Hello
Possible you can tell me which parts I should go for
it will be used for HTPC 6 channel
Maybe around the TDA7294
Please refer to PCB layout
and component list
Many thanks
Possible you can tell me which parts I should go for
it will be used for HTPC 6 channel
Maybe around the TDA7294
Please refer to PCB layout
and component list
Many thanks
here are Schematic and PCB for TDA7294. hope these will help you.😛
Actually that PCB is for the TDA7293 which is very close to the TDA7294 but not exactly , the TDA7293 is about the same price as the 7294 but marginally better .....
Well the TDA7293/7294 are Mosfet chip amps where the LM3886 are BJT , I find the LM3886 to be a more clean and clinical sound were there TDA7293 is more musical , also the LM3886 sounds awefull when it clips but the TDA7293 sounds not so bad when it clips ...... the TDA chips also have a bit more output power ....
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Hi MINION,
I studied the datasheet of TDA7293 and 94. I didnt find any difference in CHIPs inside circuit and also in external component circuit. Difference found only in output power and supply voltage rating. Did you find any other differences?
I studied the datasheet of TDA7293 and 94. I didnt find any difference in CHIPs inside circuit and also in external component circuit. Difference found only in output power and supply voltage rating. Did you find any other differences?
There is another interesting difference - the ability to parallel 7293s without needing any sharing resistors. They have a master/slave facility. So higher powers are eminently feasible.
how much difference is there really
in all pcb I find on the Internet?
Why don't you build it on a pref board instead it is easier and you wull get to do some real DIYing 🙂 instead of trying to make from a PCB done by someone else.Try it it's so much fun on a pref board.

as much as my knowledge is concerned, there is not a big difference in PCBs. someone made it simple to draw, some nice looking with component, some are made with proper grammer. But you should be check PCB diagram carefully with the schematic you are going to make before making PCB from a layout.how much difference is there really
in all pcb I find on the Internet?
I support your comment but not fully. I dont like pref. board really. Because of lack of time I start finding PCB drawings on the net, if I dont find the same or dont like the drawing I make my won design. Pref. boards are good for tesing new easy projects. Not for final, even DIY projects. I think you will also support this.Why don't you build it on a pref board instead it is easier and you wull get to do some real DIYing 🙂 instead of trying to make from a PCB done by someone else.Try it it's so much fun on a pref board.![]()
true true *2, for the enthusiast best is a PCB but for testing sure a pref board will do.I just find it easier to use pref board more often than PCB for obvious reasons - work involved hehe. 😀I support your comment but not fully. I dont like pref. board really. Because of lack of time I start finding PCB drawings on the net, if I dont find the same or dont like the drawing I make my won design. Pref. boards are good for tesing new easy projects. Not for final, even DIY projects. I think you will also support this.
hello
The easiest thing for me will be a full description
I am first time diy
possibly as this
http://www.quasarelectronics.com/kit-files/electronic-kit/3106.pdf
The easiest thing for me will be a full description
I am first time diy
possibly as this
http://www.quasarelectronics.com/kit-files/electronic-kit/3106.pdf
The easiest thing for me will be a full description
I couldnt get your point, can you make it clear exactly what kind of problem you have or what informations you need.😉
I couldnt get your point, can you make it clear exactly what kind of problem you have or what informations you need.😉
what I'm looking for
A complete description
to create a complete chip amp with power supply / speaker protection / chip amp with circuit diagram / PCB layout
I know it is very much to ask for
I know this one works fine for the TDA7293/94 cuz I"m the one who redid the PCB layout in MS paint and posted it on the Net ... I"m useing this exact PCB in my Guitar amp right now (Pluss a Tube pre and a 15 band EQ) .....
http://www.diyaudio.com/forums/atta...ould-go-chip-amp-tda7293-layout-pcb-parts.jpg
The TDA7293 PCB will work for the TDA7294 , you just dont connect the Positive rail to the Clip detector pin ... A TDA7294 PCB would not work with a TDA7293 because it has no provisions for the Clip detector pin though one could be P2P wired to the Pin .....
As for a power supply anyone can design a basic PSU , Just a Bridge rectifier and a 2 big Caps , One from Positive to ground and one from negitive to ground , making sure to place the Caps with the correct polarity , that is a basic unregulated PSU for a Power amp , a Snubber would also be a good idea but is optional ......
The most commonly used speaker protection IC is probably the UPC1237 , it is fairly easy to implement and the Datasheet has a circuit diagram ......
I bought a PCB on Ebay about 2 years ago for about $8 that had the PSU , stereo TDA7293/94 with Speaker protection and it worked pretty good so that is another option ....
CHeers
http://www.diyaudio.com/forums/atta...ould-go-chip-amp-tda7293-layout-pcb-parts.jpg
The TDA7293 PCB will work for the TDA7294 , you just dont connect the Positive rail to the Clip detector pin ... A TDA7294 PCB would not work with a TDA7293 because it has no provisions for the Clip detector pin though one could be P2P wired to the Pin .....
As for a power supply anyone can design a basic PSU , Just a Bridge rectifier and a 2 big Caps , One from Positive to ground and one from negitive to ground , making sure to place the Caps with the correct polarity , that is a basic unregulated PSU for a Power amp , a Snubber would also be a good idea but is optional ......
The most commonly used speaker protection IC is probably the UPC1237 , it is fairly easy to implement and the Datasheet has a circuit diagram ......
I bought a PCB on Ebay about 2 years ago for about $8 that had the PSU , stereo TDA7293/94 with Speaker protection and it worked pretty good so that is another option ....
CHeers
Minion guided you a lot. I feel two more things I should say.
1. Use +-35 or +-38V DC powersupply.
2. 3 to 4 Amps per rail. for mono operation 2 Amps may be sufficient.
3. 10,000 mfd Cap per rail.
another project on TDA7294 I got in my archive. That is attached with in ZIP format.
the picture attached is my project with LM4766T, LM1036N.
1. Use +-35 or +-38V DC powersupply.
2. 3 to 4 Amps per rail. for mono operation 2 Amps may be sufficient.
3. 10,000 mfd Cap per rail.
another project on TDA7294 I got in my archive. That is attached with in ZIP format.
the picture attached is my project with LM4766T, LM1036N.
Attachments
Thank very much
this must be what I need
look at it later
my wife says I spend much time on nothing

this must be what I need
look at it later
my wife says I spend much time on nothing


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