AD9518-4BCPZ

Overview

The AD9518-4BCPZ is a 6-output clock generator featuring an integrated voltage-controlled oscillator (VCO) with a tuning range of 1.45 GHz to 1.80 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 up to 1.6 GHz, each pair sharing a 1-to-32 divider with coarse phase delay capabilities. Key electrical specifications include a maximum output frequency of 1.8 GHz, a supply voltage of 3.3 V, and operation within the industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated on-chip VCO tunes from 1.45 GHz to 1.80 GHz; optional external VCO support up to 2.4 GHz
• Six LVPECL outputs organized in three pairs, each with independent 1-to-32 dividers and programmable delays
• Low additive output jitter of 225 fs rms and channel-to-channel skew of less than 10 ps for paired outputs
• Supports automatic revertive and manual reference switchover with reference monitoring capability

Applications

• Clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFE transceivers
• 10/40/100 Gb/sec networking line cards including SONET, Synchronous Ethernet, and OTU2/3/4
• Forward error correction (G.710) systems
• High-performance wireless transceivers
• Automated test equipment (ATE) and high-performance instrumentation

Procurement Notes

Verify the specific suffix BCPZ corresponds to the 48-lead LFCSP package configuration. Confirm that the ordering part number matches the Rev. E datasheet specifications for the AD9518-4 family member. Ensure compatibility with the required 3.3 V supply voltage and industrial temperature range (-40°C to +85°C) for the intended application environment.

Selection Notes

Select this component when subpicosecond jitter performance and low phase noise are critical for maximizing data converter performance. Choose the AD9518-4 over other family members if six LVPECL outputs are required. Consider the AD9520 or AD9522 if additional outputs, crystal reference inputs, zero-delay modes, or EEPROM-based automatic configuration are needed instead.

Part Context

The AD9518-4 is a specific member of the Analog Devices AD9518 family of multi-output clock generators. While the general AD9518 architecture applies to the series, the AD9518-4 variant is distinguished by its specific combination of six LVPECL outputs and the integrated 1.6 GHz VCO. Other variants in the family, such as the AD9516 and AD9517, offer different output configurations.

Replacement Considerations

Public confirmed substitute part numbers: AD9518-2A, AD9518-4ABCPZ.