Valpey Fisher creates white papers that present latest developments in frequency control technology. Our recent papers include:
Synchronous Ethernet Timing Solutions 
With Narrow Loop Bandwidth and Ultra Low Output Jitter.
Considerations When Specifying Frequency Control Modules and Oscillators to Optimize System Jitter and Phase Noise
Oscillators are like cars. Some are powerful, sleek (expensive) performers, some are just economy clunkers (clockers), and most are in between.
OCXOs for portable equipment
Is a directly heated oscillator right for you?
A Jitter Attenuator For Synchronous Ethernet Applications
Recently introduced VFJA905 Jitter Attenuator provides two LVCMOS outputs with a frequency of 25 MHz that can be locked to an input reference frequency.
New 1.8 Volt Hi-Rel Oscillators for Mission Critical Systems 
The paper focuses on the introduction of Hi-Rel low supply voltage crystal oscillators for mission critical system.
Crystal Oscillators for Today's Defense Electronic Systems
The paper demonstrates how techniques developed for upgrade to Hi-Rel performance status of frequency control components provide a blueprint that can be used successfully for other component manufacturers.
Long-Term Frequency Stability of HFF CrystalsSealed with High Vacuum Technology
This work is devoted to the results of testing frequency stability of HFF crystal resonators fabricated with inverted mesa-structure procedure and sealed in HC-45 holders with high vacuum process.
Thermodynamic Aspect of Short-Term Frequency Stability of Directly Heated Resonators
The directly heated resonator (DHR) technology provides significant reduction in warm-up time, size, and power consumption of OCXO thanks to employing thin film heater and thermistor directly deposited on the crystal surface. |