skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202718b ? skyworks proprietary and confidential information. ? products and product information are subject to change without notice. ? august 30 , 2013 1 product summary sky 77731 skyhi? power amplifier module for wcdma / lte band 11 (1427.9 C 1447.9 mhz) and band 21 ( 1447.9 C 1462.9 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 ? 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 (gpio) ? integrated directional coupler ? internal blocking caps - rf i/o ports description the sky 77731 skyhi? power amplifier module (pam) is a fully matched 10 - pad surface mount module developed for wideband code division multiple access (wcdma) and long term evolution (lte) applications. this small and efficient module packs full coverage of wcdma / lte band s 11 and 21 into a single compact package. because of high efficiencies attained throughout the entire power range, the sky 77731 delivers unsurpassed talk - time advantages. the sky 77731 meets 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 eliminates the need for any external coupler. the gallium arsenide (gaas) mi crowave 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 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 77731 is manufactured with skyworks' ingap gaas heterojunction bipolar transistor (hbt) process which provides for all positiv e voltage dc supply operation and maintains high efficiency and good linearity. while primary bias to the sky 77731 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.
ordering information product name order number evaluation board part number sky 77731 skyhi? power amplifier module sky 77731 en40 - d345 - 003 v 1 copyright ? 2012, 2013, skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyworks solutions, inc. (skyworks) products or services. these materials, including the information contained herein, are provided by skyworks as a service to its customer s and may be used for informational purposes only by the customer. skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. skyworks may change its documentation, products, services, specifications or product descriptions 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 di fficulties arising from any future changes. no license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this docume nt. skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of skyworks products, information or materials, except as may be provided in skyworks terms and condition s of sale. the materials, products and information are provided as is without warranty of any kind, whether express, implied, sta tutory, 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 accura cy or completeness of the information, text, graphics or other items contained within these materials. skyworks shall not be liable for any damages, including but not limited to any special, indirect, incidental, statutory, or consequent ial damages, includ ing without limitation, lost revenues or lost profits that may result from the use of the materials or information, whether or not the recipient of m aterials 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 products could lead to personal injury, death, physical or environmental damage. skyworks customers using or selling skyworks products for use in s uch 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 using skyworks products, which may deviate from published specifications 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 t o minimize these and other risks. skyworks assumes no liabil ity for applications assistance, customer product design, or damage to any equipment resulting from the use of skyworks products outs ide of stated published specifications or parameters. skyworks, the skyworks symbol, breakthrough simplicity , and skyhi? are trademarks or registered trademarks of skyworks solutions, inc., in the united states and other countries. third - party brands and names are for identification purposes on ly, 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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