The TDA7850 and TDA7851L are generally interchangeable.
These two chips are used more in car amplifiers. TDA7850 is an old chip, and now the market is basically replaced by TDA7851L, but there are burning friends or nostalgic TDA7850 sound quality, and TDA7850 is often used to replace the TDA7851 chip, and even replace TDA7388 (1, 27Pin is empty). However, there are many fake TDA7850 on the market at present, it is recommended to buy second-hand TDA7850 with a board, which compares the original genuine products.
The TDA7850 and TDA7851L are generally interchangeable.
These two chips are used more in car amplifiers. TDA7850 is an old chip, and now the market is basically replaced by TDA7851L, but there are burning friends or nostalgic TDA7850 sound quality, and TDA7850 is often used to replace the TDA7851 chip, and even replace TDA7388 (1, 27Pin is empty). However, there are many fake TDA7850 on the market at present, it is recommended to buy second-hand TDA7850 with a board, which compares the original genuine products.