Fox's new SMD HCMOS TCXOs feature a frequency range of 4 to 54 MHz with stabilities as tight as ±2.5 ppm over the -30 to 85°C operating temperature range, ±0.2 ppm over the supply voltage change, and ±0.2 ppm over the load change. Storage temperature is -40 to 125°C. Frequency tolerance is ±1.5 ppm at 25°C.
The FOX251 series features four models: the 3.3-volt FOX251C, 2.8-volt FOX251D, 2.5-volt FOX251G, and 1.8-volt FOX251L models to accommodate a wide variety of design specifications. All voltages are ±5% standard.
The RoHS-compliant oscillators offer an input current of 3.1 to 7.0 mA depending upon the model and frequency. Standby current is 10 µA. Output load is 15 pF. Typical phase noise at a 10 kHz offset is -145 dBc/Hz. The new TCXOs feature a gold termination finish.