3400-3800 MHz Advanced Doherty Alignment Module

MMDS36254H
The MMDS36254H is an integrated module designed for use in base station transmitters in conjunction with high power Doherty amplifiers. The device is designed to enable accurate alignment of phase and amplitude on the carrier and peaking amplifiers to ensure performance consistency, in particular for asymmetric implementations. The MMDS36254H enables superior linearity-efficiency trade-off while improving output power. It contains a 90° coupler, digitally selectable phase shifters and step attenuators, and operates from a single voltage supply. The MMDS36254H is suitable for transmit protocols such as W-CDMA, UMTS and LTE using frequencies from 3400 to 3800 MHz, and is controlled using a serial peripheral interface (SPI).

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Block Diagram

RF Control Circuit ADAM Block Diagram

Advanced Doherty Alignment Module
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Features

  • Frequency: 3400-3800 MHz
  • Maximum RF Input Power: 25 dBm (CW)
  • Low Loss Power Splitter
  • 0.25 dB Step Programmable Attenuators with 7.75 dB Maximum Range
  • 7° per Bit Phase Shifters with 45.5° Maximum Range
  • Power up into a Selectable State
  • Single 5 Volt Supply
  • Supply Current: 10 mA
  • 50 Ohm Operation (no external matching required)
  • TTL/CMOS/SPI Interface (1.8 V, 3.3 V Logic)
  • Cost-effective 32-pin, 6 mm QFN Surface Mount Plastic Package
  • RoHS compliant

Documentation

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3 documents

Design Resources

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Software

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3 software files

  • Test, Debug and Analyzer Software

    External driver used to control amplitude and phase in ADAM devices. Includes MCR.

    ZIPRev 1May 25, 2021 00:00:00351595 KBADAM_GUI_VER1_WITHMCR_PKG
    Download
  • Test, Debug and Analyzer Software

    Freescale SPI adapter software used to control amplitude and phase in ADAM devices. Includes Advanced Doherty Alignment Module User's Guide.

    ZIPRev 1.1Jun 12, 2013 00:00:008.8 MBFREESCALE_ADAM_IF_X.X_SETUP
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  • Test, Debug and Analyzer Software

    External driver used to control amplitude and phase in ADAM devices.

    ZIPRev 1May 25, 2021 00:00:0010.3 MBADAM_GUI_VER1_WITHOUTMCR_PKG
    Download

Note: For better experience, software downloads are recommended on desktop.

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