FE-5680_datasheet

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Output frequencies for Options 02 are provided by the Digital Programmable Synthesizer. 416 The information in this table shows that the mean total frequency deviation over temperature is very small. The decrease in light, when the microwave frequency is equal to the sharply defined Rubidium frequency, is then converted electronically to an error signal with phase and amplitude information that is used to steer the VCXO via its control voltage and keep it on frequency at 50. In order to use this atomic transition, the Rubidium Physics Package incorporates a Rubidium cell, Rubidium lamp, and servo electronics. 33" WITH FAST WARM UP – LESS THAN 2 MINUTES FE-103A - CRYSTAL OSCILLATOR DOUBLE OVEN DESIGN WITH EXCELLENT STABILITY: 1X10-11/SEC FE-7923A - DISTRIBUTION AMPLIFIER AN ECONOMICAL, 10-CHANNEL SINEWAVE DISTRIBUTION AMPLIFIER OPERATING FROM 1 MHz THROUGH 10 MHz FEI Communications, Inc. After passing through the resonance cell, this light is incident upon a photocell. T= ± 5x10 -12 -10 12 -10 -11 OPTION 02 09 12 16 21 26 30 35 OUTPUT CHARACTERISTICS RS232 control* Square Wave Analog Tuning -80 dBc Spurious for ± 5 MHz 1. The second design is a wide temperature range device, which operates from -40 to +85°C, with less than 1E-10 frequency error. 5V rms into 50 ohm sinewave 1 x 10-11 (range 2 X 10-9) 1. This indicates that the result is limited by the stability of the Cs reference. This device is designed to operate over the temperature range -10 to +60°C, with less than 1E-10 frequency error. RUBIDIUM ATOMIC F R E Q U E N C Y S TA N D A R D S Low Cost Atomic Standards. The extra power required for the FE-5652A is needed for the thermo-electric circuit and the external reference lock circuitry. Once the FLL has been established, the system generates a loop-locked indication which can be monitored on pin 3. 255+ MHz Voltage Controlled Crystal Oscillator (VCXO) via a Frequency Lock Loop (FLL). The standard deviation values give an indication of the range of deviations to be expected amongst production devices. The FE-5652A operates at any temperature between -40 and +85°C, a temperature range required for outdoor, limited access, low maintenance telecommunication hardware. When the applied microwave frequency is equal to 6. 255+ MHz from the VCXO) from a defined center frequency (Rubidium atomic resonance) produce a DC output signal (control voltage). 6 Kgs FE-5680A 11W (Steady State) 32W (Peak) <5 min