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Old 3rd September 2009, 03:31 PM   #1
pra3718 is offline pra3718  India
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Default Require advise on tda2050 this schematic

Which is the good schematic attached schematic or datasheet.
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Old 4th September 2009, 09:11 AM   #2
Dxvideo is offline Dxvideo  Turkey
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I think you will need the following modifications to increase this amps sound performace;
- Ommit the 0.1u, 10K, 10K and 2.2u on NFB circuit..
- Increase the C2 value (47 or 100u-bipolar!) to increase the bass response..
- Add a 680R resistor after C1 in series, to protect amplifiers LTP base..
- Increase C1 value (4u7 MKP, not elko)
And a final word, if you dont have TDA2050 currently then use LM1875 instead of it..
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Old 4th September 2009, 12:53 PM   #3
pra3718 is offline pra3718  India
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Thank you,

Infact the basic amp I can build now. I am looking for some best sound like WARM, CLEAR TONE, SONIC etc.,

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Old 4th September 2009, 01:32 PM   #4
pra3718 is offline pra3718  India
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@Dxvideo, I was trying to boost bass & treble without adding active/passive crossover.
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Old 4th September 2009, 01:42 PM   #5
Dxvideo is offline Dxvideo  Turkey
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Then youre on the right way... So keep the feedback components anyway.
However my advices about bass improvement (about C1 and C2 values) are still valid..
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Old 22nd March 2012, 05:36 PM   #6
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what speakers can we use for tda2050
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Old 22nd March 2012, 06:04 PM   #7
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Quote:
Originally Posted by Dxvideo View Post
I think you will need the following modifications to increase this amps sound performace;
- Ommit the 0.1u, 10K, 10K and 2.2u on NFB circuit..
- Increase the C2 value (47 or 100u-bipolar!) to increase the bass response..
- Add a 680R resistor after C1 in series, to protect amplifiers LTP base..
- Increase C1 value (4u7 MKP, not elko)
And a final word, if you dont have TDA2050 currently then use LM1875 instead of it..
I make several amplifiers like this, but with TDA2006 split supply. I added a coil of about 50 microhenry in parallel with 4.7R between IC output and zobel network and speaker to prevent high frequency oscillation in case of long wires to speaker. The set is working fine since 1995 to this date.
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Old 22nd March 2012, 06:37 PM   #8
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what speakers can i use for tda2050
watts-
size-
impdence-
plz help me
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Old 22nd March 2012, 06:46 PM   #9
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Quote:
Originally Posted by shravanth View Post
what speakers can i use for tda2050
watts-
size-
impdence-
plz help me
Impedance= 4r or more
Power: depends on power supply (Psp > VCC *VCC / RL)
Size: depends on your personal taste.

Good luck.
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Old 23rd March 2012, 03:48 AM   #10
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TDA2050 is a decent powerful chip, it can easily drive 3-8 ohm speakers at 30 Watts average.
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