7C SMD CMOS CXO Oscillators TXC 7C SMD CMOS CXO Oscillators are ultra-small, high precision SMD seam-sealed clock crystal oscillator units. The 7C series is designed for automatic mounting and reflow soldering. These TXC 7C oscillators can utilize a tri-state stand-by function for output and have a supply voltage range of 1.8V to 5.0V. These highly stable devices offer low jitter and low power consumption. Applications include wireless communication sets, PDAs, and DSCs.