frequency of (3-20) MHz with Allan´s variance up to (2-5).10^-12