Xtra Louder XL. RC to DCC Project
Автор: Nothingtoseehere
Загружено: 2023-07-28
Просмотров: 4
Описание:
You are probably getting the gist by now. XL's surprisingly good, and cheap, diesel sound decoder attached to a bigger amplifier. This time, a TI TPA3118 based 12V, and up to (...) 60W, one. It gives a much more appreciable volume boost than the PAM8403, but this more readily exposes the lack of low frequency characteristics in both the underlying audio signal and the speaker used for testing. The audio signal is tapped from the input (pin 3) of the decoder's onboard LM386 amp. These amp modules are a bit on the larger side (46x35mm) but not unduly so, and they work out to be around $4 each.
A third amp, based on the PAM8610, will be tested once the modules arrive.
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