GENERAL DESCRIPTION

The AD9516-0 generates up to fourteen output clocks from a single input reference frequency. Integrated on chip is a complete PLL with VCO, programmable dividers, adjustable delay blocks, and multiple output logic stages. Sub-picosecond jitter performance is maintained using on-chip 2.60 – 2.95 GHz VCO. The AD9516 also supports the use of an external VCO/VCXO/VCSO up to 2.4 GHz.

FEATURES

Low Broadband Jitter, < 500 Femtoseconds RMS

On-Chip 2.60 GHz – 2.95 GHz VCO

Low Phase Noise, Integer-N Frequency Synthesizer

Digital or Analog PLL Lock Detect

Programmable Delays in R and N path

Supports Internal or External VCO

Two Reference Clock Inputs, A and B

Frequencies to 250 MHz

On-Chip Reference Clock Monitors

Auto and Manual Switchover, Holdover

Up to 14 Low Jitter Clock Drivers

Six LVPECL Outputs Operate to Max VCO Frequency

Four/Eight LVDS/CMOS outputs run 1 GHz/250 MHz

Programmable Dividers with Phase Offset

Programmable Delay on Four Channels

Serial Control Port

64-lead LFCSP package

APPLICATIONS

Low Jitter Clock Generation and Clock Distribution

Wired and Wireless Infrastructure

Base Stations, Optical Networks, Cable Head-Ends

Instrumentation and Imaging

Test Equipment, ATE

Clean Clocks for ADCs, DACs, DDSs, DDCs, DUCs, MxFEs

Clock Cleanup and Distribution for Line Cards