AD9522-3BCPZ-REEL7

Overview

The AD9522-3BCPZ-REEL7 is a low phase noise PLL clock generator featuring an integrated voltage-controlled oscillator (VCO) with a tuning range of 1.72 GHz to 2.25 GHz. It supports external 3.3 V/5 V VCOs or VCXOs up to 2.4 GHz and accepts CMOS, LVPECL, or LVDS references up to 250 MHz. The device provides twelve 800 MHz LVDS outputs divided into four groups, each with a 1-to-32 divider for phase delay adjustment. Each LVDS output can be reconfigured as two 250 MHz CMOS outputs. Additive output jitter is as low as 242 fs rms, with channel-to-channel skew under 60 ps within grouped outputs.

Feature Summary

• Integrated VCO tunes from 1.72 GHz to 2.25 GHz; supports external VCO/VCXO up to 2.4 GHz
• Twelve 800 MHz LVDS outputs in four groups, configurable as twenty-four 250 MHz CMOS outputs
• Additive output jitter as low as 242 fs rms; channel-to-channel skew <60 ps
• SPI- and I²C-compatible serial control port with nonvolatile EEPROM storage

Applications

• Low jitter, low phase noise clock distribution
• Clock generation and translation for SONET, 10Ge, 10G FC, and other 10 Gbps protocols
• Forward error correction (G.710)
• Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs
• High performance wireless transceivers and broadband infrastructures

Procurement Notes

Verify the REEL7 suffix indicates tape-and-reel packaging when sourcing this component. Confirm the specific AD9522-3 variant matches the required internal VCO frequency range of 1.72 GHz to 2.25 GHz. Ensure the 64-lead LFCSP package is compatible with the target PCB footprint and thermal requirements.

Selection Notes

Select the AD9522-3 over other family members based on its specific internal VCO range of 1.72 GHz to 2.25 GHz. Choose this part if LVDS output drivers are required; use the AD9520-3 equivalent for LVPECL drivers. Consider the external VCO support up to 2.4 GHz if higher frequencies are needed beyond the internal range.

Part Context

The AD9522-3 is part of the AD9522 family of multi-output clock generators. It shares functional similarities with the AD9522-0, AD9522-1, and AD9522-5, differing primarily in the internal VCO tuning range. The AD9520-3 serves as the equivalent part with LVPECL/CMOS drivers instead of LVDS/CMOS drivers.

Replacement Considerations

The AD9520-3 is an equivalent part featuring LVPECL/CMOS drivers instead of LVDS/CMOS drivers.