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UPD6376

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The UPD6376 is a 16-bit stereo digital-to-analog converter. It is labeled "D/A CONV" in the block diagram in the official Nintendo documentation. [1] Pins 6 (right channel output) and 11 (left channel output) are connected to the Pre-Amplifier.

Stereo DAC in region C4 of the jwdonal schematic

References

[1] Figure 2-22-1, "Super NES Functional Block Diagram" on page 2-22-2 of Book I: https://archive.org/details/SNESDevManual/book1/page/n98
https://datasheetspdf.com/pdf-file/369047/NEC/UPD6376/1

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