skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 201011a ? skyworks proprietary and confidential information. ? products and product informat ion are subject to change with out notice. ? february 2, 2009 1 product summary SKY77187 power amplifier module for wcdma / hsdpa band ii (1850C1910 mhz) applications ? wcdma handsets ? hsdpa features ? low voltage positive bias supply - 3.2 v to 4.2 v ? good linearity ? high efficiency - 40% @ 29.0 dbm ? large dynamic range ? 10-pad package - 3 x 3 x 0.85 mm ? power down control ? ingap ? supports low collector voltage operation ? digital enable ? no v ref required ? cmos compatible control signals ? integrated directional coupler the SKY77187 power amplifier module (pam) is a fully matched 10-pad surface mount module developed for wideband code division multiple access (wcdma) applications. this small and efficient module packs full 1850C1910 mhz bandwidth coverage into a single compact package. because of high efficiencies attained throughout the entire power range, the SKY77187 delivers unsurpassed talk-time advantages. the SKY77187 meets the stringent spectral linearity requirements of high speed downlink packet access (hsdpa) data transmission with high power added efficiency. a directional coupler is integrated into the module thus eliminating the need for any external coupler. the single gallium arsenide (gaas) microwave monolit hic integrated circuit (mmic) contains all active circuitry in the module. the mmic contains on-board bias circuitry, as well as input and interstage matching circuits. output match into a 50-ohm load is realized off-chip within the module package to optimize efficiency and power performance. the SKY77187 pam is manufactured with skyworks ingap gaas heterojunction bipolar transistor (hbt) bifet process that provides for all positive voltage dc supply operation while maintaining high efficiency and good linearity. primary bias to the SKY77187 is supplied directly from any three-cell ni-cd, a single-cell li-ion, or other suitable battery with an output in the 3.2 to 4.2 volt range. no vref voltage is required. power down is accomplished by setting the voltage on venable to zero volts. no external supply side switch is needed as typical off leakage is a few microamperes with full primary voltage supplied from the battery. figure 1. functional block diagram
ordering information model number manufacturing part number product revision package operating temperature SKY77187 SKY77187 mcm 3 x 3 x 0.85 mm C20 c to +85 c copyright ? 2009, skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyw orks solutions, inc. (skyworks) products or services. these m aterials, including the information contained herein, are provided by skyworks as a service to its customers and may be used for info rmational purposes only by the customer. skyworks assumes no res ponsibility for errors or omissions in these materials or the information contained herein. skyworks may change its documentat ion, products, services, specific ations or product descriptions at any time, without notice. skyworks makes no commitment to update the materials or information and shall have no responsib ility whatsoever for conflicts, incompatibilities, or other diff iculties arising from any future changes. no license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document . skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, re production or use of skyworks products, information or mate rials, except as may be provided in skyworks terms and conditions of sale. the materials, products and information are pr ovided as is without warranty of any ki nd, whether express, implied, statutory, or otherwise, including fitness for a particular purpose or use, merchantability, performance, qualit y or non-infringement of any intellectual property right; all su ch warranties are hereby expressly disclaimed. skyworks does not warrant the accu racy or completeness of the information, text, graphics or other items contained within these ma terials. skyworks shall not be liable for any damages, including but not limited to any special, indirect, incidental, statutory, or consequentia l damages, including without limitation, lost revenues or lost profits that may result from the use of the materials or information, whet her or not the recipient of mat erials has been advised of the possibility of such damage. skyworks products are not intended for use in medical, lifesavi ng or life-sustaining applications, or other equipment in which the failure of the skyworks products could lead to personal injury, death, physical or environmental damage. skyworks customers using or selling skyworks products for use in such applications do so at their own risk and agree to fully indemnify skyworks for any damages resulting from such improper use or sale. customers are responsible for their products and applications us ing skyworks products, which ma y deviate from published specifi cations as a result of design defects, errors, or operation of products outside of published pa rameters or design specifications. customers sh ould include design and operating safeguards to minimize these and other risks. skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of skyworks products outsid e of stated published specifications or parameters. skyworks, the skyworks symbol, breakthrough simplicity, dcr, he lios, hip3, innovation to go, intera, ipac, lipa, polar loop, and system smart are trademarks or registered trademarks of skyworks solutions, inc., in the united states and other count ries. third-party brands and names are for identification purpose s only, and are the property of their respective owners. additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.
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