Roland D-50 / D-20 converters

Posted: March 26, 2015 in Audio
Tags: , , , , ,

From these service manuals (here for the D-50 and there for D-20) we learn that both Roland synths use Burr-Brown PCM54 D/A converter. However the D-50 added a 4 bits chip to convert the lower 4 bits from 20 bits signal (better headroom for internal processing and better dynamic for output).

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