The AD9520-01 is a device that integrates 12 LVPECL and 24 CMOS output clock generators, with sub-picosecond jitter performance and a 2.8 GHz VCO. The device also integrates a phase-locked loop and a voltage-controlled oscillator, and supports SPI and I2C interfaces.
The AD9520-0 provides multi‑output clock distribution with ultra‑low jitter performance. It integrates a PLL and a voltage‑controlled oscillator (VCO) whose tuning range is 2.53 GHz to 2.95 GHz, and can accept an external 3.3 V/5 V VCO/VCXO up to 2.4 GHz. The device offers 12 LVPECL outputs (grouped in four sets) that can be re‑configured as up to 24 CMOS outputs, each with programmable divide‑by‑1‑to‑32 and phase delay.
The chip is supplied in a 64‑pin LFCSP package, operates from a single 3.3 V supply, and is rated for –40 °C to +85 °C industrial temperature range. Detailed specifications cover power supply limits, clock input and output parameters, timing characteristics, zero‑delay modes, and pin configurations. This manual is written in Chinese.
| VCO frequency range | 2.53 GHz – 2.95 GHz |
|---|---|
| Number of LVPECL outputs | 12 (grouped in four sets) |
| Supply voltage | 3.3 V (±5 %) |
| Operating temperature range | -40 °C to +85 °C |
| Maximum LVPECL output frequency | 2.4 GHz |
The on‑chip VCO can be tuned from 2.53 GHz to 2.95 GHz.
It provides twelve LVPECL outputs, arranged in four groups of three.
The device operates from a 3.3 V supply (±5 %).
It is rated for industrial temperatures from –40 °C to +85 °C.