ADRF5702

RECOMMENDED FOR NEW DESIGNS

Silicon Digital Attenuator, 0.125dB LSB, 8-Bit, 50MHz to 20GHz

Data Sheet (Rev. A) Product Selection Table
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Overview

  • Frequency range: 50MHz to 20GHz
  • Attenuation range: 31.875dB with 0.125dB step size
  • Low insertion loss
    • 1.4dB typical up to 6GHz (5V supply)
    • 1.8dB typical up to 12GHz (5V supply)
    • 2.6dB typical up to 20GHz (5V supply)
  • Attenuation accuracy: −(0.1 + 2.0% of attenuation state) typical up to 20GHz
  • Step error: −0.30dB typical up to 20GHz (5V supply)
  • High linearity
    • Input P0.1dB
      • Attenuation state < 8dB: 32dBm typical (5V supply)
      • Attenuation state ≥ 8dB: 29dBm typical (5V supply)
    • Input IP3
      • Attenuation state < 16dB): 55dBm typical (5V supply)
      • Attenuation state ≥ 16dB): 50dBm typical (5V supply)
  • High RF power handling
    • 27dBm average (ATTIN)
    • 32dBm peak (5V supply, attenuation state < 8dB)
    • 29dBm peak (5V supply, attenuation state ≥ 8dB)
    • 27dBm hot switching
  • RF amplitude settling time (50% triggered control to 0.05dB of final RF output): 140ns
  • Consistent return loss at all attenuation states
  • Single-supply operation: 5V or 3.3V
  • No low frequency spurs, and no internal voltage generation
  • Serial and parallel mode control, CMOS/LVTTL compatible
  • 24-terminal, 4.0mm × 4.0mm, land grid array (LGA) package

The ADRF5702 is a 8-bit digital attenuator with a 31.875dB attenuation range and 0.125dB step size manufactured in a silicon on insulator (SOI) process.

This device operates from 50MHz to 20GHz with an insertion loss lower than 2.6dB and excellent attenuation accuracy. The ADRF5702 has RF input power handling capabilities of 27dBm average and 29dBm peak for all states from the ATTIN pin.

The ADRF5702 requires a single-supply voltage of 5V or 3.3V. The device does not support supply intermediate supply voltage levels except values given in the Electrical Specifications section.

The device features serial or parallel mode control and complementary metal-oxide semiconductor (CMOS)-/low voltage transistor to transistor logic (LVTTL)-compatible controls.

The ADRF5702 RF ports are designed to match a characteristic impedance of 50Ω.

The ADRF5702 comes in a 24-terminal, 4.0mm × 4.0mm, land grid array (LGA) package and can operate from −40°C to +105°C.

APPLICATIONS

  • Industrial scanners
  • Test and instrumentation
  • Cellular infrastructure: 5G millimeter wave
  • Military radios, radars, and electronic counter measures (ECMs)
  • Microwave radios and very small aperture terminals (VSATs)

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    ADRF5702
    Silicon Digital Attenuator, 0.125dB LSB, 8-Bit, 50MHz to 20GHz
    ADRF5702 Functional Block Diagram ADRF5702 Pin Configuration ADRF5702 Chip Illustration
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    Documentation

    Data Sheet 1

    User Guide 1

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    Tools & Simulations

    S-Parameter 1

    Evaluation Kits

    eval board
    schematic 1
    schematic 2
    schematic 3
    EVAL-ADRF5702

    Evaluating the ADRF5702 Silicon Digital Attenuator, 0.125dB LSB, 8-Bit, 50MHz to 20GHz

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    Features and Benefits

    • Full featured evaluation board for the ADRF5702 
    • Easy connection to test equipment
    • Additional through line for calibration

    Product Details

    The ADRF5702 is a 8-bit digital attenuator with 31.875dB attenuation range manufactured in the silicon on insulator (SOI) process.

    This user guide describes the ADRF5702-EVALZ evaluation board, which is designed to simply evaluate the features and performance of the ADRF5702. A photograph of the evaluation board is shown in Figure 1 in User Guide.
    EVAL-ADRF5702
    Evaluating the ADRF5702 Silicon Digital Attenuator, 0.125dB LSB, 8-Bit, 50MHz to 20GHz
    EVAL-ADRF5702 Board Photo Angle View EVAL-ADRF5702 Board Photo Top View EVAL-ADRF5702 Board Photo Bottom View

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