Oscillator achieves accuracy over industrial temperature range

Designed for precision time keeping, Epson’s RA8900 automotive DTCXO real-time clock (RTC) uses digitally temperature-compensated crystal oscillator (DTCXO) technology to achieve ±3.4 parts per million at the temperature range of -40 to +85 degree C (or nine seconds per month).

Epson’s RA8900 includes an integrated crystal and features low power of 0.7 micro A (typical) back-up current. The high accuracy is essential for precise time keeping, as required by car clocks, infotainment, battery management, and other automotive applications.

To keep the time counter running even at main power failure, Epson’s RA8900 supply voltage of 2.5 to 5.5V can detect the loss of main power source and automatically switch to a back-up supply from a battery or super-capacitor with a supply voltage of 1.6 to 5.5V.

The RA8900 is offered in a small package measuring 3.2 x 2.5 x 1.0mm3 and is manufactured on a dedicated automotive line. It meets all applicable automotive quality standards, assures Epson, including AEC-Q200 grade 3, ISO9001, and TS16949.

Epson has a portfolio that ranges from inkjet printers and digital printing systems to 3LCD projectors, watches and industrial robots. The company is focused on driving innovations and exceeding customer expectations in inkjet, visual communications, wearables and robotics.

Led by the Japan-based Seiko Epson Corporation, the Epson Group comprises more than 76,000 employees in 87 companies around the world.

Epson Europe Electronics is a marketing, engineering and sales company and the European Headquarters for electronic devices of the Seiko Epson Corporation, Japan. It has been headquartered in Munich/Germany since 1989 and has 50 employees, and several European sales representatives and a European-wide network of distributors. Epson Europe Electronics provides value added services for semiconductors, sensors, sensing systems and timing devices targeted to all markets like industrial, automotive, medical and communication. Epson products are recognised for energy saving, low power, small form factors and rapid time to market.


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