Features and Benefits

  • Output Frequency Range 700 MHz - 2.7 GHz
  • I/Q Base-band Frequency range dc – 160 MHz
  • Output Power 5.6 dBm @ 2140 MHz
  • Quadrature Phase Accuracy 0.3 degrees
  • Amplitude Balance 0.1 dB
  • Low Noise Floor -156 dBm/Hz
  • Output Switch Disable Function
  • Single 5 V Supply
  • Pin Compatible with AD8346 / AD8345

Product Details

The AD8349 is high performance quadrature modulator design for use as a single stage up-converter within wireless infrastructure equipment.

The AD8349 provides a high output power and very low noise floor supporting a significant improvement in the output signal range. Additionally the excellent phase and amplitude balance accuracy support a higher sideband suppression specification enabling higher order / capacity QAM modulated radios.

The AD8349 has been tested for use over the common Cellular bands (900 MHz, 1.9 GHz, 2.1 GHz) meeting the needs as specified by the CDMA/GSM Edge/W-CDMA standards.

The AD8349 is supplied in 16-lead Thin Shrunk Small Outline (TSSOP) package, and fully specified over -40ºC to 85ºC temperature range.


  • Cellular/PCS communication systems infrastructure
  • Wireless LAN/wireless local loop
  • LMDS/broadband wireless access systems


Samples (part number AD8349ARE) and an evaluation board (part number AD8349-EVAL) are available. Other Modulator / Demodulator Products

  • AD8345 - 250 - 1000 MHz RF / IF Quadrature Modulator
  • AD8346 - 2.5 GHz Direct Conversion Quadrature Modulator
  • AD8347 - 800 MHz to 2.7 GHz RF / IF Quadrature Demodulator
  • AD8348 - 50 - 1000 MHz RF / IF Quadrature Demodulator
  • Product Categories

    Product Lifecycle icon-recommended Production

    At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

    Evaluation Kits (1)

    Tools & Simulations

    Design Tools


    ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.


    ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

    Product Recommendations

    AD8349 Companion Parts

    Recommended Differential Dual Baseband TxDAC's

    Recommended PLL's

    • For higher performance, higher frequency and faster locktimes: ADF4106, ADF4156.
    • For high performance with integrated VCO: ADF4350.

    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

    Sample & Buy

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    Evaluation Boards

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    Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

    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.