Hello .
I know that the tda1543 chip is stereo, but I'm interested if someone has tried to make a construction in which only one is used for one channel (in NOS mode) and the other for another channel (also in NOS mode) . If so, what conclusion did he reach? Are there data that have been measured?
in theory, the stereo separation should be better. And if there were several linked in parallel keeping the same construction, what results would be reached? I recently bought a Lite DAC-AH that works NOS and has 8 tda1543 chips connected in parallel. That's how I read, I'm not an electronics expert.
I know that the tda1543 chip is stereo, but I'm interested if someone has tried to make a construction in which only one is used for one channel (in NOS mode) and the other for another channel (also in NOS mode) . If so, what conclusion did he reach? Are there data that have been measured?
in theory, the stereo separation should be better. And if there were several linked in parallel keeping the same construction, what results would be reached? I recently bought a Lite DAC-AH that works NOS and has 8 tda1543 chips connected in parallel. That's how I read, I'm not an electronics expert.
I've done this with TDA1387, a close relative of TDA1543. If I understand your description correctly, you're talking about running one chip for L and another chip for R? I found it sounds better but this is purely a subjective finding. I doubt its down to stereo separation, rather better rejection of power supply noise through feeding the DAC's output into a differential receiver.
Yes , and thank you for your answer,
What if you combined the sound from a NOS chip with one that does upsamples? In the same way that a prism in a 3LCD projector combines the three colours R, G, B to form the final colour.
I have thought about combining DAC chips to give the benefits of the strengths of each while covering their weaknesses. How I envisaged combining them is through a 'reverse crossover' - then each DAC would be responsible for a part of the whole frequency range. I haven't built any prototypes with this idea yet but have been thinking about doing a similar thing with amp chips.
There's a difficulty in combining a NOS DAC chip with an oversampled DAC chip in that the latter will have time delay due to the OS filter and so the NOS chip will need a delay line (lots of shift registers) before it to match up the delays. I don't like the idea of so many 74HC164s much.
There's a difficulty in combining a NOS DAC chip with an oversampled DAC chip in that the latter will have time delay due to the OS filter and so the NOS chip will need a delay line (lots of shift registers) before it to match up the delays. I don't like the idea of so many 74HC164s much.
