rf silicon and subsystems solutions for broadband communications and automotive electronics m i c r o t u n e m i c r o t u n e? MT1110 rf amplifier product brief the MT1110 rf amplifier is designed for broadband catv distribution, car tv applications, and infrastructure applications. the microtune MT1110 radio frequency (rf) amplifier is a 75 ? internally matched amplifier designed for broadband catv distribution, car tv applications, and infrastructure applications. the MT1110 is built using high- performance silicon-germanium (sige) technology and offers 15 db gain with an industry best noise figure of 3.0 db. it achieves a third- order intercept point of 80 dbmv while drawing the industry?s lowest current, 76 ma, from a single 5v supply. the MT1110?s darlington circuit topology produces high linearity with very low noise, while maintaining matched input and output impedances. two ac coupling capacitors, a bias resistor, and an optional inductor are the only external components required. the MT1110 is available in an sot-89 package fo r the extended industrial and automotive temperature range of -40c to +85c. the MT1110 is highly suitable for applications such as car tv antenna amplifiers or splitters for car tv receivers. applications ? set-top box ? home gateways ? catv broadband distribution ? cable splitters ? laser drivers ? optical receivers ? car tv antenna amplifiers ? splitters for car tv receivers ? wireless data ? pa driver amplifier ? if amplifier features ? cascadable 75 ? gain block ? 15 db gain ? 3 db noise figure ? unconditionally stable ? 20 db input return loss ? 1 mhz to 1600 mhz 3 db bandwidth ? typical oip3 at 76 ma is 80 dbmv at 850 mhz ? single 5v supply ? adjustable current consumption ? sot-89 package ? industry standard pin-out for drop-in compatibility MT1110 rf amplifier
MT1110 rf amplifiers product brief pb-00008 ? rev 1.4 october 2005 microtune, inc., 2201 tenth st reet, plano, tx 75074, usa tel: +1-972-673-1600, fax: +1-972-673-1602, e-mail: sales@microtune.com, web site: www.microtune.com for a detailed list of design centers, sales office s, and sales representatives, visit our web site at www.microtune.com . the information in this document is believed to be accurate and reliable. microtune assumes no responsibility for any consequen ces arising from the use of this information, nor from any infringement of patents or the rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent o r other rights of microtune. the information in this publication replaces and supersedes all information previously supplied, and is subject to change without notice. the customer is responsible for assuring that pro per design and operating safeguards are observed to minimize inherent and procedural hazards. microtune assumes no responsibility for applications assistance or customer product design. the devices described in this document are not authorized for use in medical, life-support equipment, or any other application involving a potential risk of severe property or environmental damage, personal injury, or death without prior express written approval of microtune. any such use is understood to be entirely at the user?s r isk. microtune is a registered trademark of microtune, inc. microtuner, microstreamer, videocaster, datacaster, and the microtune logo are trademarks of microtune, inc. all other tradema rks belong to their respective companies. microtune?s products are protected by one or more of the following u.s. patents: de10011662; gb1026825; es1026825; de19628727; de19904588.7-09; de348698; fr348698; gb348698; it348698; de3821716; us5,933,946; de50000802.7-08; de552624 and additional patents pending or filed. entire contents copyright ? 1996 - 2005 microtune, inc. 072105 ac electrical characteristics p arameter m in t yp m ax u nit power gain 15 db 3 db gain bandwidth 1 1600 mhz noise figure 3 db composite triple beat 79 channels, output = 25 dbmv/tone -72 dbc 112 channels, output = 25 dbmv/tone -71 dbc 132 channels, output = 25 dbmv/tone -70 dbc composite second order (sum) 79 channels, output = 25 dbmv/tone -61 dbc 112 channels, output = 25 dbmv/tone -58 dbc 132 channels, output = 25 dbmv/tone -53 dbc composite second order (difference) 79 channels, output = 25 dbmv/tone -54 dbc 112 channels, output = 25 dbmv/tone -53 dbc 132 channels, output = 25 dbmv/tone -52 dbc cross modulation 79 channels, output = 25 dbmv/tone -68 dbc 112 channels, output = 25 dbmv/tone -65 dbc 132 channels, output = 25 dbmv/tone -63 dbc typical application 4 2 1 3 in dc block 10 nf v bias = 4.5 v out 1.2h rbias = 6.8 ohms v cc = 5v dc block 10 nf 10f 16v 10 nf 10 11 12 13 14 15 16 17 18 19 20 0 100 200 300 400 500 600 700 800 900 1000 frequency (mhz) s21 (db) figure 1 power gain vs. frequency -80 -78 -76 -74 -72 -70 -68 -66 -64 -62 -60 5 105 205 305 405 505 605 705 805 905 frequency (mhz) ctb (dbc) 131 ch 112 ch 79 ch output = 25 dbmv / tone figure 2 ctb vs. frequency -80 -75 -70 -65 -60 -55 -50 5 105 205 305 405 505 605 705 805 905 frequency (mhz) cso sum (dbc) 131 ch 112 ch 79 ch output = 25 dbmv / tone figure 3 cso sum vs. frequency -80 -75 -70 -65 -60 -55 -50 5 105 205 305 405 505 605 705 805 905 frequency (mhz) cso difference (dbc) 131 ch 112 ch 79 ch output = 25 dbmv / tone figure 4 cso difference vs. frequency
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