What is a good clock oscillator and what is a good clock oscillator for audio? How to recognize one? Is jitter bad? What about rubidium time standards? Couple things needs to be addressed here…

What is hiding behind these magic acronyms? How does it work in most simple terms? Let’s try to sort it out together and see what problems we can face along the way…

In the first part we took a look at the theoretical principals of DEM operation and alternative approach of lowering DEM frequency was suggested that will be the topic of this second part.

I/V conversion is one of the most important part of any Current Output DAC. Here is the evaluation of possible circuits for TDA1541.

TDA154X series DAC’s uses current steering logic for their digital inputs. This type of digital input needs a special attenuation circuit…

What is the optimal I/V resistor value for TDA1540, TDA1541, TDA1541A DAC chips? How this influences distortion profile? Read and find out…

Last couple of months I had a deep dive into a wonderful world of mixed signal electronics. And now I know how deep the rabbit hole goes! I went through all this trouble to finally upgrade my main audio measurement device – ESI Juli@ sound card. I bought it somewhere around 2008…

Listening to a mythical TDA1540 was a long dream of mine. CD350 was the one that finally made it a reality and so another adventure started…

Here is another story of my audio adventures. This time it’s about Phillips CD304 MKII player that gets a reboot by meeting some vacuum tubes.