skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 103152e ? skyworks proprietary and confiden tial information ? produc ts and product information ar e subject to change witho ut notice ? november 29, 2004 1 product summary helios ? polar loop ? rf subsystem for gsm, gprs, and edge mobile handset applications applications ? edge-based wireless data services ? gsm850, egsm900, dcs1800, and pcs1900 handsets ? gprs handsets and modules features ? polar loop? transmit modulation architecture ? integrated noise filtering; no pre-pa filters required ? closed loop phase and amplitude modulation (gmsk, 3 /8 8-psk) via control of non-linear gsm pa ? pa inside control loop provides excellent evm and phase error performance with up to 6:1 vswr without external isolator ? direct conversion receiver ? transmitter with integrated vcos ? fully integrated fractional-n synthesizer and uhf vco ? impedance matching circuitry description skyworks helios? polar loop? rf subsystem combines a direct conversion transceiver, power amplifier (pa), and a pa controller/modulator into a three-chip radio solution that saves significant space, cost, and design cycle time while providing improved performance. all of the necessary rf components needed to build a quad-band, multi-standard handset have been incorporated into the polar loop radio. the highly integrated subsystem includes skyworks sky74045 rf transceiver, SKY74046 pa controller, and sky77316 pa. at the heart of the rf subsystem is skyworks advanced polar loop transmit modulation architecture. this unique architecture enables the radio to transmit both constant as well as non- constant envelope signals through the same transmit path to minimize the number of external components required to build a mobile handset. this significantly reduces the complexity, size, cost, and power requirements of next-generation enhanced data for gsm evolution (edge) platforms. the sky74045 is based on skyworks industry-leading, single- chip direct conversion transceiver technology. this device consists of a direct conversion receiver, a transmitter with an integrated voltage controlled oscillator (vco), and a fully integrated fractional-n synthesizer. together with the SKY74046 pa controller, a seamless closed-loop transmit system is formed around the sky77316 pa. the sky74045 is fabricated using bicmos technology and is available in a 56-pin, 8 x 8 x 1 mm rf land grid array (rflga?) package. the SKY74046 is a highly integrated device used for pa and amplitude modulation control. the device requires a minimal number of external components to complete an automatic output control loop. the SKY74046 is fabricated using bicmos technology and is available in a 24-pin, 4 x 4 x 1 mm rflga package. the sky77316 pa incorporates a gsm850/900 block, a dcs1800/pcs1900 block, impedance-matching circuitry for 50 ? input and output, and a pa bias control block. two separate heterojunction bipolar transistor (hbt) blocks provide maximum performance in a small footprint. the sky77316 is fabricated using gaas technology and is available in a 16-pin, 8 x 10 x 1.5 mm multi-chip module (mcm) package. a functional block diagram for the helios polar loop rf subsystem is shown in figure 1. skyworks offers lead (pb)-free environmentally friendly packaging that is rohs compliant (european parliament for the restriction of hazardous substances).
product summary ? helios polar loop rf subsystem skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@sk yworksinc.com ? www.skyworksinc.com 2 november 29, 2004 ? skyworks proprietary and confidential information ? pr oducts and product inform ation are subject to ch ange without notice ? 103152e s239 vcxo i q t/r switch ? fractional-n synthesizer sky74045 sky77316 i q f ref SKY74046 figure 1. helios polar loop rf subsystem functional block diagram ordering information model name manufacturing part number product revision helios polar loop rf subsystem: sky74045 rf transceiver ( 26 mhz output option) sky74045 rf transceiver ( 13 mhz output option) SKY74046 pa controller sky77316 pa module sky74045-21 (pb-free package) sky74045-31 (pb-free package) SKY74046-11 (pb-free package) sky77316 copyright ? 2003, 2004 skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyw orks solutions, inc. (skywork s) products. these materials are provided by skyworks as a serv ice to its customers and may be used for informational purposes only by the customer. skyworks assumes no responsibilit y for errors or omissions in these mater ials. skyworks may make changes to its documentation, products, specifications and product descriptions at any time, without notice. skyworks makes no commitment to update the information and shall have no responsibilit y whatsoever for conflicts, incompatibilities, or other difficulties aris ing from future changes to its documentat ion, products, specif ications and product descriptions. no license, express or implied, by estoppel or otherwise, to an y intellectual property rights is granted by or under this docum ent. except as may be provided in skyworks terms and conditions of sale for such products, skyworks assumes no liability whatsoever in association with its documentation, products, specification s and product descriptions. these materials are provided as is without warranty of any ki nd, either express or implied or otherwise, relating to sale and /or use of skyworks products including warranties relating to fitness for a particular purpos e, merchantability, performance, quality or non-infringement of any patent, copyright or other intellectual property right. skyworks further does not warrant the accuracy or completeness of the information, text, graphics or other items contained within these materials. skyworks shall not be liable for any damages, in cluding special, indirect, inci dental, or consequential damage s, including without limitation, lost revenues or lost profits that may result from the use of these materials whether or not the recipien t of materials has been adv ised of the possibility of such damage. skyworks products are no t intended for use in medical, lifesaving or life-su staining applications. skyw orks customers using or selling skyworks products for use in such applications do so at their own risk and agree to fully indemnify skyworks for an y damages resulting from such improper use or sale. the following are trademarks of skyworks solutions, inc.: skyworks?, the skyw orks logo, and breakthro ugh simplicity?. product n ames or services listed in this publication are for identification purposes only, and may be trademarks of skyw orks or other third parties. third-party br ands and names are the property of their respective owners. addition al information, posted at www.skyworksinc.com, is incorporated by reference.
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