Overview

Features and Benefits

  • Selectable 1×, 2× interpolation filter
    • Support input signal bandwidth 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 zero IF
  • Flexible 16-bit LVDS interface
    • Supports word and byte load
  • Multiple chip synchronization
    • Fixed latency and data generator latency compensation
  • FIFO eases system timing and includes error detection
  • High performance, low noise PLL clock multiplier
  • Digital inverse sinc filter
  • Low power: 700 mW at 1230 MSPS
  • 72-lead LFCSP

Product Details

The AD9139 is a 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a maximum update rate of 1600 MSPS, permitting multicarrier generation up to the Nyquist frequency. The AD9139 TxDAC+® includes features optimized for wide band communications applications, including 1× and 2× interpolation, a DLL based high speed interface, sample error detection, and parity detection. 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 up to 33 mA. The AD9139 is available in a 72-lead LFCSP.

PRODUCT HIGHLIGHTS

  1. 575 MHz achievable input signal bandwidth.
  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. Low power architecture improves power efficiency.

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.

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Reference Designs (1)

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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.