The LMK6Bx device is an ultra-low jitter, fixed frequency oscillator achieving 9.3fs at 625MHz. This device incorporates the BAW as the resonator source. The device is factory programmed per specific operation mode, including frequency, output type, function pin, and frequency stability. The high-performance clocking, mechanical stability, flexibility, and small package options for this device are designed for reference and core clocks in high-speed SerDes used in telecommunications, data and enterprise network, and industrial applications.