Components: Ultra-Small And Thin Low-Noise TCXO: A Good Mix For Mobile Phones

Dec. 18, 2003

Measuring a mere 3.2 by 2.5 by 1.2 mm high, the NT3225 series surface-mount temperature-compensated crystal oscillator (TCXO) is well suited for mobile phones. Standard frequencies include 12.6, 13.0, 14.4, 19.2, 19.68, and 26 MHz. Features include a low phase noise of −137 dBc/Hz with a 1-kHz offset, frequency stability of ±2.5 ppm maximum over the operating-temperature range of −30°C to 85°C, and a 0.8-V p-p output voltage. It operates from 2.4 V dc ±0.1 V at 1.5 mA with a 10-kΩ load at 10 pF. Audio frequency control (AFC) characteristics are ±9 to ±15 ppm at 1.5 V, ±1 V. Aging characteristics are ±1 ppm/year. Price in 10,000-unit lots is $2.95 each (12.6-MHz unit). Delivery is within eight to 10 weeks.

NDK America Inc.www.ndk.com; (800) NDK-XTAL

About the Author

Roger Allan

Roger Allan is an electronics journalism veteran, and served as Electronic Design's Executive Editor for 15 of those years. He has covered just about every technology beat from semiconductors, components, packaging and power devices, to communications, test and measurement, automotive electronics, robotics, medical electronics, military electronics, robotics, and industrial electronics. His specialties include MEMS and nanoelectronics technologies. He is a contributor to the McGraw Hill Annual Encyclopedia of Science and Technology. He is also a Life Senior Member of the IEEE and holds a BSEE from New York University's School of Engineering and Science. Roger has worked for major electronics magazines besides Electronic Design, including the IEEE Spectrum, Electronics, EDN, Electronic Products, and the British New Scientist. He also has working experience in the electronics industry as a design engineer in filters, power supplies and control systems.

After his retirement from Electronic Design Magazine, He has been extensively contributing articles for Penton’s Electronic Design, Power Electronics Technology, Energy Efficiency and Technology (EE&T) and Microwaves RF Magazine, covering all of the aforementioned electronics segments as well as energy efficiency, harvesting and related technologies. He has also contributed articles to other electronics technology magazines worldwide.

He is a “jack of all trades and a master in leading-edge technologies” like MEMS, nanolectronics, autonomous vehicles, artificial intelligence, military electronics, biometrics, implantable medical devices, and energy harvesting and related technologies.