Crystal Oscillator (XO) is quartz stabilized square wave generator with a CMOS output, operating off either 1.8, 2.5, 3.3 or 5.0 volt supply. The XO uses fundamental or 3 rd overtone crystals for output frequencies resulting in low jitter performance.

Temperature Compensated Crystal Oscillator (TCXO) is a quartz stabilized,clipped sinewave output or CMOS squarewave, temperature compensated oscillator, operating off either 2.8, 3.0, 3.3 or 5.0 volt supply. It is available in both metal and ceramic pack