TDA7850 uses double-sided gold-plated plate, very few components, IC was originally a four-channel BTL IC for automotive amplifiers, but the sound quality is extremeBest, the installation is also extremely simple, using a single DC 12V, the limit is 15V, the product uses MOS tube to amplify the output, the output power is large for low resistance speakers.
TDA7850 power amplifier chip is the product of ST Yi Law Company, among which, the product code of authorized China package is CHN, and the product code of authorized Malaysia package is MLT, both package technology standards are the same, both are genuine.
TDA7850 is the field output integrated circuit of the TV, and TDA7388 audio power amplifier integrated circuit. An integrated circuit is a tiny electronic device or component.
onsemi's SAA755: This chip is a very good audio power amplifier with excellent sound quality and efficient performance. It is widely used in a variety of audio equipment, including home theater and Bluetooth speakers. The SAA755 features low distortion and wide band to provide clear, full sound quality.
Analog Devices (ADI) is one of the world's leading analog technology companies, and its power amplifier chips are equally good at audio processing. The Analog Devices chipEquipped with a high-precision analog signal processor, it can provide high-fidelity sound quality for a variety of audio systems such as home theater, car stereo and portable audio equipment.
At present, there are mainly the following kinds of power amplifier chips with good sound quality: onsemi's SAA755: This chip is a very excellent audio power amplifier with excellent sound quality and efficient performance. It is widely used in a variety of audio equipment, including home theater and Bluetooth speakers.
At present, the representative power amplifier ics are: LM388TDA729LM4766 and so onThe well-designed and well-made IC power amplifier can be comparable to discrete components, including the world's top JEFF ROWLAND has used LM3886 to do the power amplifier with a price of twenty to thirty thousand.
The low power amplifier chip with the best sound quality is TPA3116D2. TPA3116D2 is an efficient, high-fidelity, low-power amplifier chip suitable for a variety of audio systems. It has excellent sound quality performance, low distortion and high signal-to-noise ratio to provide a clear, delicate audio experience.
1. Hold the LM1875 chip and face yourself with the font side. From the far left is the first pin, the first pin audio signal input, the second pin negative feedback, the third pin negative power supply, the fourth pin audio signal output, the fifth pin positive power supply. Internal structure: Output power up to 30 watts, A VO is often 90 dB.
2, can be directly changed. The LM1875 and TDA2030 (A) use the same TO220B package, and the pin definition is the same, in terms of parameters, the maximum voltageThe LM1875 supports 60V, while the IDA2030 (A) supports 44V.
3, different functions D1875: D1875 power amplifier chip is designed for video circuit, mainly used in video circuit design applications. LM1875: The integrated circuit is equipped with overload overheating and inductive load reverse potential safety protection.
4, lm1875: The output power is 20W. lm3886: Continuous output power 68W. Different sound quality characteristics lm1875: The sound quality is softer, less powerful than lm3886. lm3886: The degree of distortion is small, and the sound quality is more hierarchical and powerful.
1, the maximum output power of TDA7379 amplifier chip 2×38W/ 4Ω@18V, 1KHz, 10%, 2×34W/ 8Ω@22V, 1kHz, 10%.
2, TDA7377 parameters Operating voltage: 8 ~ 18V Static drain current: 150mA (maximum) output supplementCompensation voltage: 150mV Limit power consumption: 36W Output impedance: 4 OHMs tda7379 power amplifier chip parameters are output voltage 18V, current 2A, power is 30W, its input voltage is 32V.
3, TDA7379 power amplifier chip maximum output power within 20kHz to get flat amplitude-frequency characteristics and good phase frequency characteristics. The power conversion efficiency is as high as 90%, and the traditional analog power amplifier is incomparable to the high efficiency and energy saving, which changes the impression of the audio power amplifier in people's minds, which is bulky, power-consuming and large.
ESS Sabre is one of the most popular power amplifier chips on the market today. It uses 32-bit ultra-low distortion digital-to-analog converter technology, has an extremely high signal-to-noise ratio and dynamic range, and is able to output high-quality audio signals.
The choice of digital power amplifier chips varies depending on application scenarios and needs, but the LM3886TF1 and LM3886TF are two chips worth recommending. The LM3886TF1 features output shock protection without the need to use horn relays for delay, making it particularly suitableIt is used in subwoofers because it prevents relay contacts from jumping due to strong vibration.
The low power amplifier chip with the best sound quality is TPA3116D2. TPA3116D2 is an efficient, high-fidelity, low-power amplifier chip suitable for a variety of audio systems. It has excellent sound quality performance, low distortion and high signal-to-noise ratio to provide a clear, delicate audio experience.