skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com 201777b ? skyworks proprietary and confidential information. ? products and product information are subject to change without notice. ? august 30, 2013 1 product summary sky 77768 skyhi? power amplifier module for wcdma / hsdpa / hsupa / hspa + / lte C band viii ( 880 C 915 mhz) applications ? wcdma handsets ? hsdpa ? hsupa ? hspa + ? lte features ? low voltage positive bias supply 3.2 v to 4.2 v ? good linearity ? high efficiency - 5 0 % at 28.5 dbm ? large dynamic range ? small, low profile package - 3 mm x 3 mm x 0 .9 mm - 10- pad configuration ? power down control ? ingap ? supports low collector voltage operation ? digital enable ? no v ref required ? cmos compatible control signals ? integrated directional coupler description the sky 77768 skyhi? power amplifier module (pam) is a fully matched 10 - pad surface mount module developed for wideband code division multiple access (wcdma) applica tions. this small and efficient module packs full 880 - 915 mhz bandwidth coverage into a single compact package. because of high efficiencies attained throughout the entire power range, the sky 77768 delivers unsurpassed talk - time advantages. the sky 77768 me ets the stringent spectral linearity requirements of high speed downlink packet access (hsdpa), high speed uplink packet access (hsupa), and long term evolution (lte) data transmission with high power added efficiency. an integrated directional coupler eli minates the need for any external coupler. 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 precisi on biasing for the mmic affords a true cmos - compatible control interface. output match into a 50 - ohm load , realized off - chip within the module package , optimize s efficiency and power performance. the sky 77768 is manufactured with skyworks' ingap gaas heter ojunction bipolar transistor (hbt) process which provides for all positive voltage dc supply operation and maintains high efficiency and good linearity. while primary bias to the sky 77768 can be supplied directly from any suitable battery with an output of 3.2 v to 4.2 v, optimal performance is obtained with vcc2 sourced from a dc - dc power supply adjusted w ithin 0.5 v to 3.4 v based on target output power levels. power down executes by setting 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. sky 77768 functional block diagram
ordering information product name order number evaluation board part number sky 77768 skyhi? power amplifier module sky 77768 en40 - d 345 - 00 3 copyright ? 2012, 2013, skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyworks solut ions, inc. (skyworks) 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 esponsib ility 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 information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. no license, whether express, implied, by estoppel or otherwise, is granted to any intellectual pr operty rights by this 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 non - 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 thes e materials. skyworks shall not be liable for any damages, including but not limited to any special, indirect, incidental, statutory, or consequent ial 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 failu re 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 d o so at their own risk and agree to fully indemnify skyworks for any dam ages resulting from such improper 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 design specifications. customers should 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 resul ting from the use of skyworks products outside of stated published specifications or parameters. skyworks, the skyworks symbol, breakthrough simplicity skyhi and system smart are trademarks or registered trademarks of skyworks solutions, inc., in the united states and other countrie s. third - party brands and names are for identification purposes only, and are the property of their respective owners. additional i nformation, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.
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