The TDA2030A is a 14W Hi-Fi Audio Amplifier IC providing a class AB operation. This IC operates on its own to drive a single loudspeaker, or as a pair in a bridge amplifier configuration to provide a maximum output of 34 W. The equivalent is the UTC TDA2030.
Due to the high sound quality and wide frequency response of this IC, it may be utilised in active crossovers, to drive tweeter, midrange, and woofer loudspeakers. The low frequency sound production is excellent and it may be utilised in a subwoofer amplifier circuit. Usually hobbyists use it for making a guitar amp with active filtering tone control and crossovers, which of course sounds far better than a simple one-channel amplifier.
|1||Non inverting input|
The pinout uses the “pentawatt” package outline. It has an extremely simple pinout consisting of input pins, power supply, and an output pin.
The TDA2030A has a very low harmonic and crossover distortion and thus reproduces sound very accurately. If you are thinking of building an amplifier based on this chip then you will certainly enjoy the sound it produces.
Some of the nice features about this chip is that it has internal short circuit protection, and thermal shut-down. This will automatically limit the power, which is very useful if for example you are new to electronics and have made a simple error, thus saving you from a costly mistake.
I bought the TDA2030A Stereo Audio Amplifier Kit on eBay for less than a fiver including postage, and was impressed with the sound output. The loudness depends upon the quality of power supply to the circuit. The IC does overheat quite a lot therefore; a heatsink is most definitely required.
This audio amplifier IC provides a choice of split-rail power, or single rail option, which is extremely useful for hobbyists who may not have extravagant power supplies. It will operate on a minimum power of ±6 V in a split rail design, and 12 V in a single rail option. To achieve an output of 18 W, ±19 V is required.
Audio amplifiers normally use unregulated power supplies for dimensioning purposes. Just make sure your power supply has a nice large electrolytic capacitor for the power smoothing and you should get some nice sounds.
These are extremely low cost integrated circuits, which are available from places such as eBay, and RS. You could buy them online for almost nothing these days.
You will almost certainly find them online at most electronics stores. The eBay rate is around a pound; however, look for modules and kits, as they may work out cheaper.