AD9518-1BCPZ-REEL7

Overview

The AD9518-1BCPZ-REEL7 is a six-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 or 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 a programmable divider ranging from 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 industrial temperature range of -40°C to +85°C.

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, each with 1-to-32 division and coarse phase delay
• Additive output jitter of 225 fs rms; channel-to-channel skew <10 ps
• Supports automatic revertive/manual reference switchover and holdover modes

Applications

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

Procurement Notes

Verify the REEL7 suffix indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status via official documentation. Ensure ESD precautions are observed during handling due to moisture sensitivity classification. Cross-reference pinout and register maps with the latest Rev. C datasheet to ensure compatibility with existing designs.

Selection Notes

Select this component for applications requiring subpicosecond jitter performance and multiple synchronized LVPECL outputs. Use the internal VCO for compact designs or external VCXO for specific frequency stability requirements. Ensure the charge pump supply (VCP) is configured correctly if using an external VCO requiring extended voltage ranges up to 5.25 V.

Part Context

The AD9518-1 belongs to the AD9518 family of clock generators, which also includes variants like the AD9518-0 and AD9518-2. These devices share similar core functionalities but differ in package size, output count, and specific VCO tuning ranges. The AD9518-1 specifically offers a balance of six outputs and integrated VCO capabilities suitable for high-speed data converter clocking.

Replacement Considerations

Direct replacements within the same family include the AD9518-0ABCPZ and AD9518-2ABCPZ. Verify that the alternative variant's VCO frequency range and output configuration meet the specific design requirements before substitution.