The DSC1123CI1-200.0000T is a 200 MHz LVDS output XO from Microchip's DSC1123 series, built on a MEMS resonator rather than a quartz crystal. The LVDS differential output pairs directly with high-speed SERDES, FPGA reference clocks, and Ethernet PHY devices that expect a low-jitter 200 MHz source.
Supply range and output control
The supply voltage spans 2.25V to 3.63V, covering 2.5V and 3.3V rails without an extra LDO. The Enable/Disable function on pin 1 lets the system gate the clock during low-power sleep modes; the disable current drops to 22 mA max from the 32 mA max active draw.