1, lm1875. The lm1875 amplifier has better sound quality and is very strong, especially in low frequency bands. One of the most commonly used power amplifier chips, lm1875 is designed for mono, which not only has the advantages of mellow sound quality and large power, but also has a complete protection circuit with dual channel power amplifier board effect.
2The sound quality is similar, the rated power is about 20 watts, the former is more commonly used. The key chips should be imported, circuit design and power supply as far as possible.
3, it is not recommended to replace directly, the design parameters and the best working state are different.
4. LM1875 is a mono amplifier IC, LM1876 is a dual-channel amplifier IC, LM1876 is equivalent to two LM1875s; In terms of parameters, they are almost the same, so there is little difference in essence. Generally, LM1876 will be considered only when the structure is compact. If it is not for the fact that LM1875 is still used for good heat dissipation,And it's easy to buy.
5, the best choice is the power amplifier made of discrete components is good. Choosing IC as a power amplifier is generally rubbish. But the main thing you can buy now is IC amplifier blocks. Can't help it. LM1875 is actually a copy of 2030 structure, LM1875 can directly replace the 2030 power amplifier block.
6, good, large power, sound quality is also good, with a light gall taste, the transformer needs 300W such the best.
1, the sound quality is similar, the rated power is about 20 watts, the former is more commonly used. The key chips should be imported, circuit design and power supply as far as possible.
2, LM1875 is a high-fidelity audio power amplifier, its output power is 20W, the use of a single power supply, the power supply voltage between 12V and 60V, suitable for low-power audio amplifier design, and because it is mono, so you can put two LM1875 in parallel together to achieve dual-channel powerLet go.
3. lm1875 The lm1875 amplifier has better sound quality and is very strong, especially in low frequency bands. One of the most commonly used power amplifier chips, lm1875 is designed for mono, which not only has the advantages of mellow sound quality and large power, but also has a complete protection circuit with dual channel power amplifier board effect.
4, power amplifier board with 2 chips and more than 4 pieces of the difference lies in the number of cores, characteristics, advantages are different. A chip is a small piece of silicon containing an integrated circuit, often part of a computer or other electronic device.
5, each has its own merits, LM1875 comparison1876 Which sound quality is good '>tda1521 and lm1876 which sound quality is good
The power amplifier chip used makes the sound quality very good. Clear and natural tone: Compared with other power amplifier chips, the tda1521 presents a more natural and balanced tone, and the sound is clear and clean, without distortion or noise.
I have done both TDA1521 and LM1875. The sound quality is comparable. However, the calorific value of 1521 is much less than that of 187 which makes it much, much less troublesome to make.
TD is recommended if you don't want to be too loudA1521 connected to BTL, the sound is super beautiful, but also cheap, the most important thing is that the circuit without delay can hardly hear a little impact sound, which is 2030, 1875 and other power amplifier blocks can not reach.
Although there are many fakes on the market now, the real TDA2030 performs well in sound quality. However, the LM1875 is generally considered superior to the TDA2030 in terms of sound quality with the same circuits and components. LM1875: This chip is loved by people and is known for its unique musical flavor.