The AD9516-4 is a 14-output clock generator with integrated 1.6 GHz VCO. It features low phase noise, phase-locked loop, multiple input and output interfaces, etc.
The AD9516-4 is a 14‑output clock generator that integrates a PLL and VCO. It offers low phase‑noise and low jitter performance, supporting internal VCO operation from 1.45 GHz to 1.80 GHz and optional external VCO/VCXO up to 2.4 GHz. The device provides multiple output standards: six LVPECL outputs (three pairs) up to 1.6 GHz, four LVDS outputs (two pairs) up to 800 MHz, and eight CMOS outputs up to 250 MHz, each with programmable dividers and fine‑delay adjustment.
The chip is supplied in a 64‑lead LFCSP package and operates from a single 3.3 V supply (±5%). It is rated for industrial temperature range –40 °C to +85 °C and includes features such as reference monitoring, automatic holdover, and a serial control port for configuration. Detailed specifications cover power supply requirements, PLL characteristics, clock input/output parameters, timing, and noise performance.
| VCO Frequency Range (internal) | 1.45 GHz – 1.80 GHz |
|---|---|
| External VCO/VCXO Frequency Range (optional) | up to 2.4 GHz |
| Operating Temperature Range | –40 °C to +85 °C |
| LVPECL Output Frequency | up to 1.6 GHz |
| LVDS Output Frequency | up to 800 MHz |
| CMOS Output Frequency | up to 250 MHz |
| Additive Output Jitter (LVPECL) | 225 fs rms |
| Channel‑to‑Channel Skew (paired LVPECL) | < 10 ps |
The on‑chip VCO tunes from 1.45 GHz to 1.80 GHz.
Six LVPECL outputs (in three pairs) are available, each up to 1.6 GHz.
It is specified for –40 °C to +85 °C operation.