AD9518-1ABCPZ-RL7

Overview

The AD9518-1ABCPZ-RL7 is a 6-output clock generator featuring an integrated voltage-controlled oscillator (VCO) with a tuning range of 2.30 GHz to 2.65 GHz. It supports external VCO/VCXO inputs up to 2.4 GHz and accepts LVPECL, LVDS, or CMOS reference signals up to 250 MHz. The device provides three pairs of LVPECL outputs operating at frequencies up to 1.6 GHz, each equipped with programmable dividers (1-to-32) and coarse phase delay adjustment. Key performance metrics include an additive output jitter of 225 fs rms and channel-to-channel skew of less than 10 ps for paired outputs. It operates on a single 3.3 V supply within the -40°C to +85°C temperature range.

Feature Summary

• Integrated VCO tunes from 2.30 GHz to 2.65 GHz; supports external VCO/VCXO up to 2.4 GHz
• Six LVPECL outputs in three pairs, supporting frequencies up to 1.6 GHz with 1-to-32 division ratios
• Additive output jitter of 225 fs rms and channel-to-channel skew under 10 ps
• Programmable delays, automatic/manual reference switchover, and holdover modes

Applications

• Low jitter, low phase noise clock distribution systems
• 10/40/100 Gb/sec networking line cards including SONET, Synchronous Ethernet, and OTU2/3/4
• Clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFE devices
• High-performance wireless transceivers and ATE instrumentation

Procurement Notes

Verify the RL7 suffix indicates reel packaging when sourcing. Confirm RoHS compliance and moisture sensitivity levels prior to assembly. Ensure ESD precautions are taken during handling due to the LFCSP package type. Cross-reference the specific revision C datasheet for any parameter updates.

Selection Notes

Select this component for applications requiring subpicosecond jitter performance and multiple LVPECL outputs. Use the internal VCO for compact designs or an external VCXO if frequency stability requirements exceed internal capabilities. Ensure the charge pump supply (VCP) is configured correctly if using an external VCO requiring extended voltage ranges.

Part Context

The AD9518-1 is part of the AD9518 family, which includes variants like the AD9516 and AD9517 that differ primarily in package size and output count. It serves as a high-performance clock synthesizer designed to maximize data converter performance through low phase noise and jitter characteristics.

Replacement Considerations

The AD9518-0 is a similar member of the family but may have different VCO tuning ranges or specifications. Verify pin compatibility and electrical parameters against the specific application requirements before substitution.