Voltage-Controlled Oscillators (VCOs) generate an output frequency that varies with an applied control voltage — the essential frequency-tuning element in PLLs (Phase-Locked Loops), frequency synthesizers, modulators, and local oscillators (LOs) for RF communication systems, test instruments, and radar equipment. Our VCO inventory covers fundamental and harmonic VCOs, VCXOs (Voltage-Controlled Crystal Oscillators), and VCO modules from Crystek (CVCO series), Z-Comm, Mini-Circuits (SYN series), Matrix (MOS series), and Renesas (F100 series) — spanning frequencies from 50MHz to 18GHz, tuning voltages from 0.5V to 12V, and phase noise performance from –80dBc/Hz to –120dBc/Hz at 10kHz offset.
Specific VCOs for cellular infrastructure (700MHz–2.7GHz bands), point-to-point microwave backhaul (5.8GHz, 11GHz), and C/Ku/Ka-band satcom are frequently on long lead times or discontinued. Welllinkchips stocks common VCO types and can source hard-to-find frequency-specific VCOs needed for legacy telecom and radar equipment repair.
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