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ADL5571:  2.5 GHz to 2.7 GHz WiMAX Power Amplifier

The ADL5571 is a high linearity 2.5 GHz to 2.7 GHz power amplifier designed for WiMAX mobile terminals and CPEs using TDD operation at a duty cycle of 50% or lower. With a gain of 29 dB and an output compression point of 31 dBm, it can operate at an output power level up to 27 dBm while maintaining an EVM of ≤3% with a supply voltage of 5 V. PAE is 21% at POUT = 25 dBm with a 3.3 V ...More

ADL5571:  2.5 GHz to 2.7 GHz WiMAX Power Amplifier

Product Description

The ADL5571 is a high linearity 2.5 GHz to 2.7 GHz power amplifier designed for WiMAX mobile terminals and CPEs using TDD operation at a duty cycle of 50% or lower. With a gain of 29 dB and an output compression point of 31 dBm, it can operate at an output power level up to 27 dBm while maintaining an EVM of ≤3% with a supply voltage of 5 V. PAE is 21% at POUT = 25 dBm with a 3.3 V supply voltage.

The ADL5571 RF input is matched to provide an input return loss of better than 10 dB. The open-collector output is externally matched with a microstrip line and an external shunt capacitor.

The ADL5571 operates over a supply voltage range from 3.2 V to 5 V with a current of 450 mA burst rms when delivering 25 dBm (3.3 V supply). A standby mode is available that reduces the quiescent current to 9 mA, which is useful when a TDD terminal is receiving data.

The ADL5571 is fabricated in a GaAs HBT process and is packaged in a 4 mm × 4 mm, 16-lead, Pb-free, RoHS-compliant LFCSP that uses an exposed paddle for excellent thermal impedance. It operates from −40°C to +85°C.

Applications

  • WiMAX mobile terminals and CPEs

    • Data Sheet, Rev. 0, 1/08

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    • Gain: 29 dB
    • Operation from 2.5 GHz to 2.7 GHz
    • EVM < 3% with 16 QAM OFDMA
      @ POUT = 25 dBm (3.3 V, 2.6 GHz)
      @ POUT = 27 dBm (5 V, 2.6 GHz)
    • Input matched to 50 Ω
    • Power supply: 3.2 V to 5 V
    • Quiescent current: 135 mA
      Power-added efficiency (PAE)
      21% @ POUT = 25 dBm (3.3 V, 2.6 GHz)
    • Multiple operating modes to reduce battery drain
      Standby mode: 9 mA
      Sleep mode: <1 μA
    • Frequency Range (MHz): 2500 to 2700
    • Gain (dB): 29dB
    • Supply Current : 135mA
    • Package: 16-Lead LFCSP
    • 1 dB Comp Point (dBm): 31

    Functional Block Diagram for ADL5571

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    Part# Frequency Range (MHz) Gain (dB) Output IP3 (dBm) 1 dB Comp Point (dBm) Noise Figure (dB) Supply Current Specs @ (MHz) Function Package Price* (1000-4999)
    AD8353 1 to 2700 19.8 23.6 9.1 5.3 41mA 900 Gain Block 8-Lead LFCSP $0.49
    AD8354 1 to 2700 19.5 19 4.6 4.2 23mA 900 Gain Block 8-Lead LFCSP $0.49
    ADL5320 400 to 2700 13.7 42 25.7 4.4 104mA 2140 Driver SOT-89 $2.58
    ADL5321 2300 to 4000 14 41 25.7 4 90mA 2600 Driver SOT-89 $2.58
    ADL5322 700 to 1000 19.9 45.3 27.9 5 320mA 900 Driver 8-Lead LFCSP $3.52
    ADL5323 1700 to 2400 19.5 43.5 28 5 320mA 2140 Driver 8-Lead LFCSP $3.52
    ADL5521 400 to 4000 20.8 37 21.8 0.9 60mA 900 LNA 8-Lead LFCSP $2.18
    ADL5523 400 to 4000 21.5 34 21 0.8 60mA 900 LNA 8-Lead LFCSP $2.18
    ADL5530 dc to 1000 16.8 37 21.8 3 110mA 190 IFA 8-Lead LFCSP $1.58
    ADL5531 20 to 500 20.9 41 20.4 2.5 100mA 70 IFA 8-Lead LFCSP $1.87
    ADL5534 20 to 500 21 40.4 20.4 2.5 98mA 70 Dual IFA 16-Lead LFCSP $3.00
    ADL5541 50 to 6000 14.7 39.2 16.3 3.8 90mA 2000 Gain Block 8-Lead LFCSP $1.67
    ADL5542 50 to 6000 18.7 39 18 3.2 93mA 2000 Gain Block 8-Lead LFCSP $1.67
    ADL5570 2300 to 2400 29 - 31 - 130mA 2350 Pwr Amp w/ Power Control 16-Lead LFCSP $5.06
    ADL5571 2500 to 2700 29 - 31 - 135mA 2600 WiMAX Power Amplifier 16-Lead LFCSP $5.06
    ADL5601 50 to 4000 15 43 19 3.7 85mA 900 Gain Block 3-Lead SOT-89 $1.75
    ADL5602 50 to 4000 19.5 42 19.3 3.3 89mA 2000 Gain Block SOT-89 $1.75
    ADL5604 400 to 2700 14.2 42.6 29 4.2 325mA 2140 Driver 16-Lead LFCSP -
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    * The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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    *The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.