Crystal Oscillator Module IC

The CF5020 series are high-frequency, 3rd overtone crystal Oscillator module ICs. They incorporate an oscilla- tor circuit and an output Buffer that operate at high frequency on a single chip. The Oscillator circuit employs CMOS inverters and a built-in damping resistor RD, reducing the crystal current compared with existing devices. The damping resistor RD is fabricated using NPCs unique high-precision thin-lm resistor technol- ogy, which suppresses Oscillator characteristic variations due to changes in temperature and voltage to a mini- mum. The CF5020 series CAN be utilized to construct stable, high-frequency, 3rd overtone crystal Oscillators By Seiko NPC Corp.