TDA2003 Anfi devreleri

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Circuit of of power audio amplifier with tda2003 for 10 Watts potency

TDA 2003 has a better performance than the tda2002 using the same configuration of pins. Additional characteristics in relation to the tda 2002, it demands few components external, easy assembly, it is a low cost solution for an audio amplifier. A mounted amplifier with tda2003 presents protection against short of the pins with the earth. The good of setting up an amplifier with tda2003 is that he easy of being found at the market, even for who is far away from the great centers, has the possibility to do to buy him/it integrated by the internet. The tda2003 can be fed by batteries by a long period.

Description of the circuit of the amplifier of 10 watts simple source

It is treated of an assembly easy of being accomplished what is necessary it is just a tda2003 and one more half dozen of components.
To facilitate the assembly the circuit it counts with a circuit plate printed.
Schematic of the amplifier with tda2003

Suggestion of printed circuit board for assembly of the amplifier with tda2003. Real size.

PCI side of the components to guide in the assembly of the amplifier with tda2003.

lists of components for assembly of the amplifier

Resistors:

• R1:220 Ω
• R2: 2.2Ω
• R3: 1Ω 1 watt
• Rx: 39Ω See the datasheet paw to alter the value of Rx

Capacitors

• C1: 2.2µF 25V electrolitic
• C2:470µF 35V electrolitic
• C3:0.1µF polyester or ceramic
• C4:1000µF/35 V electrolitic
• C5: 100nF polyester or ceramic
• C6: 100µF 35v electrolitic
• Cx 39nF See the datasheet paw to alter the value of Cx

Semiconductors

• IC1: TDA2003

Reference: Tda7294 St microelectronics datasheet.
www.st.com

 

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TDA2003'LÜ 10W MONO AMFİ





TDA2003 ile yapılmış yapımı kolay bir amfidir, eleman değerleri şemada belirtilmiştir, Her ne kadar besleme gerilimi 18Volt yazsada tipik kullanımı 12 volttur. Tahmini beslemeden çektiği amper tam güçte 3,5Amper gibi bir güç çeker, bu yüzden uygun bir soğutucuya bağlamak lazım entegreyi.
RX = 39ohm
CX = 39nF
Hoparlör omajı ise 4-8 Ohm'dur

 

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TDA2003

 

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3W/6W audio amplifier using TDA2003

 

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STEREO TONE CONTROLLED 12V AMPLIFIER CIRCUIT WITH TDA2003
This audio amplifier circuit using the TDA2003 integrated circuit which has the same configuration and pinouts of the TDA2002. The interesting thing is that this integrated uses very few external components, assembly is very simple, low cost and uses little space. The TDA2003 amplifier IC provides an output current up to 3.5 A, very low harmonic and cross-over distortion. Has short circuit protection DC and AC, thermal protection above the permissible range, load dump voltage surge up to 40V and incidental breaks ground.

TDA2003 AMPLIFIER CIRCUIT SCHEMATIC

NOTE: The integrated output TDA2003 must be attached to an aluminum heat sink for the heat emitted by them is dissipated. If you put the heatsink, integrated tightly screwing on, surely the amplifier will burn in a few minutes.

4558 PREAMPLIFIER SCHEMATIC

The main component of the preamplifier with tone control circuit is the integrated circuit C4558. The original is the integrated enterprise JRC4558 New Japan Radio Co., but they say only (C), at good quality as other brands. The 4558 is a dual op amp low noise. It is one of the most used in professional audio for excellent response and defined sound. You can use other replacements as the TL072, but the sound is not the same, although it is also good.

 

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7 Watt Audio Power Amplifier

This small amplifier is constructed around the TDA2003 IC, capable of delivering 4Wrms at 4ohms. The TDA 2003 has improved performance with the same pin configuration as the TDA 2002. The additional features of TDA 2002, very low number of external components, ease of assembly, space and cost saving, are maintained. The device provides a high output current capability (up to 3.5A) very low harmonic and cross-over distortion. Completely safe operation is guaranteed due to protection against DC and AC short circuit between all pins and ground, thermal over-range, load dump voltage surge up to 40V and fortuitous open ground. A conventional direct current can be connected as supply.

Circuit's picture:

Circuit diagram:

Parts

R1 = 470R
R2 = 47R
R3 = 100R
R4 = 1R
C1 = 1822pF
C2 = 100nF-63V
C3 = 100nF-63v
C4 = 10uF-25V
C5 = 470uF-25V
C6 = 1000uF-35v
C7 = 1000uF-35V
IC1 = TDA2003

Specifications:

• Music power output: 7W / 4ohm
• RMS output: 3.5W / 4ohm or 2W / 8ohm
• Total harmonic distortion: 0.05% (1W / 1kHz)
• Frequency response: 20Hz to 20kHz (-3dB)
• Signal/noise ratio: 86dB (A weighted)
• Input sensitivity: 40mV / 150Kohm
• Overload and short-circuit protected
• Supply voltage: 15V DC (8 to 18V DC possible) / 0.5A
• Dimensions: 2.2 x 1.4

 

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