Ok, it think the best way is just to try it. I've nothing to loose. If it doesn't work proberbly with the SPDIF Receiver I still can hack some mechanics to the circuit. But I've one last question: If the SPDIF Receiver have TTL/CMOS inputs how much is the maximum input voltage? Because if the chips are running with 3,3V the maximum i/o voltage normaly is always 3,3V unless otherwise specified. Is 5 volt also ok there? Cause the TORX173 receiver will give a 5 volt signal.
Do you have a schematic of your decoder which I could have a look at?
I'm now finishing my schematic and then I have to start routing. I also have the STA3103 from Texas Instruments on the board to make some equalisation and volume control, etc. after I have the decoded signals. Then I have DAC's on the outputs which will be connected to my amplifier. we will see...
Do you have a schematic of your decoder which I could have a look at?
I'm now finishing my schematic and then I have to start routing. I also have the STA3103 from Texas Instruments on the board to make some equalisation and volume control, etc. after I have the decoded signals. Then I have DAC's on the outputs which will be connected to my amplifier. we will see...
I think that 5V level is not problem, but if you afraid you can use 74LVC or 74LVX series +3,3V powered to convert level.
I have TAS3103 too ( STA3103???), but I'm still to busy. I've more expirence with Texas TAS3004 and very nice Philips UDA1355 codec.
I have TAS3103 too ( STA3103???), but I'm still to busy. I've more expirence with Texas TAS3004 and very nice Philips UDA1355 codec.
Yes, TAS3103 was what I meant: http://focus.ti.com/docs/prod/folders/print/tas3103.html
Well, I'm also too busy, but once my project has a better status I can tell more how it is working.
By the way, I'm new to the diyAudio forum, but I really like it. Seems to be a good place to share ideas. Hi to everyone again !!
Stay tuned
Holger
Well, I'm also too busy, but once my project has a better status I can tell more how it is working.
By the way, I'm new to the diyAudio forum, but I really like it. Seems to be a good place to share ideas. Hi to everyone again !!
Stay tuned
Holger
> tallica
Witam. Nie dość, że Polak, to jeszcze także z Lublina. Pozdrawiam serdecznie. No i mam takei małę pytanko. Skąd w ogóle można wziąźć tego scalak? Mam na myśli STA013...
Witam. Nie dość, że Polak, to jeszcze także z Lublina. Pozdrawiam serdecznie. No i mam takei małę pytanko. Skąd w ogóle można wziąźć tego scalak? Mam na myśli STA013...
my decoder is ready 🙂. It workinng with 6 channel power amplifier.
Decoder module contain:
1. power section: +5VD (DAC), +3,3VD (STA310), +2,5VD (STA310), +2,5VA (S/PDIF section STA310), +5VA (DAC) and +/-9V for low-pass DAC filter
2. STA310 section with 25MHz system clock module
3. controller PIC18F6722
4. 8channel DAC PCM1680
5. 6channel low-pass filter (3xOPA2604)
Power amplifier based on two LM4782. It's 6x20Watt amplifier.
Decoder can decode (PIC software configuration)
1. Dolby Digital stream
2. DTS steram
3. PCM (Compact Disc)
Decoder module contain:
1. power section: +5VD (DAC), +3,3VD (STA310), +2,5VD (STA310), +2,5VA (S/PDIF section STA310), +5VA (DAC) and +/-9V for low-pass DAC filter
2. STA310 section with 25MHz system clock module
3. controller PIC18F6722
4. 8channel DAC PCM1680
5. 6channel low-pass filter (3xOPA2604)
Power amplifier based on two LM4782. It's 6x20Watt amplifier.
Decoder can decode (PIC software configuration)
1. Dolby Digital stream
2. DTS steram
3. PCM (Compact Disc)
Attachments
Hey Tomek!
That is really, really neat!! I ended up buying a DVD player that had discrete DTS and Dolby out, but would've much preferred taking your route. I lost interest in the idea after I couldn't even find an STA310, let alone buy it! That is truly impressive.
Would you care to post some schematics of what you have done?
Gert
That is really, really neat!! I ended up buying a DVD player that had discrete DTS and Dolby out, but would've much preferred taking your route. I lost interest in the idea after I couldn't even find an STA310, let alone buy it! That is truly impressive.
Would you care to post some schematics of what you have done?
Gert
hey really great!!!!
looks impressive. My current status on the project is that I'm more or less finished with the schematic, but I'm studying electrcical engineering in parrallel to my normal work and right now I've some hard exams, so the project is still in the queue....
I've the same question. Do you think you can send me the schematics?
Would be great than I could compare if I've done some stupid mistakes on mine. 😉
Thanks
Holger
looks impressive. My current status on the project is that I'm more or less finished with the schematic, but I'm studying electrcical engineering in parrallel to my normal work and right now I've some hard exams, so the project is still in the queue....
I've the same question. Do you think you can send me the schematics?
Would be great than I could compare if I've done some stupid mistakes on mine. 😉
Thanks
Holger
Tomek_j,
I'm very impressed with your design, probably first of it's kind built DIY. I'm sure we all would love schematics, board layouts, and pic software to try it out ourselves. 😛
Jonathan
I'm very impressed with your design, probably first of it's kind built DIY. I'm sure we all would love schematics, board layouts, and pic software to try it out ourselves. 😛
Jonathan
Very interesting. I just got few samples of the STA310 chip. I think I have to start studing the STA310 datasheet when I have time.
It would be nice to see some schematics etc.
It would be nice to see some schematics etc.
Hi McGuyver, where did you get the samples from? I'm even prepared to BUY some if I could only get some!!
Tomek_j:
Have you measured cut off frequency of the ST310 filter, when all speakers are set to "small"?
I couldn't see that in the datasheet.
Have you measured cut off frequency of the ST310 filter, when all speakers are set to "small"?
I couldn't see that in the datasheet.
OK, I tried again to have a look at the ST website to see if I can't get samples, but it appears that these aren't part of the sample program. Anybody have one or to they wanna sell?? PLEASE!
Tomek_j said:
I mean this on the page 61 (and on the page 26, figure 14):
http://www.st.com/stonline/products/literature/ds/9622.pdf
There is only mentioned "low frequencies".