Pulse-Width Modulated RF Transmitters
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TRF3520 GSM RF Modulator/Driver Amplifier EVM
Application Brief SWRA020A TRF3520 GSM RF Modulator/Driver Amplifier EVM Wireless Communication Business Unit This document describes the Texas Instruments (TI™) TRF3520 evaluation module (EVM) board and associated EVM software, which allows the evaluation and the demonstration of the TRF3520 GSM RF Modulator/Driver Amplifier. Contents Product Support ......................................................................................................................................2 Introduction .............................................................................................................................................3 TRF3520 Block Diagram and Functional Description .............................................................................3 Schematic................................................................................................................................................6 Part List ...................................................................................................................................................7 PCB Layout..............................................................................................................................................7 EVM Design Notes...................................................................................................................................8 EVM Tests..............................................................................................................................................12 EVM Software ........................................................................................................................................15 -
Why-Send-HD-Over-Coax.Pdf
1 Why Send HD Over Coax? HD Video Distribution Is In Demand Prices for HDTVs are plummeting, while HD sources are multiplying. To keep up with technology, most businesses are upgrading to HD; in fact, many franchisees for restaurants and bars are required by corporate brand standards to upgrade to HD. If they don’t, their businesses risk being marginalized as outdated or lacking innovation, and customers will head down the block for dinner or drinks instead. What’s more, the explosive growth of digital signage has driven demand for HD video distribution systems. Bars and restaurants are all looking for effi cient ways to upgrade to HD, making HD video distribution a rapid growth opportunity for integrators. Existing Solutions Existing HD video distribution solutions are often labor intensive, requiring new cabling to each display. To share an HD source with 3 HDTVs in remote locations, you might pull new component cables to each HDTV, or CAT5 cabling (with baluns to provide the appropriate connection at each end), or perhaps HDMI cabling. Each represents substantial installation effort, and the expense of a hub of some sort. A New (Old) Way In contrast, distributing HD over coaxial cabling often allows the use of existing cabling, substantially reducing labor. This is accomplished using RF modulation of the source - a technique that’s been around for some time, but has now made the leap to HD. ZeeVee - White Paper - Why Send HD Over Coax 2 HD Encoder/ RF Modulator RF Modulator Basics An RF modulator turns an AV source into a TV channel, which is then broadcast over coaxial cabling within a building. -
Goqam Modulator RF Output and IF Output Hardware Installation and Operation Guide
GoQAM Modulator RF Output and IF Output Hardware Installation and Operation Guide Please Read Important Please read this entire guide. If this guide provides installation or operation instructions, give particular attention to all safety statements included in this guide. Notices Trademark Acknowledgments Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. A listing of Cisco's trademarks can be found at www.cisco.com/go/trademarks. Third party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1009R) Publication Disclaimer Cisco Systems, Inc. assumes no responsibility for errors or omissions that may appear in this publication. We reserve the right to change this publication at any time without notice. This document is not to be construed as conferring by implication, estoppel, or otherwise any license or right under any copyright or patent, whether or not the use of any information in this document employs an invention claimed in any existing or later issued patent. Copyright © 2007, 2012 Cisco and/or its affiliates. All rights reserved. Printed in the United States of America. Information in this publication is subject to change without notice. No part of this publication may be reproduced or transmitted in any form, by photocopy, microfilm, xerography, or any other means, or incorporated into any information retrieval system, electronic or mechanical, for any purpose, without the express permission of Cisco Systems, Inc. Contents Safety Precautions vii FCC Compliance xi About This Guide xiii Chapter 1 Introducing the GoQAM 1 System Overview .................................................................................................................... -
Use Style: Paper Title
AICT 2018 : The Fourteenth Advanced International Conference on Telecommunications Proposal of Power Saving Techniques for Wireless Terminals Using CAZAC-OFDM Scheme Takanobu Onoda, Ryota Ishioka and Masahiro Muraguchi Department of Electrical Engineering, Tokyo University of Science 6-3-1 Niijuku, Katsushika-ku, Tokyo, 125-0051, Japan E-mail: [email protected], [email protected], [email protected] Abstract— A major drawback of Orthogonal Frequency spectral efficiency, and additional power consumption of Division Multiplexing (OFDM) signals is extremely high DSPs. Peak-to-Average Power Ratio (PAPR). Signals with high On the other approach to overcome the problem, some PAPR lead to a lowering of the energy efficiency of the circuit topology for high-efficiency OFDM power amplifier Power Amplifiers (PAs) and the shortened operation time design have been proposed [2]. Here, a polar modulation PA, causes a serious problem in battery-powered wireless or an envelope tracking PA, is the most promising one. In the terminals. In this paper, we propose a new power saving polar modulation, OFDM signal is separated into phase technique for wireless terminals. It is the combination of modulation (PM) component and amplitude modulation a polar modulation technique and Constant Amplitude (AM) one. The PM component is input to the PA as the Zero Auto-Correlation (CAZAC) equalizing technique. quadrature signal with constant amplitude. On the other, the Proposed the polar modulation technique for the PA AM component is used as envelope tracking data, which employs a current control by changing the common-gate supplies to the PA as drain DC biasing from adaptive output stage bias in a cascade amplifier circuit. -
Design and Implementation of a Broadband RF-DAC Transmitter for Wireless Communications
Design and Implementation of a Broadband RF-DAC Transmitter for Wireless Communications Von der Fakultät für Elektrotechnik und Informationstechnik der Rheinisch-Westfälischen Technischen Hochschule Aachen zur Erlangung des akademischen Grades eines Doktors der Ingenieurwissenschaften genehmigte Dissertation vorgelegt von Diplom-Ingenieur Niklas Zimmermann aus Münster Berichter: Universitätsprofessor Dr.-Ing. Stefan Heinen Universitätsprofessor Dr.-Ing. Gerd Ascheid Tag der mündlichen Prüfung: 1. Juli 2011 Diese Dissertation ist auf den Internetseiten der Hochschulbibliothek online verfügbar. Bibliografische Information der Deutschen Nationalbibliothek Die Deutsche Nationalbibliothek verzeichnet diese Publikation in der Deutschen Nationalbibliografie; detaillierte bibliografische Daten sind im Internet über http://dnb.d-nb.de abrufbar. ISBN 978-3-8439-0042-3 D 82 (Diss. RWTH Aachen University, 2011) © Verlag Dr. Hut, München 2011 Sternstr. 18, 80538 München Tel.: 089/66060798 www.dr.hut-verlag.de Die Informationen in diesem Buch wurden mit großer Sorgfalt erarbeitet. Dennoch können Fehler nicht vollständig ausgeschlossen werden. Verlag, Autoren und ggf. Übersetzer übernehmen keine juristische Verantwortung oder irgendeine Haftung für eventuell verbliebene fehlerhafte Angaben und deren Folgen. Alle Rechte, auch die des auszugsweisen Nachdrucks, der Vervielfältigung und Verbreitung in besonderen Verfahren wie fotomechanischer Nachdruck, Fotokopie, Mikrokopie, elektronische Datenaufzeichnung einschließlich Speicherung und Übertragung auf weitere Datenträger sowie Übersetzung in andere Sprachen, behält sich der Autor vor. 1. Auflage 2011 To the memory of my father, Gebhard Zimmermann Acknowledgment First of all, I want to thank Prof. Dr.-Ing. Stefan Heinen. This thesis would not have been possible without him, as he gave me the opportunity to work on this exciting topic and shared his rich experience in the field of RF and analog circuit and system design with me. -
UNIVERSITY of CALIFORNIA, SAN DIEGO CMOS RF Power Amplifier Design Approaches for Wireless Communications a Dissertation Submitt
UNIVERSITY OF CALIFORNIA, SAN DIEGO CMOS RF Power Amplifier Design Approaches for Wireless Communications A dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in Electrical Engineering (Electronic Circuits and Systems) by Sataporn Pornpromlikit Committee in charge: Professor Peter M. Asbeck, Chair Professor Prabhakar R. Bandaru Professor Andrew C. Kummel Professor Lawrence E. Larson Professor Paul K.L. Yu 2010 Copyright Sataporn Pornpromlikit, 2010 All rights reserved. The dissertation of Sataporn Pornpromlikit is approved, and it is acceptable in quality and form for publication on micro- film and electronically: Chair University of California, San Diego 2010 iii DEDICATION To my family. iv EPIGRAPH ”Education is what remains after one has forgotten what one has learned in school.” — Albert Einstein v TABLE OF CONTENTS Signature Page................................... iii Dedication...................................... iv Epigraph.......................................v Table of Contents.................................. vi List of Figures.................................... viii List of Tables.................................... xi Acknowledgements................................. xii Vita......................................... xiv Abstract of the Dissertation............................. xv Chapter 1 Introduction.............................1 1.1 CMOS Technology and Scaling...............2 1.2 Toward Fully-Integrated CMOS Transceivers........4 1.3 Power Amplifier Design...................5 -
Delta-Sigma Digital-RF Modulation for High Data Rate Transmitters Albert
Delta-Sigma Digital-RF Modulation for High Data Rate Transmitters by Albert Jerng B.S. Electrical Engineering Stanford University, 1994 M.S. Electrical Engineering Stanford University, 1996 Submitted to the Department of Electrical Engineering and Computer Science in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical Engineering and Computer Science at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY Sept Z006 Sept ý006 @ Massachusetts Institute of Technology 2006. All rights reserved. Author partment of lectrical Engineering and Computer Science Department of Q letrical Engineering and Comput'er" S' ience September 21, 2006 C ertified by .... ... .............................. Charles G. Sodini -I Professor Th2iess Supervisor Accepted by............ .-......... ............... Arthur C. Smith MASSACHUSErr S INSTITUTE Uhairman, Department Committee on Graduate Students OF TECHN OLOGY APR 3 0 2007 ARCHIVES LIBRARIES Delta-Sigma Digital-RF Modulation for High Data Rate Transmitters by Albert Jerng Submitted to the Department of Electrical Engineering and Computer Science on September 21, 2006, in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical Engineering and Computer Science Abstract A low power, wideband wireless transmitter utilizing AE direct digital modulation of an RF carrier is presented. The transmitter architecture replaces high dynamic range analog circuits with high speed digital circuits and a passive LC bandpass filter, saving power and area compared to conventional IQ modulators for wideband systems. A prototype transmitter IC built in 0.13 pm CMOS demonstrates a data rate of 1.2 Gb/s using OFDM modulation in a bandwidth of 200 MHz centered at 5.25 GHz. The modulator consumes 187 mW and occupies a die area of 0.72 mm2 . -
Model 5872 Mattel Electronics
.... • • • , • ~ • ,• • -- - • • • (\ - - • MODEL 5872 - MATTEL ELECTRONICS 5150 Rosecrans Avenue Hawthorne. California 90250 I- \ • • • TABLE OF CONTENTS ,_. -. '. .' 1. SPECiFiCATIONS·,; ......................................... Page 1 • • .. 2. OPERATING INSTRUCTIONS ................................ Page 2 3. SYSTEM DESCRIPTION AND OPERATION ................... Page 5 • • 4. SYSTEM TESTING. • . .. Page 9 . ~ ..' . 5. DISASSEMBLY PROCEDURE ................................ Page 9 6. PRELIMINARY CHECKLIST ................................. Page 10 7. TROUBLESHOOTING ...................................... Page 11 _., 8. ADJUSTMENTS ............................................ Page 20 PARTS LIST ............................................................................................... Page 21 . 10. SCHEMATIC DIAGRAM ..................................... Page 25 . • • • • • • ·. " . .. • .. • • • • • ~ . - . .. • • .. • • -• ... • - • • • • • • . - , --- '--, · . • • • • • • - - • • • •• ! • • SPECIFICATIONS MICROPROCESSOR (CPU) - General Instrument CP-1610 16-bit processor. MEMORY - 7K internal ROM, RAM, and 1/0 structures, remaining 64K address space available for external programs. CONTROLS - Two removable hand controllers: 12-bulton numeric keypad, four action buttons, 16-position directional movement disc. SOUND - Programmable sound generator (PSG) capable of producing three simultaneous sound patterns. COLOR REPRODUCTION - 16 different color hues: Black Gray Blue Cyan Red Orange Tan Brown Dark Green Magenta Light Green Light Blue -
Vecoax Micromod 3 Av + Hdmi Rf Modulator Manual
VECOAX MICROMOD 3 AV + HDMI RF MODULATOR MANUAL Pro Video Instruments VECOAX MICROMOD 3 AV + HDMI RF MODULATOR PRODUCT SPECS & FEATURES Power - 12v/DC (12v/1A) All Major TV Encoder standards build-in. No need to reprogram or flash the unit to a different Format. Supports QAM (J.83B Digital Cable), ATSC (Digital Over the Air Channels), ISDBTb, DVBT, DVB-C, DMBT Compact Design makes installation easy. Works with most TV brands, including Samsung, Sony, Vizio, LG, and More. Receives on TVs as its own HDTV channel as a FULL HD signal Up to 1080P with Dolby Digital Audio (AC3) Easy Plug and Play Setup with customization options available in the easy to use menu via onboard Color Display and/or Web Interface. Works With any HD Video HDMI source or Composite Video Source (CVBS) *(720P or 1080P/I Fixed Resolution). Can be mixed with other HDTV signals such as Digital Cable or Over the Air Channels* (depending on Frequencies available for you to use) Modular – Expandable – Reliable - 5 Year Warranty - Affordable VeCOAX MicroMod 3 AV + HDMI RF Modulator Manual 1 Pro Video Instruments NOTE: BEFORE INSTALLATION Please test each unit UNMOUNTED ON A TEST BENCH with your Test TV before installing your units to ensure you are receiving the Test Pattern signal. Then Program your unit. If installing Multiple units, make sure each unit has its own frequency it's broadcasting on as well as it’s own Major/Minor. This makes troubleshooting easier. To test your unit, simply connect your TV with a short piece of Coax cable to the RF out of the Unit. -
Application Note
Application Note Bob Plowdrey, ( (248) 374-2511 Fax: (248) 374-2501 E-Mail: bob.plowdrey @infineon.com Martin Schneider, ( +49 89 234 25478 Fax: +49 89 234 25895 E-Mail: martin.schneider @infineon.com Video-Modulator with PLL TDA 6060XS High Frequency Products TV – Video 7'$;6 7DEOHRI&RQWHQWV -2- Function -3- Feature Description -3- Programmable Features -5- Application Circuit -6- Performance Data -7- Multiple IC Configuration with one Crystal Reference -10- Evaluation Board -11- Reference Application (UHF-Band) -12- Application Information -13- Components list -15- PC-Board and Mounting Diagram -16- Mounting Diagram -17- Printed Circuit Board -18- I2C Bus Software -19- TDA6060XS Initial Setup Menus -20- TDA6060XS IC Settings and Register Menus -21- RF and Sound Carrier Frequency and Settings Menus -22- Video and Sound Carrier Settings Menus -23- Status and Miscellaneous Menus -24- ICON Definitions and Byte Status Menu -25- Hardware Interface -26- Passive Hardware Interface -27- Notes -28- File: 6060PS3.DOC High Frequency Products TV - Video Page 2 7'$;6 )XQFWLRQ The TDA6060XS RF TV modulator is a single silicon chip, controlled by software, that translates video and audio signals to any worldwide television RFchannel format. This IC is suitable for all modulator boxes including satellite receivers, cable headend, set-top boxes, video recorders and games. )HDWXUH'HVFULSWLRQ The TDA6060XS IC combines a digitally programmable phase locked loop (PLL) with a multi-standard video modulator and programmable sound FM and AM modulator. This highly integrated chip allows for simpler design and lower system cost and compatibility with all world standards, including PAL, NTSC and SECAM. It offers designers maximum flexibility with an on-board PLL that permits the tuning process, gain settings and status with I2C bus microprocessor control. -
Pseudo-Polar Modulation for Radio Transmitters Pseudopolare Modulation Für Funksender Modulation Pseudopolaire Pour Emetteurs Radio
(19) TZZ_66_ __T (11) EP 1 661 241 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.: of the grant of the patent: H03C 5/00 (2006.01) 05.12.2012 Bulletin 2012/49 (86) International application number: (21) Application number: 04778052.3 PCT/US2004/022345 (22) Date of filing: 13.07.2004 (87) International publication number: WO 2005/020430 (03.03.2005 Gazette 2005/09) (54) PSEUDO-POLAR MODULATION FOR RADIO TRANSMITTERS PSEUDOPOLARE MODULATION FÜR FUNKSENDER MODULATION PSEUDOPOLAIRE POUR EMETTEURS RADIO (84) Designated Contracting States: (72) Inventor: DENT, Paul, W. AT BE BG CH CY CZ DE DK EE ES FI FR GB GR Pittsboro, NC 27312 (US) HU IE IT LI LU MC NL PL PT RO SE SI SK TR (74) Representative: Lundqvist, Alida Maria Therése et (30) Priority: 11.08.2003 US 639164 al BRANN AB (43) Date of publication of application: P.O. Box 12246 31.05.2006 Bulletin 2006/22 102 26 Stockholm (SE) (60) Divisional application: (56) References cited: 10179396.6 / 2 278 703 EP-A- 1 035 701 GB-A- 2 363 535 US-A- 5 420 536 US-B1- 6 194 963 (73) Proprietor: Telefonaktiebolaget L M Ericsson (Publ) 12625 Stockholm (SE) Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. Notice of opposition shall not be deemed to have been filed until the opposition fee has been paid. -
LM2889 RF Modulator
LM2889 R.F. Modulator AN-402 National Semiconductor LM2889 R.F. Modulator Application Note 402 Martin Giles June 1985 Introduction older receivers that have inadequate shielding between the antenna input and the tuner. Two I/C RF modulators are available that have been espe- The characteristics of the R.F. signal are loosely regulated cially designed to convert a suitable baseband video and by the FCC under part 15, subpart H. Basically the signal audio signal up to a low VHF modulated carrier (Channel 2 can occupy the standard T.V. channel bandwidth of 6 MHz, through 6 in the U.S., and 1 through 3 in Japan). These are and any spurious (or otherwise) frequency components the LM1889 and LM2889. Both I/C's are identical regarding more than 3 MHz away from the channel limits must be the R.F. modulation functionÐincluding pin-outsÐand can suppressed by more than 30 dB from the peak carrier provide either of two R.F. carriers with dc switch selection of b level. The peak carrier power is limited to 3 mVrms in 75X the desired carrier frequency. The LM1889 includes a crys- or 6 mVrms in 300X, and the R.F. signal must be hard-wired tal controlled chroma subcarrier oscillator and balanced to the receiver through a cable. Most receivers are able to modulators for encoding (R-Y) and (B-Y) or (U) and (V) color provide noise-free pictures when the antenna signal level difference signals. A sound intercarrier frequency L-C oscil- exceeds 1 mVrms and so our goal will be to have an R.F.