Crystek has released its Model CVS575S-500, a 500MHz Voltage Controlled SAW (surface acoustic wave) Oscillator, or VCSO. SAW crystal technology provides low-noise and low-jitter performance with true sinewave output.
Ever-tightening regulations require a power factor of at least 0.9 and high efficiency for offline power supplies. This new switching-converter topology uses a flyback transformer and accomplishes both these goals in one stage.