1, [1] I recommend TDA2030A power amplifier to you. If you listen to it at home and want a loud sound, choose this one! The power amplifier has good sound quality, simple peripheral components, and is widely used in stereo playback equipment.
2Working voltage: DC6~12V (12V is the best, low voltage will affect the output power and sound quality) Power: output 10W X 2 impedance: Output more than 4Ω TDA2005 is a 10W×2 output audio power ic, the shape of the child pin unidirectional arrangement, the use of voltage range 8 ~ 18V, static current 60mA, can also be connected to btl output form.
3, the polarity of the five power supply is reversed. The TDA2030A can work with single power supply or dual power supply, and the power amplifier board adopts dual power supply.
4, the maximum supply voltage of 8--15 volts. TDA2822 replaced with D2882 (both low-power dual-channel power amplifier chips) TDA2822 power amplifier integrated circuit principle and general integrated power amplifier circuit peripheral components more and need a larger radiator. The power amplifier circuit introduced in this paper is simple and convenient to make.
1, LM3886 mono 80W I now use this Wheway S5NThe horn is fine. Dual 26-28V LM4766 dual channel 8 Ohm load 40W without distortion. Used 7293 and found it too delicate. LM3886 Good, online finished board 118 yuan, power and sound quality can not be said.
2, TDA2009A (12W*2); TDA1520 (20W); TDA7580 (50W*4) These are single-supply powered. You want high sound quality so the digital amplifier IC is off the list.
3, TDA7294 is the famous European SGS-THOMSON microelectronics company in 90 yearsOne of the chip is designed for mono, which not only has the advantages of mellow sound quality and large power, but also has a complete protection circuit, which belongs to the high-grade model in the same type of chip.
TDA7850 power amplifier IC is a chip that enthusiasts often use when modifying CD hosts. This is a four-channel car audio special power amplifier chip, using the output form of BTL, peripheral components are few but excellent sound quality, installation is also very convenient, packaged as 25-pin double-in-line. The output power of the IC chip is 4×50W.
There are many low-voltage earphone amplifier ics on the market, such as LM480LM4809, and then the better LM491LM4917 (no output capacitor, built-in charge pump) chip can be used as a mobile headset audio amplifier.
2, easy to use. STK404 series integration blocks are availablePower output up to 100 watts or more. Therefore, it is widely used in home audio systems, car audio, stage audio and other audio equipment requiring high power amplification.
3, STK465 chip is good. STK465 is a high power stereo thick film audio amplifier produced by Sanyo Company in Japan. It has high output power and low distortion. It is a commonly used thick film audio amplifier. Compared with the TDA729LM3886 power amplifier IC, the sound quality is more distinctive.
4, Good. The stk394 250 is a series of high power stereo thick produced by Sanyo Corporation in JapanFilm audio amplifier, equipped with single-chip integrated chip and audio DA integrated circuit, has the effect of noise reduction and noise reduction, its sound quality is good, suitable for audio equipment, car audio and other fields.