
Analog Devices
GENERAL DESCRIPTION
The AD9516-01 provides a multi-output clock distribution function with subpicosecond jitter performance, along with an on-chip PLL and VCO. The on-chip VCO tunes from 2.55 GHz to 2.95 GHz. Optionally, an external VCO/VCXO of up to 2.4 GHz can be used.
The AD9516-0 emphasizes low jitter and phase noise to maximize data converter performance, and it can benefit other applications with demanding phase noise and jitter requirements.
The AD9516-0 features six LVPECL outputs (in three pairs) and four LVDS outputs (in two pairs). Each LVDS output can be reconfigured as two CMOS outputs. The LVPECL outputs operate to 1.6 GHz, the LVDS outputs operate to 800 MHz, and the CMOS outputs operate to 250 MHz.
FEATURES
Low phase noise, phase-locked loop (PLL)
On-chip VCO tunes from 2.55 GHz to 2.95 GHz
External VCO/VCXO to 2.4 GHz optional
1 differential or 2 single-ended reference inputs
Reference monitoring capability
Automatic revertive and manual reference
switchover/holdover modes
Accepts LVPECL, LVDS, or CMOS references to 250 MHz
Programmable delays in path to PFD
Digital or analog lock detect, selectable
6 pairs of 1.6 GHz LVPECL outputs
Each output pair shares a 1-to-32 divider with coarse
phase delay
Additive output jitter: 225 fs rms
Channel-to-channel skew paired outputs of <10 ps
4 pairs of 800 MHz LVDS clock outputs
Each output pair shares two cascaded 1-to-32 dividers
with coarse phase delay
Additive output jitter: 275 fs rms
Fine delay adjust (Δt) on each LVDS output
Each LVDS output can be reconfigured as two 250 MHz
CMOS outputs
Automatic synchronization of all outputs on power-up
Manual output synchronization available
64-lead LFCSP
APPLICATIONS
Low jitter, low phase noise clock distribution
10/40/100 Gb/sec networking line cards, including SONET,
Synchronous Ethernet, OTU2/3/4
Forward error correction (G.710)
Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs
High performance wireless transceivers
ATE and high performance instrumentation