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BTL TDA7492 High-power Digital Power Amplifier Board 50W * 2
The TDA7942 digital power amplifier board is based on the TDA7492 of STMicroelectronics (Switzerland), with high cost performance! !! !! The price is not expensive, but the sound quality is very good, it can be said that it is the nemesis of analog IC. A few hundred yuan of LM3886 may not have this sound quality! Suitable for multimedia, desktop amplifier, etc., suitable for multi-channel amplifier, playing electronic crossover, manufacturing subwoofer amplifier, etc., simple power supply (DC single voltage 10-26V can be), 4 Euro speaker 24v power supply can reach 50w + 50w The maximum power is 50W * 2/8 ohm, mono BTL power is 100W / 4 ohm, small size, about 70 * 57mm, height 21mm (including heat sink)
Highest frequency response: 20K
Features are as follows:
1. Adopt SMT high-speed placement machine chip, high temperature reflow soldering, very stable performance, non-manual soldering process can be compared
2, with 4 groups of gain adjustment (note that batch orders can provide technical support, do not ask how to change if it is a single chip, the gain of this board is adjusted to the maximum by default)
3. The ultra-small 70X57MM can be used for maintenance, polishing active speakers, and improving sound quality. It can also be combined into multi-channel power amplifiers or 2.1 power amplifiers.
4, comes with a strong output short circuit and over temperature and overload protection, and to prevent switching shock, which is rare in other 50W power amplifier board
Notes for use:
      When the speaker impedance is 4 ohms, the working voltage must be less than 18V. When the speaker impedance is 6 ohms, the working voltage cannot exceed 24V. When the speaker impedance is 8 ohms, the operating voltage cannot exceed 26V. Do not reverse the polarity of the power supply.
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