AD9779
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AD9779

Dual 16-Bit, 1 GSPS, Digital-to-Analog Converter

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Part Details
Part Models 2
1ku List Price Starting From $38.76
Features
  • Low power: 1.0 W @ 1 GSPS, 600 mW @ 500 MSPS, full operating conditions
  • SFDR = 78 dBc to fOUT = 100 MHz
  • Single carrier WCDMA ACLR = 79 dBc @ 80 MHz IF
  • Analog output: adjustable 8.7 mA to 31.7 mA, RL = 25 Ω to 50 Ω
  • Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth
  • Auxiliary DACs allow control of external VGA and offset control
  • Multiple chip synchronization interface
  • High performance, low noise PLL clock multiplier
  • Digital inverse sinc filter
  • 100-lead, exposed paddle TQFP package
Additional Details
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The AD9776/AD9778/AD9779 are dual, 12-/14-/16-bit, high dynamic range, digital-to-analog converters (DACs) that provide a sample rate of 1 GSPS, permitting multicarrier generation up to the Nyquist frequency. They include features optimized for direct conversion transmit applications, including complex digital modulation, and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quad-rature modulators such as the AD8349. A serial peripheral interface (SPI®) provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The devices are manufactured on an advanced 0.18 μm CMOS process and operate on 1.8 V and 3.3 V supplies for a total power consumption of 1.0 W. They are enclosed in 100-lead TQFP packages.

Product Highlights

  1. Ultralow noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies.
  2. A proprietary DAC output switching technique enhances dynamic performance.
  3. The current outputs are easily configured for various single-ended or differential circuit topologies.
  4. CMOS data input interface with adjustable set up and hold.
  5. Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth.

Applications

  • Wireless infrastructure
    WCDMA, CDMA2000, TD-SCDMA, WiMax, GSM
  • Digital high or low IF synthesis
  • Internal digital upconversion capability
  • Transmit diversity
  • Wideband communications: LMDS/MMDS, point-to-point
  • Data Sheet, Rev. A, 3/07

    Part Models 2
    1ku List Price Starting From $38.76

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    Documentation

    Documentation

    Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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    Product Lifecycle

    PCN

    Mar 7, 2012

    - 11_0074

    Addition of ASE, Shanghai as an Alternative Assembly Source for Select LQFP and TQFP-EP Packages

    Jun 16, 2009

    - 09_0027

    Conversion to Laser Mark for the LQFP Packages (Single Grades)

    AD9779BSVZ

    PRODUCTION

    AD9779BSVZRL

    PRODUCTION

    Filter by Model

    reset

    Reset Filters

    Part Models

    Product Lifecycle

    PCN

    Mar 7, 2012

    - 11_0074

    arrow down

    Addition of ASE, Shanghai as an Alternative Assembly Source for Select LQFP and TQFP-EP Packages

    Jun 16, 2009

    - 09_0027

    arrow down

    Conversion to Laser Mark for the LQFP Packages (Single Grades)

    AD9779BSVZ

    PRODUCTION

    AD9779BSVZRL

    PRODUCTION

    Software & Part Ecosystem

    Software & Part Ecosystem

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    Evaluation Kit

    Evaluation Kits 1

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    AD-DAC-FMC

    AD-DAC-FMC-ADP

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    AD-DAC-FMC

    AD-DAC-FMC-ADP

    Product Detail

    The AD-DAC-FMC-ADP adapter board allows any of Analog Devices' DPG2-compatiable High-Speed DAC Evaluation Boards to be used on a Xilinx® evaluation board with a FMC connector. The adapter board uses the Low Pin Count (LPC) version of the FMC connector, so it can be used on either LPC or HPC hosts (such as the ML605 or SP605).

    For a list of compatible evaluation boards, please see the "DPG2" information on our Data Pattern Generator (DPG) High-Speed DAC Evaluation Platform page.
    Tools & Simulations

    Tools & Simulations 1

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