Both TDA2050 and TPA3116D2 are audio amplifier chips that differ in performance and features.
Regarding the problem of floor noise, there may be differences in the performance of floor noise between the two chips. In general, any amplifier will be accompanied by noise output when the input is open, which is a normal phenomenon. For TDA2050 and TPA3116D2, the floor noise can be affected by a number of factors, including the power supply, circuit design, component selection and layout. You can try to adjust circuit design, optimize component selection and layout, or take other noise reduction measures to solve the noise floor problem.
For resistance connection, although some people think that connecting a 1k resistance to the ground at the audio input can reduce noise, this is not a universally applicable method. The selection and connection of resistance need to be considered in combination with specific circuit design and application scenarios. If there is no difference in noise after the replacement of different values of resistance, it may be due to inappropriate resistance values or circuit design problems. It is recommended to carefully examine the circuit design, component selection and layout, or consult a professional for advice. In general, there is no simple answer to whether TDA2050 or TPA3116D2 is noisier, as it depends on a number of factors. In the process of design and application, it is necessary to evaluate and optimize according to the specific situation.
According to general reviews and user feedback, both TDA2050 and TPA3116D2 are considered low-noise power amplifier chips. However, there is no clear research data or evidence to support whether there is louder noise.
In terms of user reviews, some people may think that the TDA2050 has more power and less noise, while others may be inclined to think that the TPA3116D2 performs better at a certain power. This may be related to the specific speaker, audio source, and specific use environment. Therefore, to choose the power amplifier chip that suits your needs, it is also necessary to conduct comprehensive consideration and actual testing according to the specific situation.