Telecoms, Datacoms, Wireless, IoT


Versatile SMD TCXOs offer Stratum 3 stability

27 August 2003 Telecoms, Datacoms, Wireless, IoT

C-MAC MicroTechnology's versatile range of temperature compensated crystal oscillators (TCXOs) can operate at any output frequency between 1,0 and 80 MHz. Based on its Pluto temperature compensation IC, the CFPT-9050 series can fulfil the stability and frequency pullability requirements of all SDH/SONET clock requirements up to and including Stratum 3.

The CFPT-9050 comes in an FR4-based 14 x 9 mm surface-mount package with a footprint compatible with industry standard six-pad SOJ-20 devices. This small device can achieve Stratum 3 stability even at 77,76 MHz output thanks to special circuitry within the Pluto IC, which allows either the crystal's fundamental frequency or its third overtone to be selected. Besides offering stabilities well within ±0,3 ppm between 0 and +70°C, the CFPT-9050 can be specified for operating temperature ranges from -40° to +85°C, at ±1,0 ppm stability, or -55° to +105°C, at ±1,5 ppm.



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