AD9522-0BCPZ

Overview

The AD9522-0BCPZ is a 12-channel clock generator featuring an integrated voltage-controlled oscillator (VCO) with a tuning range of 2.53 GHz to 2.95 GHz. It supports external VCOs up to 2.4 GHz and accepts reference inputs from CMOS, LVPECL, or LVDS sources up to 250 MHz. The device provides twelve 800 MHz LVDS outputs, which can be reconfigured as twenty-four 250 MHz CMOS outputs. Key specifications include additive output jitter as low as 242 fs rms and channel-to-channel skew under 60 ps within grouped outputs. It operates on a single 3.3 V supply and includes nonvolatile EEPROM for configuration storage.

Feature Summary

• Integrated VCO tunes from 2.53 GHz to 2.95 GHz
• Twelve 800 MHz LVDS outputs configurable as twenty-four 250 MHz CMOS outputs
• Additive output jitter as low as 242 fs rms
• SPI- and I2C-compatible serial control port with nonvolatile EEPROM

Applications

• Low jitter, low phase noise clock distribution
• Clock generation for SONET, 10Ge, and 10G FC protocols
• 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 ordering guide to confirm package type and tape/reel status. Confirm RoHS compliance and moisture sensitivity levels prior to procurement. Ensure the design accommodates the required external components for the charge pump and VCO biasing.

Selection Notes

Select the AD9522-0 variant specifically when the application requires an internal VCO frequency range between 2.53 GHz and 2.95 GHz. Other variants in the family offer different internal VCO ranges; ensure the selected part matches the target frequency planning requirements. Verify that the 800 MHz LVDS output limit meets the system's maximum frequency needs.

Part Context

The AD9522-0 is part of the AD9522 family of multi-output clock generators. It serves as the LVDS/CMOS driver equivalent to the AD9520-0, which utilizes LVPECL drivers. This component is designed for subpicosecond jitter performance and flexible clock distribution in high-speed data conversion and telecommunications systems.

Replacement Considerations

The AD9520-0 is an equivalent part within the same family but features LVPECL/CMOS drivers instead of LVDS/CMOS drivers. Direct pin-for-pin replacement requires verifying that the downstream circuitry supports LVPECL signaling levels rather than LVDS.