WEMA10: Frequency Controlled Oscillator (FCXO) replaces VCXO in Jitter-Attenuation Applications

Abstract
Next-generation communication and radar platforms demand a low-jitter, high frequency clock synchronized to a global system reference. A typical approach uses a PLL (Phased Lock Loop) with a VCXO (Voltage-Controlled Crystal Oscillator). Qorvo introduces a fully digital Frequency Controlled Oscillator (FCXO) that delivers a single high-frequency output clock synchronized to a system reference. The device replaces both the PLL and VCXO with one small package device operating up to 2.2 GHz, enabling easy distribution across multiple modules in large phased-array antenna systems. The oscillator’s low jitter performance is validated with Error Vector Magnitude (EVM%) measurements of modulated signals.