skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 200993b ? skyworks proprietary and confidential information. ? products and product informat ion are subject to change with out notice. ? january 21, 2008 1 product summary SKY77441 multi-mode / multi-band pa module for lte fdd band vii (2500C2570 mhz) and lte tdd bands 38 / 40 (2300C2620 mhz) applications ? long-term evolution (lte) fdd and tdd ? evolved universal terrestrial radio access networks (eutran) ? handsets and data cards features ? qpsk, 16qam modulations ? up to 20 mhz bandwidths ? up to 100 resource blocks ? band vii linear power @ 3.4 v - lte: 27.5 dbm - wcdma: 28.5 dbm ? low voltage positive bias supply - 3.0 v to 4.6 v ? supports low collector voltage operation down to 1.5 v ? excellent linearity, efficiency ? large dynamic range ? low profile 16-pad package - 4 mm x 4 mm x 0.85 mm ? analog bias current control using vba pad ? ingap bifet technology ? skyworks green? packaging technology the SKY77441 power amplifier module (pam) is a fully matched, surface mount module developed for lte / eutran fdd and tdd applications. this small and efficient module packs full coverage of lte fdd band vii and lte fdd bands 38 / 40 into a single compact package, and is capable of delivering the linear wcdma power up to 28.5 dbm from 2.3 to 2.7 ghz. the SKY77441 meets the stringent spectral linearity requirements of lte modulation with qpsk / 16qam modulations from 1.4 mhz to 20 mhz bandwidth and full or partial resource block allocations with high power added efficiency. integration of the pam simplifies the design of the 4g-compatible handset radios and data cards as all the active rf circuitry, including the pa, input, interstage and output matching circuits and power detector are optimized within the single module component. output match is realized off-chip within the module package to optimize efficiency and power performance into a 50 load. the device is manufactured with skyworks bifet process that provides for all positive voltage dc supply operation while maintaining high efficiency and good linearity. primary bias to the SKY77441 is supplied via the vcc1 and vcc2 pads directly from a three-cell ni-cad, a single-cell li-ion, or other suitable batteries with outputs in the 3.0 to 4.6 volt range, while the bias network is powered up with the vccb pad. dc-dc converter operation can be supported with lower power operation down to 1.5 v. power down is accomplished by setting a logic low level on the ven pad. no external supply side switch is needed as typical off leakage is 100 microamperes with full primary voltage supplied from the battery. the vmode pad is used to switch between high and low power modes to reduce current consumption and gain in the back-off conditions. vba is used to further control the current consumption in the low power mode. figure 1. functional block diagram
ordering information model number manufacturing part number product revision package operating temperature SKY77441 SKY77441 mcm 4x4x0.85 mm C20 c to +85 c ?2007C2008, 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 co ntained 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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