ADCLK946 is an ultrafast clock fanout buffer designed by Analog Devices for high frequency applications.
The ADCLK946 clock fanout buffer from Analog Devices provides six full‑swing LVPECL output drivers and supports a wide range of input standards including LVPECL, CML, CMOS, LVDS and ac‑coupled signals. It operates up to 4.8 GHz and delivers ultra‑low jitter (75 fs rms broadband) for high‑performance timing applications.
The device is supplied in a 24‑lead LFCSP package, works over an industrial temperature range (‑40 °C to +85 °C), and includes on‑chip terminations, reference voltage pins, and bias options for both differential and single‑ended inputs. Detailed electrical characteristics, thermal performance data, and layout guidelines are provided for PCB designers.
| Maximum operating frequency | 4.8 GHz |
|---|---|
| Broadband random jitter | 75 fs rms |
| Supply voltage requirement | 2.97 V – 3.63 V (3.3 V ± 10 %) |
| Input high‑level voltage | 1.6 V |
| Output high‑level voltage (LVPECL) | 1.26 V |
| Operating temperature range | ‑40 °C to +85 °C |
| Number of LVPECL outputs | Six |
The ADCLK946 can operate up to 4.8 GHz.
It provides six full‑swing LVPECL (ECL) output drivers.
The device requires a 3.3 V supply, typically between 2.97 V and 3.63 V.
It is specified for operation from –40 °C to +85 °C.