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AD9142:  Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter

Product Details


The AD9142 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 AD9142 TxDAC+® includes features optimized for direct conversion transmit applications, including complex digital mod-ulation, 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 pro-gramming/readback of many internal parameters. Full-scale output current can be programmed over a range of 9 mA to 33 mA. The AD9142 is available in a 72-lead LFCSP.

PRODUCT HIGHLIGHTS
  1. Advanced low spurious and distortion design techniques provide high quality synthesis of wideband signals from baseband to high intermediate frequencies.
  2. Very small inherent latency variation simplifies both software and hardware design in the system. It allows easy multichip synchronization for most applications.
  3. New low power architecture improves power efficiency (mW/MHz/channel) by 30%.
  4. Input signal power and FIFO error detection simplify designs for downstream analog circuitry protection.
  5. 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

FEATURES and BENEFITS

  • 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
  • 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 data sheet for additional features

Functional Block Diagram for AD9142

For evaluation of all Analog Devices High Speed DAC components you will need to purchase or loan a Data Pattern Generator. To find out more information please click here.

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD9142 IBIS Model  (ibs) IBIS Models IBS

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

Price Table Help

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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