skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202 748a ? skyworks proprietary and confidential information ? products and product informatio n are subject to change wit hout notice. ? february 20, 2013 1 p roduct summary sky 77580 tx quad - band / rx dual - band front - end module for gsm / gprs (824 - 915 mhz ) ( 1710- 1910 mhz) applications ? dual - band cellular handsets encompassing - class 4 gsm850/ gsm 900 - dcs1800/pcs1900 - class 12 gprs multi - slot operation - edge downlink compatible features ? high efficiency - 4 7 % ( gsm850) - 48% ( gsm900) - 42% ( dcs1800 /pcs1900) ? low transmit supply current - 1. 21 a ( gsm850) - 1. 18 a ( gsm900) - 0. 85 a ( dcs 1800 /pcs1900) ? 50 ? matched input/output ? tx C vco - to - antenna and antenna - to - rx - saw filter rf interface ? rf switch afford s high linearity, low insertion loss, and 0 v dc on rx ports ? small , low profile package - 6 mm x 6 mm x 0 . 9 mm - 28- pad configuration description sky 77580 is a transmit and receive f ront - e nd m odule ( fe m ) with integrated power amplifier control designed in a low profile, compact form factor for quad - band cellular handsets comprising gsm850 / gsm 900 and dcs1800 / pcs1900 operation. t he sky 77580 offers a complete transmit vco - to - antenna and antenna - to - receive saw filter solution. the fem also supports class 12 general packet radio service (gprs) multi - slot operation and edge downlink . the module consists of a gsm850 / gsm 900 pa block and a dcs1800 / pcs1900 pa block, impedance - matching c ircuitry for 50 ohm input and output impedances, tx harm onics filtering, high linearity / low insertion loss rf switch , and a power amplifier control (pac) block . one pa block supports the gsm850 / gsm 900 band s and the other pa block supports the dcs1800 / pcs1900 band s . both pa blocks share common power supply pads to distribute current. the output of each pa block and the outputs to the two receive pads are connected to the antenna pad through an rf switch . the gaas die, switch die , and passive component s are mounted on a multi - layer laminate substrate. the assembly is encapsulated with plastic overmold. band selection and control of transmit and receive are performed using four external control pads. refer to the block diagram in figure 1 below. the ban d select pad, bs, select s gsm850 , gsm 900 , dcs , and pcs modes of operation. transmit enable tx en control s receive or transmit mode of the rf switch ( tx = logic 1). proper timing between transmit enable tx en and analog power control vramp allows for high iso lation between the antenna and tx C vco while the vco is being tuned prior to the transmit burst. the sky 77580 is compatible with logic levels from 1.2 v to 2.9 v for bs , tx en , and vsw_en pads.
ordering information order number order number evaluation board part number SKY77580 tx quad - band / rx dual - band front - end module sky 77580 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 customers 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 descriptio n s 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 exp ress, 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, reproduction or use of skyworks products, information or materials, 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, i ncluding 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 t he 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 c onsequential 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 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 such applications d o 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 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 t o 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 outside of stated published specifications or parameters. skyworks, the skyworks symbol, breakthrough simplicity, dcr, helios, 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 countries. third - party brands and names are for identification purposes 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.
|
