Overview

Features and Benefits

  • Supports input data rate up to 575 MHz
  • Very small inherent latency variation: <2 DAC clock cycles
  • Proprietary low spurious and distortion design
    6-carrier GSM ACLR = 79 dBc at 200 MHz IF
    SFDR > 85 dBc (bandwidth = 300 MHz) at ZIF
  • Flexible 16-bit LVDS interface
    Supports word and byte load
    Data interface DLL
    Sample error detection and parity
  • Multiple chip synchronization
    Fixed latency and data generator latency compensation
  • Selectable 2×, 4×, 8× interpolation filter
    Low power architecture
    fS/4 power saving coarse mixer
  • Input signal power detection
    Emergency stop for downstream analog circuitry protection
  • FIFO error detection
  • See datasheet for additional features

Product Details

The AD9142A is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a sample rate of 1600 MSPS, permitting a multicarrier generation up to the Nyquist frequency. The AD9142A TxDAC+® includes features optimized for direct conversion transmit applications, including complex digital modulation, input signal power detection, and gain, phase, and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL537x F-MOD series and the ADRF670x series from Analog Devices, Inc. A 3-wire serial port interface provides for the programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 9 mA to 33 mA. The AD9142A is available in a 72-lead LFCSP.

PRODUCT HIGHLIGHTS

  1. Wide signal bandwidth (BW) enables emerging wideband and multiband wireless applications.
  2. Advanced low spurious and distortion design techniques provide high quality synthesis of wideband signals from baseband to high intermediate frequencies.
  3. Very small inherent latency variation simplifies both software and hardware design in the system. It allows easy multichip synchronization for most applications.
  4. New low power architecture improves power efficiency (mW/MHz/channel) by 30%.
  5. Input signal power and FIFO error detection simplify designs for downstream analog circuitry protection.
  6. Programmable transmit enable function allows easy design balance between power consumption and wakeup time.

APPLICATIONS

  • Wireless communications: 3G/4G and MC-GSM base stations,
    wideband repeaters, software defined radios
  • Wideband communications: point-to-point, LMDS/MMDS
  • Transmit diversity/MIMO
  • Instrumentation
  • Automated test equipment

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)

Tools & Simulations

IBIS Models

Reference Designs (1)

Product Recommendations

AD9142A Companion Parts

Recommended I/Q Modulators

  • For a family of quadrature modulators with fractional-N PLL's and integrated VCO's: ADRF6702.
  • For high performance RF/IF modulation with excellent phase accuracy and amplitude balance: ADL5375, ADL5372.

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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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
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.