<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Retro-Modern on Dhiru's Notebook</title><link>https://rfcorner.in/tags/retro-modern/</link><description>Recent content in Retro-Modern on Dhiru's Notebook</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Fri, 11 Apr 2025 00:00:00 +0000</lastBuildDate><atom:link href="https://rfcorner.in/tags/retro-modern/index.xml" rel="self" type="application/rss+xml"/><item><title>Reimagining the 'Tangara' Music Player - Part 2</title><link>https://rfcorner.in/posts/rethinking-tangara-music-player-part-2/</link><pubDate>Fri, 11 Apr 2025 00:00:00 +0000</pubDate><guid>https://rfcorner.in/posts/rethinking-tangara-music-player-part-2/</guid><description>&lt;p&gt;&lt;a href="https://www.crowdsupply.com/cool-tech-zone/tangara"&gt;Tangara&lt;/a&gt; is an excellent
project!&lt;/p&gt;
&lt;p&gt;&lt;a href="https://rfcorner.in/posts/rethinking-tangara-music-player/"&gt;It recently inspired us&lt;/a&gt; to build a similar FOSS DAP product but at a much lower cost of &amp;lt;= 40 USD. Our initial tech stack: RP2350-Zero, PCM5102A 32-bit 384kHz DAC, Burr-Brown OPA1662 (specified for 3.3v) as the unity gain buffer and headphone driver, no explicit DC-DC converters anywhere, microSD card, everything will be a module if possible&lt;/p&gt;
&lt;p&gt;We quickly got this prototype working on a breadboard and discovered some limitations:&lt;/p&gt;</description></item><item><title>Reimagining the 'Tangara' Music Player</title><link>https://rfcorner.in/posts/rethinking-tangara-music-player/</link><pubDate>Sat, 15 Feb 2025 00:00:00 +0000</pubDate><guid>https://rfcorner.in/posts/rethinking-tangara-music-player/</guid><description>&lt;p&gt;&lt;a href="https://www.crowdsupply.com/cool-tech-zone/tangara"&gt;Tangara&lt;/a&gt; is an excellent
project. I found &lt;a href="https://halestrom.net/darksleep/blog/053_tangara/"&gt;this review of Tangara's design&lt;/a&gt; very interesting and educational.&lt;/p&gt;
&lt;p&gt;It has inspired us to build a similar FOSS DAP product but at a much lower cost of 40 USD (that being the launch price of Sansa Clip in year 2007). The idea is to deliver '90% of the value' of Tangara in a slightly smaller (but fatter) and more cost-effective package.&lt;/p&gt;
&lt;h2 id="design"&gt;Design&lt;/h2&gt;
&lt;p&gt;Initial tech stack: RP2350-Zero, PCM5102A 32-bit 384kHz DAC, Burr-Brown OPA1662 (specified for 3.3v) as the unity gain buffer and headphone driver, no explicit DC-DC converters anywhere, microSD card, everything will be a module if possible&lt;/p&gt;</description></item></channel></rss>