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The limiting amplifier before the quadrature detector | Forum for Electronics
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It may not display this or other websites correctly.<br />You should upgrade or use an <a href="https://www.google.com/chrome/" target="_blank" rel="noopener">alternative browser</a>.</div> <div class="p-body-header"> <div class="p-title "> <h1 class="p-title-value">The limiting amplifier before the quadrature detector</h1> </div> <div class="p-description"> <ul class="listInline listInline--bullet"> <li> <i class="fa--xf fal fa-user" aria-hidden="true" title="Thread starter"></i> <span class="u-srOnly">Thread starter</span> <a href="/members/hr-praveenraj.12391/" class="username u-concealed" dir="auto" data-user-id="12391" data-xf-init="member-tooltip">hr.praveenraj</a> </li> <li> <i class="fa--xf fal fa-clock" aria-hidden="true" title="Start date"></i> <span class="u-srOnly">Start date</span> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/" class="u-concealed"><time class="u-dt" dir="auto" datetime="2003-12-27T04:31:04+0000" data-time="1072499464" data-date-string="Dec 27, 2003" data-time-string="4:31 AM" title="Dec 27, 2003 at 4:31 AM">Dec 27, 2003</time></a> </li> </ul> </div> </div> <div class="p-body-main p-body-main--withSidebar "> <div class="p-body-contentCol"></div> <div class="p-body-sidebarCol"></div> <div class="p-body-content"> <!-- wall paper --> <div id='div-gpt-eda_wallpaper'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda_wallpaper'); }); </script> </div> <div class="p-body-pageContent"> <div class="block block--messages" data-xf-init="" data-type="post" data-href="/inline-mod/" data-search-target="*"> <span class="u-anchorTarget" id="posts"></span> <div class="block-outer"> <dl class="blockStatus"> <dt>Status</dt> <dd class="blockStatus-message blockStatus-message--locked"> Not open for further replies. </dd> </dl> </div> <div class="block-outer"></div> <div class="block-outer js-threadStatusField"></div> <div class="block-container lbContainer" data-xf-init="lightbox select-to-quote" data-message-selector=".js-post" data-lb-id="thread-13636" data-lb-universal="0"> <div class="block-body js-replyNewMessageContainer"> <article class="message message--post js-post js-inlineModContainer " data-author="hr.praveenraj" data-content="post-55024" id="js-post-55024" > <span class="u-anchorTarget" id="post-55024"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55024" rel="nofollow" > <time class="u-dt" dir="auto" datetime="2003-12-27T04:31:04+0000" data-time="1072499464" data-date-string="Dec 27, 2003" data-time-string="4:31 AM" title="Dec 27, 2003 at 4:31 AM">Dec 27, 2003</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55024" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/55024/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55024" rel="nofollow"> #1 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" > <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/hr-praveenraj.12391/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="12391" data-xf-init="member-tooltip" style="background-color: #33cc8f; color: #0f3d2b"> <span class="avatar-u12391-m" role="img" aria-label="hr.praveenraj">H</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/hr-praveenraj.12391/" class="username " dir="auto" data-user-id="12391" data-xf-init="member-tooltip">hr.praveenraj</a></h4> <h5 class="userTitle message-userTitle" dir="auto">Newbie level 2</h5> </div> <img src="/styles/images/ranks/alevel2.gif" alt="Newbie level 2"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Dec 27, 2003</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>2</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/hr-praveenraj.12391" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,281</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 23 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-55024" data-lb-caption-desc="hr.praveenraj · Dec 27, 2003 at 4:31 AM"> <article class="message-body js-selectToQuote"> <div > <div class="bbWrapper"><b>limiting if amplifier</b><br /> <br /> in reciever ckt,after mixer limiting amplifier haveing 92db of gain,no. of stages of amplifier in limiting amplifier is 6 stages.i/p to amplifier is 50mpp<br /> then from this data we will get o/p arround 1.5kv.<br /> from this data we have to get o/p arround 800mpp.<br /> onething we have to note o/p is feed back to i/p, he is mentioning that for <br /> dc cancellation & for dc biasing.get me the answer.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="hr.praveenraj" data-content="post-55025" id="js-post-55025" itemscope itemtype="https://schema.org/Comment" itemid="https://www.edaboard.com/posts/55025/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/" /> <span class="u-anchorTarget" id="post-55025"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55025" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2003-12-27T04:33:53+0000" data-time="1072499633" data-date-string="Dec 27, 2003" data-time-string="4:33 AM" title="Dec 27, 2003 at 4:33 AM" itemprop="datePublished">Dec 27, 2003</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55025" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/55025/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55025" rel="nofollow"> #2 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/hr-praveenraj.12391/"> <meta itemprop="url" content="https://www.edaboard.com/members/hr-praveenraj.12391/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/hr-praveenraj.12391/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="12391" data-xf-init="member-tooltip" style="background-color: #33cc8f; color: #0f3d2b"> <span class="avatar-u12391-m" role="img" aria-label="hr.praveenraj">H</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/hr-praveenraj.12391/" class="username " dir="auto" data-user-id="12391" data-xf-init="member-tooltip"><span itemprop="name">hr.praveenraj</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Newbie level 2</h5> </div> <img src="/styles/images/ranks/alevel2.gif" alt="Newbie level 2"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Dec 27, 2003</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>2</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/hr-praveenraj.12391" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,281</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 23 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-55025" data-lb-caption-desc="hr.praveenraj · Dec 27, 2003 at 4:33 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">in reciever ckt,after mixer limiting amplifier haveing 92db of gain,no. of stages of amplifier in limiting amplifier is 6 stages.i/p to amplifier is 50mpp <br /> then from this data we will get o/p arround 1.5kv. <br /> from this data we have to get o/p arround 800mpp. <br /> onething we have to note o/p is feed back to i/p, he is mentioning that for <br /> dc cancellation & for dc biasing.get me the answer.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="brmadhukar" data-content="post-55060" id="js-post-55060" itemscope itemtype="https://schema.org/Comment" itemid="https://www.edaboard.com/posts/55060/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/" /> <span class="u-anchorTarget" id="post-55060"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55060" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2003-12-27T08:59:16+0000" data-time="1072515556" data-date-string="Dec 27, 2003" data-time-string="8:59 AM" title="Dec 27, 2003 at 8:59 AM" itemprop="datePublished">Dec 27, 2003</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55060" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/55060/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55060" rel="nofollow"> #3 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/brmadhukar.3234/"> <meta itemprop="url" content="https://www.edaboard.com/members/brmadhukar.3234/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/brmadhukar.3234/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="3234" data-xf-init="member-tooltip" style="background-color: #e085c2; color: #8f246b"> <span class="avatar-u3234-m" role="img" aria-label="brmadhukar">B</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/brmadhukar.3234/" class="username " dir="auto" data-user-id="3234" data-xf-init="member-tooltip"><span itemprop="name">brmadhukar</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Advanced Member level 3</h5> </div> <img src="/styles/images/ranks/glevel3.gif" alt="Advanced Member level 3"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Jun 21, 2002</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>839</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>42</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/brmadhukar.3234" class="fauxBlockLink-linkRow u-concealed">84</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>11</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,298</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=India" rel="nofollow noreferrer" target="_blank" class="u-concealed">India</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 6,783 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-55060" data-lb-caption-desc="brmadhukar · Dec 27, 2003 at 8:59 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><b>Re: limiting if amplifier</b><br /> <br /> Hi,<br /> Do be clear in your "requests". It is very difficult to follow what you need.<br /> BRM</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="FANT" data-content="post-55099" id="js-post-55099" itemscope itemtype="https://schema.org/Comment" itemid="https://www.edaboard.com/posts/55099/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/" /> <span class="u-anchorTarget" id="post-55099"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55099" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2003-12-27T15:23:13+0000" data-time="1072538593" data-date-string="Dec 27, 2003" data-time-string="3:23 PM" title="Dec 27, 2003 at 3:23 PM" itemprop="datePublished">Dec 27, 2003</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55099" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/55099/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-55099" rel="nofollow"> #4 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/fant.2182/"> <meta itemprop="url" content="https://www.edaboard.com/members/fant.2182/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/fant.2182/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="2182" data-xf-init="member-tooltip" style="background-color: #6629a3; color: #bf99e6"> <span class="avatar-u2182-m" role="img" aria-label="FANT">F</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/fant.2182/" class="username " dir="auto" data-user-id="2182" data-xf-init="member-tooltip"><span itemprop="name">FANT</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Advanced Member level 1</h5> </div> <img src="/styles/images/ranks/glevel1.gif" alt="Advanced Member level 1"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Feb 27, 2002</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>418</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>52</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/fant.2182" class="fauxBlockLink-linkRow u-concealed">104</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>37</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,308</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Italy" rel="nofollow noreferrer" target="_blank" class="u-concealed">Italy</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 3,689 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-55099" data-lb-caption-desc="FANT · Dec 27, 2003 at 3:23 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><b>Re: limiting if amplifier</b><br /> <br /> If I have understood well, you are speaking about the limiting amplifier before the quadrature detector.<br /> The limiting effect is necessary to give to the quadrature detector a signal with constant amplitude at any input signal level, i.e. close the transmitting antenna or far away.<br /> If you don't give a constant amplitude to the detector, you will detect also the AM components, that usually are unwanted.<br /> The limiting effect don't affect the signal because it is FM modulated, so changes only the frequency and not the level.<br /> The DC balancing is necessary to allow all the 6 stages to work in the linear region, otherwise the last stages will be saturated on one side or the other by the existing offset of the differential amplifiers ( single stage)<br /> Let's suppose the first stage has 10 mV offset, and all the stages amplify 4 ( say 12 dB ).<br /> At the input of the second stage yopu will have 40 mV offset, at the third stage 160 mV and so on.<br /> You will see that after the 4-5 stage the amplifiers will be saturated.<br /> <br /> Hope to have solved your problems.<br /> <br /> Mandi</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="mike_bihan" data-content="post-56276" id="js-post-56276" itemscope itemtype="https://schema.org/Comment" itemid="https://www.edaboard.com/posts/56276/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/" /> <span class="u-anchorTarget" id="post-56276"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-56276" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2004-01-05T12:14:00+0000" data-time="1073304840" data-date-string="Jan 5, 2004" data-time-string="12:14 PM" title="Jan 5, 2004 at 12:14 PM" itemprop="datePublished">Jan 5, 2004</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-56276" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/56276/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/post-56276" rel="nofollow"> #5 </a> </li> </ul> </header> </div> <div class="message-inner"> <div 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class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-56276" data-lb-caption-desc="mike_bihan · Jan 5, 2004 at 12:14 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">do not forget the self-biasing effect of the DC feedback path. Also refer to DC offset-compensation with negative DC feedback.<br /> <br /> The feedback path was often implement by R-C-R filter.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> </div> </div> <div class="block-outer block-outer--after"> <dl class="blockStatus"> <dt>Status</dt> <dd class="blockStatus-message blockStatus-message--locked"> Not open for further replies. </dd> </dl> </div> </div> <div class="inContentAd"><div id='div-gpt-eda_thread1'> <script> 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Are you sure you want to submit this form?", attach: "Attach files", rich_text_box: "Rich text box", close: "Close", link_copied_to_clipboard: "Link copied to clipboard.", text_copied_to_clipboard: "Text copied to clipboard.", loading: "Loading…", you_have_exceeded_maximum_number_of_selectable_items: "You have exceeded the maximum number of selectable items.", processing: "Processing", 'processing...': "Processing…", showing_x_of_y_items: "Showing {count} of {total} items", showing_all_items: "Showing all items", no_items_to_display: "No items to display", number_button_up: "Increase", number_button_down: "Decrease", push_enable_notification_title: "Push notifications enabled successfully at Forum for Electronics", push_enable_notification_body: "Thank you for enabling push notifications!", pull_down_to_refresh: "Pull down to refresh", release_to_refresh: "Release to refresh", refreshing: "Refreshing…" , "svStandardLib_time.day": "{count} day", "svStandardLib_time.days": "{count} days", "svStandardLib_time.hour": "{count} hour", "svStandardLib_time.hours": "{count} hours", "svStandardLib_time.minute": "{count} minutes", "svStandardLib_time.minutes": "{count} minutes", "svStandardLib_time.month": "{count} month", "svStandardLib_time.months": "{count} months", "svStandardLib_time.second": "{count} second", "svStandardLib_time.seconds": "{count} seconds", "svStandardLib_time.week": "time.week", "svStandardLib_time.weeks": "{count} weeks", "svStandardLib_time.year": "{count} year", "svStandardLib_time.years": "{count} years" }); </script> <form style="display:none" hidden="hidden"> <input type="text" name="_xfClientLoadTime" value="" id="_xfClientLoadTime" title="_xfClientLoadTime" tabindex="-1" /> </form> <!-- XenBase Version: 2.1.5 --> <script type="application/ld+json"> { "@context": "https://schema.org", "@type": "WebPage", "url": "https://www.edaboard.com/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/", "mainEntity": { "@type": "DiscussionForumPosting", "@id": "https://www.edaboard.com/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/", "headline": "The limiting amplifier before the quadrature detector", "datePublished": "2003-12-27T04:31:04+00:00", "url": "https://www.edaboard.com/threads/the-limiting-amplifier-before-the-quadrature-detector.13636/", "articleSection": "Analog Circuit Design", "author": { "@type": "Person", "@id": "https://www.edaboard.com/members/hr-praveenraj.12391/", "name": "hr.praveenraj", "url": "https://www.edaboard.com/members/hr-praveenraj.12391/" }, "interactionStatistic": [ { "@type": "InteractionCounter", "interactionType": "https://schema.org/ViewAction", "userInteractionCount": 3834 }, { "@type": "InteractionCounter", "interactionType": "https://schema.org/CommentAction", "userInteractionCount": 4 }, { "@type": "InteractionCounter", "interactionType": "https://schema.org/LikeAction", "userInteractionCount": 0 } ], "articleBody": "limiting if amplifier\n\nin reciever ckt,after mixer limiting amplifier haveing 92db of gain,no. of stages of amplifier in limiting amplifier is 6 stages.i/p to amplifier is 50mpp\nthen from this data we will get o/p arround 1.5kv.\nfrom this data we have to get o/p arround 800mpp.\nonething we have to note o/p is feed back to i/p, he is mentioning that for \ndc cancellation & for dc biasing.get me the answer." }, "publisher": { "@type": "Organization", "name": "Forum for Electronics", "description": "International Electronics Discussion Forum: EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals", "url": "https://www.edaboard.com" } } </script> <script> $(function(){ var notice = $('.xb-welcome-notice'); if(notice.length){ var cookie = XF.Cookie.get('hide_welcome_notice'); if(!cookie){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else if ((Date.now() - cookie) > 8.64e+7){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else { notice.hide(); } } }); </script> </div> </body> </html>