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80W Audio Amplifier Based on TDA7295

2012-10-31 Posted by:circuit Source:Internet Visits: Comment () Size:L M S

Summary:Below is a 80W amplifier circuit is constructed by using a power IC TDA7295. With a very simple design, makes this circuit very easy to build. TDA7295 has many features to support your audio system, the most important is that the IC has ver

Below is a 80W amplifier circuit is constructed by using a power IC TDA7295. With a very simple design, makes this circuit very easy to build. TDA7295 has many features to support your audio system, the most important is that the IC has very low distortion and very low noise feature.

Schematic diagram:

80W Audio Amplifier Based on TDA7295 circuit

PCB Layout:

80W Audio Amplifier Based on TDA7295 circuit

Notes:

  • Power supply voltage should not exceed 40V.
  • Use stable and regulated power supply. The power supply should be has  minimum current output  2A.
  • Use heatsink to prevent overheating on the power IC.

About TDA7295:

The TDA7295 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications such as home theatre and topclass TV. The wide voltage range and to the high out current capability make the TDA7295 able to supply the highest power into both 4W and 8W loads even in presence of poor supply regulation, with high Supply Voltage Rejection.

The built in muting function with turn on delay simplifies the remote operation avoiding switching on-off noises.


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