ANALOG DEVICES AD9520-0 chinese handbook
Datasheet
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.