AD9518-2BCPZ-REEL7

Overview

The AD9518-2BCPZ-REEL7 is a 6-output clock generator featuring an integrated voltage-controlled oscillator (VCO) with a tuning range of 2.05 GHz to 2.33 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 capabilities. 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 2.05 GHz to 2.33 GHz; supports external VCO/VCXO up to 2.4 GHz
• Six LVPECL outputs in three pairs, supporting frequencies up to 1.6 GHz
• Additive output jitter of 225 fs rms; channel-to-channel skew <10 ps
• Programmable delays and 1-to-32 division ratios per output pair

Applications

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

Procurement Notes

Verify the specific REEL7 suffix against the manufacturer's current ordering guide to confirm packaging quantity and reel specifications. Ensure compatibility with moisture sensitivity levels and reflow soldering profiles during assembly. Confirm that the LFCSP-48 package thermal requirements are met by the target PCB design.

Selection Notes

Select this component when subpicosecond jitter performance and low phase noise are critical for data converter applications. Choose the internal VCO configuration for compact designs or utilize the external VCO input if higher frequency flexibility is required. Ensure the system can accommodate the 3.3 V power supply and verify that the serial control interface matches the host controller.

Part Context

This part belongs to the AD9518 family of clock generators. It shares functional similarities with the AD9516 and AD9517 but offers a distinct combination of six LVPECL outputs. For applications requiring additional outputs, crystal reference inputs, zero-delay modes, or EEPROM configuration, the AD9520 and AD9522 are available alternatives.

Replacement Considerations

The AD9518-0 and AD9518-4 are members of the same family with different VCO ranges and output characteristics. Verify pinout compatibility and register settings when substituting these variants.