AD9522-1BCPZ

Overview

The AD9522-1BCPZ is a 12-channel LVDS and 24-channel CMOS output clock generator featuring an integrated voltage-controlled oscillator (VCO) with a tuning range of 2.27 GHz to 2.65 GHz. It supports external VCO/VCXO inputs up to 2.4 GHz and accepts reference signals from CMOS, LVPECL, or LVDS sources up to 250 MHz. The device provides subpicosecond jitter performance with additive output jitter as low as 242 fs rms. It includes four groups of channel dividers with programmable divide ratios (1–32) and phase delay settings. Controlled via SPI or I²C interfaces, 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 2.27 GHz to 2.65 GHz; supports external VCO/VCXO up to 2.4 GHz
• 12 LVDS outputs (up to 800 MHz) and 24 CMOS outputs (up to 250 MHz)
• Additive output jitter as low as 242 fs rms; channel-to-channel skew < 60 ps
• Nonvolatile EEPROM stores configuration settings for power-up and reset

Applications

• Clock generation and translation for SONET, 10Ge, and 10G FC protocols
• Clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFEs
• Low jitter, low phase noise clock distribution systems
• Forward error correction (G.710) applications

Procurement Notes

Verify the specific suffix 'BCPZ' corresponds to the lead-free tape and reel packaging format when sourcing. Confirm that the ordering part number matches the Rev. B datasheet specifications. Ensure compatibility with standard industrial temperature ranges (-40°C to +85°C) for the target application environment.

Selection Notes

Select this component for designs requiring multiple differential LVDS outputs with precise phase alignment. The internal VCO eliminates the need for external oscillators in many configurations. Consider the AD9520-1 if LVPECL drivers are required instead of LVDS. Ensure the reference input signal meets the sensitivity requirements for AC-coupled operation.

Part Context

The AD9522-1 is a member of the AD9522 family of clock generators. It is functionally equivalent to the AD9520-1, which utilizes LVPECL/CMOS drivers rather than LVDS/CMOS drivers. The device integrates a PLL, VCO, and clock distribution network in a 64-lead LFCSP package.

Replacement Considerations

The AD9520-1 serves as a functional alternative within the same family, offering identical clock generation capabilities but with LVPECL output drivers instead of LVDS.