AD9518-3ABCPZ-RL7

Overview

The AD9518-3ABCPZ-RL7 is a 6-output clock generator featuring an integrated voltage-controlled oscillator (VCO) with a tuning range of 1.75 GHz to 2.25 GHz. It supports external VCO/VCXO inputs up to 2.4 GHz and provides three pairs of LVPECL outputs operating up to 1.6 GHz. The device accepts differential or single-ended reference inputs up to 250 MHz and includes programmable delays, automatic synchronization, and digital/analog lock detect capabilities. Powered by a single 3.3 V supply, it operates within the industrial temperature range of −40°C to +85°C.

Feature Summary

• Integrated on-chip VCO tunes from 1.75 GHz to 2.25 GHz
• Three pairs of LVPECL outputs with 1-to-32 dividers and coarse phase delay
• Supports external VCO/VCXO up to 2.4 GHz
• Additive output jitter of 225 fs rms

Applications

• Low jitter, low phase noise clock distribution
• 10/40/100 Gb/sec networking line cards including SONET and Synchronous Ethernet
• Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFEs
• High performance wireless transceivers

Procurement Notes

Verify the RL7 suffix indicates reel packaging when sourcing. Confirm the specific -3 variant matches the required 1.75 GHz to 2.25 GHz internal VCO frequency range. Ensure compatibility with the 48-lead LFCSP package dimensions for PCB layout.

Selection Notes

Select this model if the application requires an integrated VCO covering 1.75 GHz to 2.25 GHz. For higher frequency requirements, consider variants with different VCO ranges. Verify that the 1.6 GHz maximum LVPECL output frequency meets system needs. Check power supply constraints as the charge pump supply (VCP) may require up to 5 V for external VCO operation.

Part Context

This component belongs to the AD9518 family of clock generators. The -3 suffix specifically denotes the version with an integrated VCO tuned between 1.75 GHz and 2.25 GHz. Other family members offer different VCO ranges or external VCO configurations.

Replacement Considerations

AD9518-0ABCPZ-RL7: Integrated VCO 2.55 GHz to 2.95 GHz. AD9518-1ABCPZ-RL7: Integrated VCO 2.25 GHz to 2.55 GHz. AD9518-2ABCPZ-RL7: Integrated VCO 1.95 GHz to 2.25 GHz. AD9518-4ABCPZ-RL7: Integrated VCO 1.55 GHz to 1.75 GHz.