Hallo boys, this is my first poste here. I decided to built some small and powerfull amplifier. I found TAS5630 chip from Texas Instruments and here is result of my half-year work. Design of PCB is my own, 50% copied from datasheet of TI evaluation board. The amplifier have good sound and good power potential. After some time i will upload some measurments.
Attachments
man, that is impressive, good job!! what i'm worried about is mounting the heatsink, what is holding it in place?
Thanks, i placed TAS5630 on botom of board because it was easier, i think. Heatsink is fixed by 4 screws, between chip and heatsink is thermal paste. Here is small gallery from measuring.
1. Sine, 1kHz, load 4ohm
2. Zoomed sine 1kHz
3. Clipping sine, 1kHz
4. Triangle 1kHz
5. Square is bad, because it somes from soundcard
1. Sine, 1kHz, load 4ohm
2. Zoomed sine 1kHz
3. Clipping sine, 1kHz
4. Triangle 1kHz
5. Square is bad, because it somes from soundcard
oh see the two screws now, after you mentioned it
hmm, what's with the square wave, look out of shape
is that signal on output or switching before inductor?
If it really is the first one, show the switching before inductor
hmm, what's with the square wave, look out of shape
is that signal on output or switching before inductor?
If it really is the first one, show the switching before inductor
square wave is distorted also on input of amplifier, because i produce square wave signal from sound card in PC. amplifier only copy the input. i dont have some usable wave generator at home. i have to go to the school and measure amp. with better tools.
one question for you.... can i add you as a friend? we can change out skills with class D
one question for you.... can i add you as a friend? we can change out skills with class D
yea, I understand how that can be, you need right tools for the job
I myself will try someday to make pcb for similar IC as yours is, the TAS5261, since I have digital DSP from texas also, and this one has PWM inputs
nice. i have similar plans, i want do some audio devices with TI chips. and what about DSP processing? is it very difficult to do? i am only 19 old and i dont have skills to to with DPS i think.
Right, i'm also on your level pretty much 😛
that is why I got myself low cost version of tas3308, 100€ give or take
you connect it to PC via usb, and you have purepath studio in which you program all DSP functions graphicaly! And I must say, I love the thing, even better then the expensive DSP I had in car
well you can look at
PurePath? Studio for portable audio - YouTube
and much more here
purepath studio - YouTube
anyway, what I like is, when you are "live", when connected to PC, everything is real time, so you hear the changes, you hear the filter you are changing
PurePath? Studio for portable audio - YouTube
and much more here
purepath studio - YouTube
anyway, what I like is, when you are "live", when connected to PC, everything is real time, so you hear the changes, you hear the filter you are changing
it is great, but i think that little bit more difficult to me. maybe after ome time i will do somethink with it. where you got your DPS board?
you could order it from US, but I got it from Farnell.com, I have accout there already
well I had to spent some time with the program to, but now its pretty easy, you really only need "start sheet" or how I would call it, just few config blocks in workspace, then you just add yours and download it to DSP and it's that easy
well I had to spent some time with the program to, but now its pretty easy, you really only need "start sheet" or how I would call it, just few config blocks in workspace, then you just add yours and download it to DSP and it's that easy
Good job! What is the peak-to-peak level of the clipping sine? Can you make a zoom of it or measure it with a faster timebase? I would like to see the ring at the top.
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