Reply to thread

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Message: <blockquote data-quote="fredeb" data-source="post: 1167728" data-attributes="member: 13623"><p><a href="https://www.dutchaudioclassics.nl/Philips-TDA1541/#tda1541-grading" target="_blank">https://www.dutchaudioclassics.nl/Philips-TDA1541/#tda1541-grading</a></p><p></p><p>"Finished TDA1541 ICs are graded by a computer-controlled test station into three classes:</p><h3>TDA1541A - no suffix</h3><p>The standard grade is guaranteed to have a DLE of less than 1 LSB from bit 1 to 16; this is used in Philips's own reasonably priced players.</p><p></p><h3>TDA1541A - R1</h3><p>R1 (R for "relaxed) is guaranteed only to have a differential linearity error (DLE) of less than 2 LSBs from bit 1 to bit 16. This grade will be used in inexpensive players and supplied to some third-party manufacturers.</p><p></p><p></p><h3>TDA1541A - S1</h3><p>A small proportion of DACs meet a more stringent performance standard, having a DLE of less than 0.5 LSB for bits 1-7, less than 1 LSB for bits 8-15, and less then 0.75 LSB for bit 16; these are termed the "S" grade and are stamped with a small crown. This top perfoming chip will be used in Philips's best CD players."</p></blockquote><p></p>