Features and Benefits

  • High Input P0.1dB: +46 dBm Tx
  • Low Insertion Loss: 0.4 dB
  • High IIP3: +74 dBm
  • Single Positive Control:
    0/ +3V to 0/ +8V
  • Failsafe Operation;
    Tx 'On' when Unpowered
  • 2x2mm DFN SMT Package

Product Details

The HMC646LP2(E) is an SPDT switch in a leadless DFN surface mount plastic package for use in transmit / receive and LNA protection applications which require very low distortion and high power handling of up to 40 watts with less than 10% duty cycle. This robust switch can control signals from 100 - 2100 MHz* and is ideal for TD-SCDMA / 3G repeaters, PMR, automotive telematics, and satellite subscriber terminal applications. The design provides exceptional P0.1 dB of +46 dBm and +74 dBm IIP3 on the Transmit (Tx) port. The failsafe topology provides a low loss path from Tx to RFC, when no DC power is available.

Specifications and the data reflect HMC646LP2 measured using the respective application circuits for each designated frequency band found within the data sheet.


  • LNA Protection & T/R Switching
  • TD-SCDMA / 3G Infrastructure
  • Satellite Subscriber Terminals
  • Private Mobile Radio & Public Safety Handsets
  • Automotive Telematics


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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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.

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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.

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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.