MT1110

MI C R O T U N E® RF SILICON AND SUBSYSTEMS SOLUTIONS FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS MT1110 RF AMPLIFIER PRODUCT BRIEF The MT1110 RF amplifier is designed for broadband CATV distribution, car TV applications, and infrastructure applications. MT1110 RF Amplifier The Microtune MT1110 radio frequency (RF) amplifier is a 75Ω internally matched amplifier designed for broadband CATV distribution, car TV applications, and infrastructure applications. The MT1110 is built using highperformance silicon-germanium (SiGe) technology and offers 15 dB gain with an industry best noise figure of 3.0 dB. It achieves a thirdorder 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 for the extended industrial and automotive temperature range of -40°C to +85°C. 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 75Ω 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 MICROTUNE M T11 10 R F AM PLI FI ER S PRODUCT BRIEF AC ELECTRICAL CHARACTERISTICS PARAMETER Power gain 3 dB gain bandwidth Noise figure Composite triple beat 112 channels, output = 25 dBmV/tone 132 channels, output = 25 dBmV/tone Composite second order (sum) 79 channels, output = 25 dBmV/tone 112 channels, output = 25 dBmV/tone 132 channels, output = 25 dBmV/tone Composite second order (difference) 79 channels, output = 25 dBmV/tone 112 channels, output = 25 dBmV/tone 132 channels, output = 25 dBmV/tone Cross modulation 79 channels, output = 25 dBmV/tone 112 channels, output = 25 dBmV/tone 132 channels, output = 25 dBmV/tone -68 -65 -63 dBc dBc dBc -55 -50 131 Ch 112 Ch 79 Ch Output = 25 dBmV / Tone MIN 1 TYP 15 MAX 1600 UNIT dB MHz dB CTB (dBc) -60 Output = 25 dBmV / Tone -62 -64 -66 -68 -70 -72 -74 -76 -78 -80 5 105 205 305 405 505 Frequency (MHz) 605 705 131 Ch 112 Ch 79 Ch 3 -72 -71 -70 -61 -58 -53 -54 -53 -52 79 channels, output = 25 dBmV/tone dBc dBc dBc dBc dBc dBc dBc dBc dBc 805 905 Figure 2 CTB vs. Frequency TYPICAL APPLICATION Rbias = 6.8 Ohms VCC = 5V 10 nF 1.2µH DC block 10 nF In 1 4 3 VBias = 4.5 V 2 DC block 10 nF Out 10µF 16V CSO Sum (dBc) -60 -65 -70 -75 -80 5 105 205 305 405 505 605 705 805 905 Frequency (MHz) 20 19 Figure 3 CSO Sum vs. Frequency -50 Output = 25 dBmV / Tone 131 Ch 112 Ch 79 Ch 18 17 16 S21 (dB) -55 CSO Difference (dBc) 0 100 200 300 400 500 600 Frequency (MHz) 700 800 900 1000 15 14 13 12 11 10 -60 -65 -70 -75 -80 Figure 1 Power Gain vs. Frequency 5 105 205 305 405 505 Frequency (MHz) 605 705 805 905 Figure 4 CSO Difference vs. Frequency Microtune, Inc., 2201 Tenth Street, 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 offices, 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 consequences 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 or 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 proper 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 risk. Microtune is a registered trademark of Microtune, Inc. MicroTuner, MicroStreamer, VideoCaster, DataCaster, and the Microtune logo are trademarks of Microtune, Inc. All other trademarks 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 PB-00008 — Rev 1.4 October 2005