Microchip Technology has introduced the latest EX-423 Evacuated Miniature Crystal Oscillator (EMXO) – a highly reliable and precise timing technology developed specifically for the toughest space and power-saving applications. This new product builds on the proven success of its predecessor EX-421 series, offering an even more impressive level of RF performance in an unprecedentedly small-sized 13 mm x 13 mm housing.
Precision Built for Harsh Conditions
The EX-423 is designed with high reliability in mind for harsh environments, providing the best possible thermal insulation and mechanical ruggedness. The oscillator itself is hermetically sealed in a high-vacuum enclosure for optimal frequency stability by insulating all internal parts from temperature changes. Moreover, it utilizes a four-point mounting mechanism for the quartz crystal to improve its shock resistance and minimize g-sensitivity.
As such, the EX-423 is suitable for a wide range of industries, among which are:
Defense & Aerospace: Military radios, satellites.
Industrial & Medical: Ocean Bottom Node (OBN) seismic sensors and high-precision medical devices.
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“When developing the EX-423, we focused on the key parameters designers use to evaluate high‑performance reference oscillators,” said Randy Brudzinski, corporate vice president of Microchip’s frequency and time systems business unit. “Delivering this level of performance in a rugged, small footprint helps customers simplify designs without compromising timing accuracy.”
Superior Performance with Minimal Power Consumption
The EX-423 provides an industry-leading combination of ultra-low phase noise, exceptional short-term stability (Allan deviation), and rapid warm-up times. In spite of the high quality of its outputs, this unit is designed with efficiency in mind, making it perfect for battery-powered and portable equipment.
The EX-423 operates within a normal 10–20 MHz frequency range and only uses 1W of energy when warming up initially; once it is running continuously at +25 °C, it only requires 0.2W of energy.
