Miniature oscillators have low phase noise for avionics
Surface mount oscillators with “exceptionally low” phase noise make up the QTCC578 series, suitable for a range of telecomms and avionics applications. The miniature crystal oscillators from Q-Tec are designed to meet the demand in high-performance, low voltage applications with a phase noise floor of -155dBc/Hz.
The QTCC578 oscillators have supply voltages of 3.3 and 2.5V Dc. They are built using a miniature strip AT quartz crystal in a low profile ceramic, hermetically sealed package with gold plated contact pads. It measures 5.0 x 7.0 x 1.5mm.
The QTCC578 series oscillators are LVDS logic differential output crystal oscillators. Models are available with frequency set to between 100,000 and 250,000MHz, with temperature range/frequency stability selectable from ±25ppm at -40 to +85 degrees C to ±100ppm at -55 to +125 degrees C.
The QTCC oscillators are suitable for low phase noise in commercial applications like fibre channel, telecomms, Sonet, Ethernet/SynchE and microprocessor clock. According to Scott Sentz, Q-Tech’s director of sales and marketing: “This compact, reliable device is also effective in mil/aero applications, such as navigation, avionics and COTS.”
QTCC578 Series oscillators are ECCN: EAR99-classified, lead-free and RoHS compliant. Military screening per MIL-PRF-55310 is also available.
The oscillators are available on eight weeks lead time, without the optional MIL-PRF-55310 screening. Many standard frequencies are in stock.
Q-Tech was founded in 1972 to provide crystal clock oscillators and frequency control solutions for companies with demanding applications. The US-based company manufactures qualified products to MIL-PRF-55310 as well as ultra-high reliability standards such as Aerospace Corporation TOR (GPS III) and NASA GSFC specifications. The company services the military, aerospace, down-hole and deep space industries. It is certified to the AS9100 and ISO 9001 Quality Management Systems. Q-Tech has sales capabilities throughout North America, Europe, and Asia.
