OCXO Oscillators come with DSP technology for precise temperature control.
Press Release Summary:
Available in NH20M20LB and NH37M28LK models, OCXO Oscillators come in hermetically-sealed metal enclosure. Designed in 5 to 40MHz frequency range, NH20M20LB offers long-term +1x10-9/day frequency stability. Having +0.2x10-9/day (max) frequency stability, NH37M28LK offers 1µs/8h Holdover. NH20M20LB comes in 21.5.0 x 21.5 x 11 mm and NH37M28LK measures 37.0 mm x 28 mm x 16 mm. Both oscillators are operated in 40 to +85°C temperature range.
Original Press Release:
High-Precision OCXO Oscillators Enhance Performance of Base Stations, High-End Routers
Two new types deliver best-in-class temperature characteristics and stability.
NDK’s NH20M20LB and NH37M28LK High-Precision Oscillators are designed to raise the bar for frequency accuracy in base stations for mobile communications systems, high-end routers, test and measurement equipment and other synthesizer applications. The NH25M22TA is available for SMT applications. The NH37M28LK and NH20M20LB each have through-hole PC mounting pins. The use of proprietary DSP technology for precise temperature control delivers excellent frequency stability over a -40 to +85°C operating range, with very low phase noise.
Each OCXO is packaged in a hermetically-sealed metal enclosure for maximum environmental performance and reliability. For applications centering on a 10MHz timebase, the NH37M28LK offers the highest performance, with a long-term frequency stability of +0.2x10-9/day (max) or +50 x10-9/year (max), after 7-days operation. Holdover is typically 1µs/8h. Fine frequency adjustments can be made by digital control methods (I2C) or voltage control.
The NH20M20LB is available in a choice of 12 common frequencies within a range of 5 to 40MHz. Custom frequencies are also available for volume applications. The variety of available output frequencies allows additional application in optical transmission systems, such as a local oscillator with a coherent receiver circuit. Long-term frequency stability is also excellent: +1x10-9/day (max) or +80 x10-9/year (max).
The OCXOs are available with a CMOS output and have a duty cycle of 45 to 55%, with a load impedance of 15pF. Both devices are RoHS Compliant and Pb Free. The NH20M20LB measures 21.5.0 mm x 21.5 mm, with a profile height of 11 mm. The NH37M28LK has a footprint of 37.0 mm x 28 mm with a height of 16 mm.
In production quantities, prices start at $50.00 for the NH20M20LB and $90 for the NH37M28LK. Delivery: 4-6 weeks for samples; 14 weeks for OEM quantities.
For more information, contact: NDK America, 425 N. Martingale Road, Suite 1330, Schaumburg, IL 60173, U.S.A.: TEL: 1-847-852-4165: FAX: 1-847-517-1209: www.ndk.com; email sales@ndkxtal.com
NDK is a major manufacturer and supplier of crystal devices with a vast array of applications that are essential components in virtually all electronic equipment. The company is also applying its crystal technologies to sensors and a full spectrum of new high-value-added components and products with the aim of achieving sustained business growth as a comprehensive manufacturer of frequency control devices.
Contact:
Morrie Goldman (Definitive Marketing)
847-424-1000
NDK Contact: Toshiyuki Sakamoto
