skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com 203082b ? skyworks proprietary informati on. ? products and product information are subject to change without notice. ? january 14 , 2014 1 product summary sky 77771 power amplifier module for lte band 11/ 21 ( 1427.9 mh z C 1462.9 mhz) applications ? lte band s 11/ 21 features ? average power tracking (apt) support ? low voltage positive bias supply 3.0 v to 4.5 v ? good lineari ty ? high efficiency bands 11/21 ? large dynamic range ? small, low profile package - 2. 0 x 2. 5 mm x 0.9 mm - 10- pad configuration ? ingap gaas hbt ? supports low collector voltage operation ? no v ref required ? mipi rffe control interface description the sky 77771 power amplifier module (pam) is a fully matched 10 - pad surface mount module developed for long ter m evolution ( lte ) applications. this small and efficient module packs full 1427.9 C 1462.9 mhz bandwidth coverage into a single compact package. because of hig h efficiencies attained throughout the entire power range, the sky 77771 delivers unsurpassed talk - time advantages. the sky 77771 meets the stringent spectral linearity requirements of long term evolution (lte) data transmission with high power - added efficiency. the gallium arsenide (gaas) microwave monolithic integrated circuit (mmic) contains all amplifier active circuitry, including input and interstage matching circuits. the silicon cmos support die, providing precision biasing for the mmic affords , a true mipi rffe control interface. output match into a 50 - ohm load is realized off - chip within the module package to optimize efficiency and power performance. the sky 77771 is manufactured with skyworks' ingap gaas heterojunction bipolar transist or (hbt) process which provides for all positive voltage dc supply operation and maintains high efficiency and good linearity. while primary bias to the sky 77771 can be supplied directly from any suitable battery with an output of 3.0 v to 4.5 v, optimal p erformance is obtained with vcc 1 and vcc2 sourced from a dc - dc power supply adjusted w ithin 0.5 v to 3.4 v based on target output power levels. no external supply side switch is needed as typical "off" leakage is a few microamperes with full primary voltag e supplied from the battery.
ordering information product name order number evaluation board part number sky 77771 power amplifier module sky 77771 en40 - d555 - 002 copyright ? 2012, 2013, 2014, skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyworks solutions, inc. (skywor ks) products or services. these materials, including the information contained herein, are provided by skyworks as a service to its customers and may be used for informational purposes only by the customer. skyworks assumes no r esponsibility for errors or omissions in these materials or the information contained herein. skyworks may change its documentation, products, services, specifications or product descriptio ns at any time, without notice. skyworks makes no commitment to update the materials or inform ation and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any fu ture changes. no license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by th is document. skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of skyworks products, information or ma terials, except as may be provided in skyworks terms and conditions of sale. the materials, products and information are provided as is without warranty of any kind, whether express, implied, statutor y, or otherwise, including fitness for a particular purpose or use, merchantability, performance, quality or no n - infringement of any intellectual property right; all such warranties are hereby expressly disclaimed. skyworks does not warrant the accuracy or completeness of the information, text, graphics or other items containe d within these materials. skyworks shal l not be liable for any damages, including but not limited to any special, indirect, incidental, statutory, or consequential damages, including without limitation, lost revenues or lost profits that may result from the use of the materials or information, whether or not the recipient of materials has been advised of the possibility of such damage. skyworks products are not intended for use in medical, lifesaving or life - sustaining applications, or other equipment in which the failure of the skyworks product s could lead to personal injury, death, physical or environmental damage. skyworks customers using or selling skyworks products for use in such applications d o so at their own risk and agree to fully indemnify skyworks for any damages resulting from such i mproper use or sale. customers are responsible for their products and applications using skyworks products, which may deviate from published speci fications as a result of design defects, errors, or operation of products outside of published parameters or d esign specifications. customers should include design and operating safeguards to minimize these and other risks. skyworks as sumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of skywo rks products outside of stated published specifications or parameters. skyworks, the skyworks symbol, and breakthrough simplicity , ar e trademarks or registered trademarks of skyworks solutions, inc., in the united states and other countries. third - party brands and names are for identification purposes only, and are the property of their respective owners. additional information, incl uding relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by re ference.
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