DIY Micro USB-C to 3.5mm Adapter and Headphone Amplifier (Part 4)

DIY Micro Headphone Amplifier with ALC 4042 USB DAC and INA1620 IC front

This is going to be the last part of DIY USB-C adapter and micro amplifier post series. Today, I will show, how the amplifier was fully assembled to a fully finished device. Table of contents Previous parts for this topic Device’s construction The ALC4042 USB-C DAC The INA1620 amplifier board Whole assembly and final thoughts … Read more

DIY signal generator – battery charging circuit with BQ24295 (part 6)

Battery charger BQ24295 front pcb for a diy generator

Yet another step towards DIY signal generator’s design finish line. This time it is a battery charging circuit based on a Texas Instruments BQ24295 chip. In previous parts I have mentioned that the generator needs to be powered from a battery. So, this circuit is going to be the one responsible for making it possible. … Read more