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6 watt Audio Amplifier Circuit Using TDA1011

Last Updated on May 5, 2022 by Swagatam 15 Comments

A very simple yet useful 6 watt audio amplifier circuit using IC TDA1011 is explained in the following article, which can be built by new hobbyist and used for amplifying music from different sources such as cellphones, FM radios, doorbell etc.

Table of Contents
  • TDA1011 comes with various features.
  • Technical Specifications
  • Heat Sink Design

By:Dhrubajyoti Biswas.

A monolithic integrated audio amplifier circuit TDA1011 is especially used for recording systems or portable radio. TDA1011 has the power to delivery up to 4W on an impedance of 4W load.

The device can also reach 6W on 4W where the supply would be 16V in those applications which are mains-fed.

The maximum permissible supply of TDA1011 is 24V. It is for this reason the device is well suited for AC and DC systems.

Also the low voltage supplies of 3V and 6V enables applications that run on 6V.

TDA1011 comes with various features.

They are:

a) SIL based which enables easy-mounting of the device;

b) power and preamplifier is separated;

c) output power is high;

d) has thermal protection;

e) input impedance is high;

f) current drainage is low;

g) generates less noise to radio frequencies.

 

6 watt Audio Amplifier Circuit Using TDA1011

Technical Specifications

Other electrical specifications for the proposed 6 watt amplifier circuit using TDA1011 are as follows:

  1. Peak output current  is as high as 3 amps
  2. Total Harmonic distortion is 1.5 watts
  3. Frequency Response is within 60Hz and 15kHz

Heat Sink Design

Just like any other amplifier IC, the TDA1011 too will require a heatsink in order to perform optimally at full load conditions, that is high volumes.
Let's assume the supply voltage to be 12V, then as per the standard calculation a hetasink of 39 K/w would be just enough for keeping the IC col and running faithfully regardless of the load conditions.

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Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Audio, TDA1011, Watt

About Swagatam

I am an electronics engineer and doing practical hands-on work from more than 15 years now. Building real circuits, testing them and also making PCB layouts by myself. I really love doing all these things like inventing something new, designing electronics and also helping other people like hobby guys who want to make their own cool circuits at home.

And that is the main reason why I started this website homemade-circuits.com, to share different types of circuit ideas..

If you are having any kind of doubt or question related to circuits then just write down your question in the comment box below, I am like always checking, so I guarantee I will reply you for sure!

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Reader Interactions

Comments

  1. Geovani says

    March 25, 2025 at 3:27 pm

    como posso colocar potenciômetros no circuito?

    Reply
    • Swagatam says

      March 25, 2025 at 4:57 pm

      Do you want to connect a volume control pot?

      Reply
  2. rahul says

    December 31, 2017 at 5:07 pm

    when signal cable open——–noise stiill there

    Reply
    • Swagatam says

      December 31, 2017 at 6:01 pm

      1) The volume control should be from the amplifier side and controlled from the amp side and not from the tone controller side… otherwise the noise issue will be always present
      2) use good quality SHIELDED wire from the tone controller to the amplifier, and make sure the shield of the shield wire is correctly grounded with the amp ground.
      3) unregulated power supply will work but it must a pure DC and within the specified limits of the circuit.

      Reply
      • rahul says

        December 31, 2017 at 6:40 pm

        picture———–https://ibb.co/bHm1pw

        ———–does this pic makes clear to you connections———–amp is grounded to amp transformer ————

        signal grounded to tone board transformer——–tried grounding too amp transformer—-no result———in the pic———–+-g is supplied by 12-0-12 v dc from unregulated supply using transformer-bridge-caps———

        input—–is given from pc out–input is grounded to gr of power—-output connected to amp input

        Reply
        • Swagatam says

          December 31, 2017 at 7:54 pm

          I hope you understood what I meant by shielded wire….in the image I can clearly see you have not used a shielded wire for music input. better do it if want to reduce noise pick up…

          + supply can come anywhere but the ground line must be connected in common for the DC stages.

          Reply
      • rahul says

        December 31, 2017 at 6:49 pm

        should i connect grounds off both amp, preamp transformer ?

        ——-actually amp trannsformer 22-0–22=44 v so i cannot use in preamp

        Reply
        • Swagatam says

          December 31, 2017 at 7:52 pm

          all grounds should be connected in common, that’s compulsory for any DC circuit work….

          Reply
  3. rahul says

    December 31, 2017 at 4:51 pm

    does it works on unregulated supply

    Reply
  4. rahul says

    December 31, 2017 at 4:49 pm

    my amp do not consist of vol knob——–pc out set to full vol——-i adjust vol by tone board

    Reply
  5. rahul says

    December 31, 2017 at 4:46 pm

    photo sort of this type–

    ———without regulator———-i have unregulated supply

    Reply
  6. rahul says

    December 31, 2017 at 4:38 pm

    also vol pot–47k, bass trble mid–100k

    Reply
  7. rahul says

    December 31, 2017 at 4:00 pm

    i have tda 2050 stereo made by me—working fine no noise——i buyed–readymade–tone control board bass,mid,treeb,vol–2 ic —–4558d—-pho

    power supply separate is for tone board—
    9-0-9 v ac after bridge rectify—-12-0-12 v dc power given to tone board—-in board written d c—-( + – gr)
    observations—-

    1——-when i connect tone board—sound ok but huge background noise also when pause song huge background noise —-noise decreases if vol turned down

    2———weird thing in tone board—vol increases if i turn anticlock direction, all other pots increase anticlock direction

    3——–when i turn off power to tone board with amp on no noise

    4—–in board power ground, input,output,vol pot same ground

    5—–in input of tone board 150 k ohm there—output 10k

    6————-tried star grouunding for amp,signal,tone—–noise there

    ——–what should i try to resolve issue ?

    ———–thank you

    Reply
    • Swagatam says

      December 31, 2017 at 4:33 pm

      How did you connect the tone board with the amp?….make sure either the tone board is directly attached with the amp volume or if it is through a cable make sure it is a shielded cable…and the shield of the cable appropriately grounded with the ground of the amp.

      to correct the volume orientation of the tone, just interchange the outer wires of its volume pot….

      Reply
      • rahul says

        December 31, 2017 at 4:43 pm

        in input of tone board i have given pc out right/left and ground—-in output of board connect to amp input right /left tda board and ground together

        Reply

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