12 LVDS/24 CMOS Output Clock Generator with Integrated 1.6 GHz VCO AD9522-4
The AD9522-4 provides a multi‑output clock distribution solution with sub‑picosecond jitter performance. It features an on‑chip PLL and VCO that can be tuned from 1.4 GHz to 1.8 GHz, and it supports external VCO/VCXO inputs up to 2.4 GHz. The device offers 12 LVDS outputs (each configurable as two CMOS outputs) organized into four groups with programmable dividers and phase delay.
The part operates from a single 3.3 V supply, includes a non‑volatile EEPROM for configuration storage, and supports both SPI and I²C serial control. It is specified for industrial temperature ranges (‑40 °C to +85 °C) and provides extensive reference‑monitoring, holdover, and zero‑delay operation features for reliable high‑speed clock distribution.
| VCO Frequency Range | 1.4 GHz – 1.8 GHz |
|---|---|
| Maximum LVDS Output Frequency | 800 MHz |
| Number of LVDS Outputs | 12 |
| Phase Noise @ 1 kHz Offset (LVDS output) | -66 dBc/Hz |
| Power Supply Voltage (VS) | 3.3 V ±5 % |
| Operating Temperature Range | -40 °C to +85 °C |
The on‑chip VCO can be tuned from 1.4 GHz to 1.8 GHz.
The device provides twelve LVDS outputs, each of which can be split into two CMOS outputs.
Each LVDS output can operate up to 800 MHz.
It is specified for operation from –40 °C to +85 °C.