The AD9518-4 is a 6‑output clock generator with an integrated PLL and VCO. It offers low phase noise and jitter, with LVPECL outputs up to 1.6 GHz and an on‑chip VCO that tunes from 1.45 GHz to 1.80 GHz. The device operates from a single 3.3 V supply and supports external VCO/VCXO up to 2.4 GHz.
Typical applications include high‑speed networking line cards, data converter clocking, high‑performance wireless transceivers, and test instrumentation. The datasheet provides detailed specifications, pin descriptions, timing diagrams, and configuration guidance for designers.
| On‑chip VCO frequency range | 1.45 GHz – 1.80 GHz |
|---|---|
| LVPECL output frequency (max) | 2.95 GHz |
| Supply voltage (Vs) | 3.3 V ±5 % |
| Operating temperature range | -40 °C to +85 °C |
| Additive output jitter | 225 fs rms |
| LVPECL output capability | 6 outputs (3 pairs) up to 1.6 GHz |
The device provides an additive output jitter of 225 fs rms.
It operates from a 3.3 V supply with a ±5 % tolerance (3.135 V – 3.465 V).
The chip provides six LVPECL outputs arranged in three pairs, each capable of up to 1.6 GHz.
It is specified for operation from –40 °C to +85 °C.