Features and Benefits

  • Two 1.6 GHz, differential clock inputs
  • 5 programmable dividers, 1 to 32, all integers
  • Phase select for output-to-output coarse delay adjust
  • Three independent 1.2 GHz LVPECL outputs
    Additive output jitter , 225 fs RMS
  • Two independent 800 MHz/250 MHz LVDS/CMOS outputs
    Additive output jitter, 275 fs RMS
    Fine delay adjust on one output, 5-bit delay words
  • 4-wire or 3-wire serial control port
  • Space-saving 48-lead LFCSP
AD9512-EP supports defense and aerospace applications (AQEC standard)
  • Download AD9512-EP data sheet (pdf)
  • Military temperature range (−55°C to +85°C)
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Enhanced product change notification
  • Qualification data available on request
  • V62/12656 DSCC Drawing Number

Product Details

The AD9512 provides a multi-output clock distribution function for input signals up to 1.6 GHz. The design emphasizes low jitter and low phase noise in order to maximize data converter clocking performance.

Three independent LVPECL and two LVDS clock outputs operate to 1.2 GHz and 800 MHz respectively. Optional CMOS clock outputs available to 250 MHz. Each output has a programmable divider, which may be bypassed or set to divide by any integer up to 32.

Each divider allows the user to change the phase of one clock output relative to another clock output. This phase select functions as a coarse timing adjustment. One output also features a programmable delay element with a user-selected, fullscale range to 10 ns. This fine tuning delay block is programmed with a 5-bit word, which gives the user 32 possible delays from which to choose.

The AD9512 is ideally suited for data converter clocking applications where maximum converter performance is achieved with sub-picosecond jitter encode signals.

The AD9512 is available in a 48-lead LFCSP and is specified from -40°C to +85°C. The part may be run from a single 3.3 V supply.


  • Low jitter, low phase noise clock distribution
  • Clocking high speed ADCs, DACs, DDS, DDC, DUC, MxFE™ Converters
  • Wireless infrastructure transceivers
  • High performance instrumentation
  • Broadband infrastructure

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Documentation & Resources

  • View All (24)
  • Data Sheets (3)
  • Application Notes (10)
  • Demo Board Schematic (1)
  • Frequently Asked Questions (1)
  • Circuit Note (2)
  • Technical Articles (6)
  • Press Releases (1)
  • Application Notes
    Frequently Asked Questions

    Tools & Simulations

    IBIS Models

    AD9512 IBIS Models

    Design Tools

    ADIsimCLK Design and Evaluation Software

    ADIsimCLK is the design tool developed specifically for Analog Devices' range of ultra-low jitter clock distribution and clock generation products. Whether your application is in wireless infrastructure, instrumentation, networking, broadband, ATE or other areas demanding predictable clock performance, ADIsimCLK will enable you to rapidly develop, evaluate and optimize your design.

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

    PCN-PDN Information

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    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.