VCXOs Tout ±1600 PPM Pull Range and 1 Percent Linearity

摘要

SiTime's MEMS-based SiT3808 and SiT3809 VCXOs offer sub-picosecond jitter as well as 10 times better pull range and linearity than quartz VCXOs, according to the company. Programmable features include frequency, voltage, stability pull range and drive strength. The SiT3808, which operates between 1 MHz and 80 MHz and the SiT3809, which operates from 80 MHz to 220 MHz have the following features: any frequency within the operating range with six decimal places of accuracy; a wide pull range, up to ±1600 PPM (pull ranges up to ±200 PPM are also available); linearity of <1 percent; tuning slope (Kv) consistency; and frequency stability as low as ±10 PPM.