September 24, 2013 Nihon Dempa Kogyo Co., Ltd. President: Hiroshi Takeuchi New product developed； OCXO with world-leading 3 ppb frequency temperature characteristic (20 × 20 mm) Nihon Dempa Kogyo Co., Ltd. (NDK) has developed a new Twin-OCXO ™ Series oven-controlled crystal oscillator (OCXO) with frequency temperature characteristics of max. ±3 × 10-9 in the temperature range from -40°C to +85°C, representing the highest performance level of any 20 × 20 mm-class unit. (PIN type: model NH20M20LB, dimensions: 20.0 × 20.0 × 10.5 mm; SMD type: model NH25M22TA, dimensions: 25.4 × 22.0 × 12.1 mm). This OCXO has been developed in response to higher demand for smaller electronic devices and more widespread use of surface mount devices (SMDs) for increasingly smaller communication equipment in base stations for mobile communications or optical transmission devices. To meet these needs, NDK has used its proprietary twin crystal technology of Twin-OCXO™, temperature control technology with digital signal processing and in addition a hermetic sealing package for excellent environmental-proof performance. The results produce the required compactness and even higher stability for reference frequency simultaneously. The OCXO covers the frequency range from 5 to 40 MHz, and is available with 12 standard frequency levels (10, 12.8, 13, 16.384, 19.2, 20, 25, 26, 30.72, 38.4, 38.88 and 40 MHz) so that customers can promptly test samples. Engineering sample delivery is scheduled for October 2013, and the start of mass production is scheduled for January 2014. Note1; NDK will showcase the new product at the CEATEC Japan 2013 event, held from October 1 to 5, at Makuhari Messe (Chiba city). (NDK booth: No. 2A60, Hall 2). Note2; Twin-OCXO™ is the NDK’s trademark of the OCXO using NDK’s proprietary twin crystal technology (trademark registration pending in Japan). Appearance Left : SMD type Right : PIN type Specifications and characteristics Outer dimensions Terminals PIN type: 20.0 × 20.0 × 10.5 mm SMD type: 25.4 × 22.0 × 12.1 mm PIN type: 9 Pads SMD type: 7 Pads Frequency range 5 to 40 MHz Standard frequencies 10, 12.8, 13, 16.384, 19.2, 20, 25, 26, 30.72, 38.4, 38.88, 40 MHz Frequency / temperature characteristics Max. ±3 × 10-9/-40 to +85°C Power consumption Typ. 1200 mW Supply voltage +3.3 V Long-term frequency stability Typ. ±50 × 10-9/year (based on frequency after 30 days operation) Output level LVCMOS For inquiries on other requirement specifications, please see contact information below. <Contact> Sales representative / Nihon Dempa Kogyo Co., Ltd. e-Mail : [email protected]