Microchip Technology has launched the EX-423 Evacuated Miniature Crystal Oscillator (EMXO), a compact, low-power timing solution designed for applications that demand high stability, accuracy and long-term reliability. Building on the company’s EX-421 portfolio, the EX-423 delivers high RF performance in a low-profile 13 mm x 13 mm package for space- and power-constrained designs.
Ruggedized for demanding environments, the EX-423 is sealed in an ultra-high vacuum designed to provide optimal thermal insulation and help improve frequency stability. Its quartz crystal uses a four-point mount to enhance shock survivability and reduce g-sensitivity, making it well suited for GPS/GNSS tracking, military radios, medical devices, Ocean Bottom Node (OBN) seismic systems, test and measurement equipment and satellite communications.
“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.”
The EX-423 combines ultra-low phase noise with tight temperature control, strong short-term stability (Allan deviation), fast warm-up, and long-term frequency stability. Operating over a standard 10–20 MHz frequency range, the device consumes 1W during warm-up and as little as 0.2W at +25 °C in steady state, helping extend battery life while maintaining a clean, stable reference under specified operating conditions.
Microchip offers an extensive portfolio of clock and timing systems from miniature component oscillators to small plug-in timing server cards to multi-rack time scale systems. Recognized as a contributor to the world’s time, Microchip’s timing solutions are trusted, reliable and resilient. The EX-423 EMXO is now available for purchase.
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Click here to learn more about EX-423 EMXO from Microchip Technologies.