AD9516-4BCPZ

Overview

The AD9516-4BCPZ is a 14-output clock generator featuring an integrated voltage-controlled oscillator (VCO) with a tuning range of 1.45 GHz to 1.80 GHz. It supports up to 2.4 GHz external VCO/VCXO inputs and accepts LVPECL, LVDS, or CMOS references up to 250 MHz. The device provides six differential LVPECL outputs operating to 1.6 GHz, four differential LVDS outputs to 800 MHz, and eight single-ended CMOS outputs to 250 MHz. Each output pair includes programmable dividers and coarse phase delay capabilities. Additive jitter is specified at 225 fs rms for LVPECL and 275 fs rms for LVDS. It operates on a single 3.3 V supply within the -40°C to +85°C industrial temperature range.

Feature Summary

• Integrated VCO tunes from 1.45 GHz to 1.80 GHz; optional external VCO/VCXO support up to 2.4 GHz
• Six pairs of LVPECL outputs (to 1.6 GHz), four pairs of LVDS outputs (to 800 MHz), and eight CMOS outputs (to 250 MHz)
• Programmable dividers (1-to-32 for LVPECL; up to 1024 for LVDS/CMOS) with coarse phase delay per output pair
• Additive output jitter: 225 fs rms (LVPECL) and 275 fs rms (LVDS); channel-to-channel skew <10 ps for paired outputs

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 MxFEs
• High-performance wireless transceivers
• ATE and high-performance instrumentation

Procurement Notes

Verify the specific suffix BCPZ against the manufacturer's current ordering guide to confirm package type and RoHS compliance status. Confirm that the internal VCO frequency range aligns with system requirements, as other variants in the AD9516 family offer different VCO ranges. Ensure the serial control port configuration matches the host microcontroller interface before finalizing procurement.

Selection Notes

Select the AD9516-4BCPZ when an integrated VCO tuned between 1.45 GHz and 1.80 GHz is required. If a higher frequency internal VCO (e.g., 2.0 GHz or 2.8 GHz) is needed, consider other members of the AD9516 family such as the AD9516-3 or AD9516-0. Verify that the 3.3 V single-supply operation and LFCSP-64 package fit the board layout constraints. Check if fine delay adjustment on LVDS outputs is necessary, as this variant supports it via register settings.

Part Context

The AD9516-4 is part of the Analog Devices AD9516 family of multi-output clock generators. Unlike the AD9516-0 which features a 2.55–2.95 GHz VCO, the AD9516-4 integrates a lower frequency 1.45–1.80 GHz VCO. All family members share similar output configurations and low-jitter performance characteristics but differ primarily in their internal VCO tuning ranges and specific application optimizations.

Replacement Considerations

Direct replacements within the same package and pinout include other AD9516 variants like the AD9516-0BCPZ or AD9516-3BCPZ, provided the VCO frequency range meets the design needs. Cross-family replacements require careful evaluation of output types, divider ratios, and power supply requirements.