LX5537 p roduction d ata s heet microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 1 www. microsemi . com ingap hbt 2.3 ? 2.7 ghz power amplifier tm ? copyright ? 2008 rev. 1.0a, 2008-09-04 block diagram active bias network vref rf input rf output vc det active bias network vref rf input rf output vc det 3x3mm qfn package package order info lq plastic qfn 3 3 16 pin rohs compliant / pb-free LX5537lq note: available in tape & reel. append the letters ?tr? to the part number. (i.e. LX5537lq-tr) description the LX5537 is a power amplifier optimized for 802.16e(wimax/wibro) and 802.11b/g/n applications in the 2.3- 2.7 ghz frequency range. the pa is implemented as a three-stage monolithic microwave integrated circuit (mmic) with active bias, on-chip input matching and output pre-matching. the device is manufactured with an ingap/gaas heterojunction bipolar transistor (hbt) ic process (mocvd). it operates with a single positive voltage supply of 3-4.2v, and provides power gain of 31db and output powers of +23.5dbm at 3.6v and +25 dbm at 4.2v for 2.5% evm in the 2.5- 2.7ghz. LX5537 also features an on-chip power detector at the output port of the pa to help reduce bom cost and pcb space for implementation of power control in a typical wireless system. the 26db attenuation function can optionally be used to reach low gain mode. the LX5537 is available in a 16- pin 3mm x 3mm quad flat no lead package (qfn 3 3-16l). the compact footprint, low profile, and excellent thermal capability make the LX5537 an ideal solution for wimax/wibro as well as 802.11b/g/n applications. important: for the most current data, consult microsemi ?s website: http://www.microsemi.com key features ? advanced ingap hbt ? 2.3-2.7ghz operation ? single-polarity 3-4.2v supply ? power gain ~ 31 db or higher ? 23.5 dbm @2.5% evm /3.6v ? 25 dbm @2.5% evm /4.2v ? 24.5 dbm @4% evm /3.6v ? 26 dbm @4% evm /4.2v ? 22% efficiency @24.5dbm/3.6v ? optional 26db attenuation ? complete on-chip input match ? simple output match for optimal evm ? temperature-compensated on-chip output power detector with wide dynamic range ? small footprint: 3x3mm 2 ? low profile: 0.9mm applications ? 802.16e wimax ? 802.16e wibro ? 802.11b/g/n l l x x 5 5 5 5 3 3 7 7 msc 5537 702 a
microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 tm ? www. microsemi . com copyright information thank you for your interest in microsemi ? analog mixed signal products. the full data sheet for this device contains proprietary information. to obtain a copy, please contact your loca l microsemi sales representative. the name of your local representative ca n be obtained at the following link http://www.microsemi.com/contact/contactfind.asp or contact us directly by sending an email to: ipgdatasheets@microsemi.com be sure to specify the data sheet you are requesting and include your company name and contact inform ation and or vcard. we look forward to hearing from you.
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