lm3886 tda7293 tda1514

[rehanabid]

I ve mailed u the PDF file hope u find time to make a PCB of the same, coz I am very very very very very busy these days and can't make the PCB, If u however do make the PCB plz don't forget to mail it to me.

 

[tiefbassuebertr]

LM3875/LM3886 vs. TDA7293 (TDA7293V) or TDA7294 (BjT vs NMOS output)

Who can tell me details between the audible differences in sound character?

actually the main sound differences arises through the different kind of the output power devices and their topology. Both designs are not so called "true complementary" design. The LM uses a quasi complementary design (Super ß like Quad 303) with BjT's and the TDA 7293/7294 a totem pole topology wich only N-Channel MOSFETs similar to the discrete topology from the developement of diyaudio member "X-PRO" - go to
http://www.ant-audio.co.uk/Theory/N-channel D-MOSFET output stage with improved linearity.pdf
and
http://www.diyaudio.com/forums/soli...50-mk2-circuit-descr-arround-q12a-wanted.html

Thank you for your comments.

Here the PDF links for the IC data sheets:
http://www.national.com/ds/LM/LM3875.pdf
http://www.national.com/ds/LM/LM3886.pdf
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00001887.pdf
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00000017.pdf
http://www.st.com/internet/com/SALE...MMUNICATION/MARKETING_BROCHURE/brhomesyst.pdf
http://www.st.com/internet/com/SALE...MMUNICATION/MARKETING_BROCHURE/brhomesyst.pdf

 

[tiefbassuebertr]

Who can tell me details between the audible differences in sound character?

actually the main sound differences arises through the different kind of the output power devices and their topology. Both designs are not so called "true complementary" design. The LM uses a quasi complementary design (Super ß like Quad 303) with BjT's and the TDA 7293/7294 a totem pole topology wich only N-Channel MOSFETs similar to the discrete topology from the developement of diyaudio member "X-PRO" - go to
http://www.ant-audio.co.uk/Theory/N-channel D-MOSFET output stage with improved linearity.pdf
and
http://www.diyaudio.com/forums/soli...50-mk2-circuit-descr-arround-q12a-wanted.html

Thank you for your comments.

Here the PDF links for the IC data sheets:
http://www.national.com/ds/LM/LM3875.pdf
http://www.national.com/ds/LM/LM3886.pdf
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check out post 481 under
http://www.diyaudio.com/forums/chip-amps/226437-optimizing-tda7294-output-49.html