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Interesting! I've never used or ordered an QFN-packaged device before. Looking at the datasheet (chiphomer.com/pdf/en_cp2212.pdf), What should Ci be? (Inputs to gain adjust)
Are there amplifiers for .75 Watt speakers? I've googled and found amplifiers that provider >1 Watt of power. I don't mean to start a discussion about what amplifiers to choose. I just need the knowledge to know which amplifiers can drive it.