{"id":10569,"date":"2025-04-07T12:57:00","date_gmt":"2025-04-07T02:57:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2025\/04\/07\/asianometry-on-mosfets-mesfets-cmos-and-moore\/"},"modified":"2025-07-22T12:36:18","modified_gmt":"2025-07-22T02:36:18","slug":"asianometry-on-mosfets-mesfets-cmos-and-moore","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2025\/04\/07\/asianometry-on-mosfets-mesfets-cmos-and-moore\/","title":{"rendered":"Asianometry on MOSFETs, MESFETS, CMOS and Moore"},"content":{"rendered":"<p><iframe loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\" frameborder=\"0\" height=\"247\" referrerpolicy=\"strict-origin-when-cross-origin\" src=\"https:\/\/www.youtube.com\/embed\/b2g23mWskmw?si=mFQEbfcV9OEztaBN?rel=0\" title=\"YouTube video player\" width=\"440\"><\/iframe><\/p>\n<div><\/div>\n<div><b>Asianometry does a pretty good job here. I am sure people will quibble about some of his descriptions of radio, AF, and RF. But overall, pretty good. I did see what looked like a direct conversion receiver in his block diagrams, but it was described as a superhet.<\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>I was also struck by what looked like the lack of shielding in the modern cell phones. Some hams seem to believe that we cannot live without shielding. But apparently we can. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>I also like how the bloc diagrams have the LO feeding mixers both on the receiver side and on the transmit side. I realize that you can do this by switching the LO, but I like to feed both mixers at the same time. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>Asianometry talks about the need for inductors in the chips, and how this was often a show-stopper. This made me think about the Gilbert Cell that we find in our beloved NE-602s. Wasn&#8217;t Barry Gilbert trying to create a balanced mixer that would not need coils? <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>Finally, there is a nice review of the history of Silicon Labs. I was hoping to see the Si570 and, of course, the Si5351. But no, these seem to have come later than the slide used by Asianometry. <\/b><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Asianometry does a pretty good job here. I am sure people will quibble about some of his descriptions of radio, AF, and RF. But overall, pretty good. I did see what looked like a direct conversion receiver in his block diagrams, but it was described as a superhet. I was also struck by what looked &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2025\/04\/07\/asianometry-on-mosfets-mesfets-cmos-and-moore\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Asianometry on MOSFETs, MESFETS, CMOS and Moore&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[172,334,57],"tags":[],"class_list":["post-10569","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits","category-mixers","category-superhet-receivers"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/10569","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=10569"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/10569\/revisions"}],"predecessor-version":[{"id":11102,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/10569\/revisions\/11102"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=10569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=10569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=10569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}