49W BTL 4 Channel Audio Power Amplifier

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This is a 49W – 4 Channel audio amplifier project that is built using TB2941HQ power Integrated Circuit which has a built-in four-channel BTL amplifier developed for car audio applications.

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SKU: EL117597 Category: Tags: , ,

Description

This is a 49W – 4 Channel audio amplifier project that is built using TB2941HQ power Integrated Circuit which has a built-in four-channel BTL amplifier developed for car audio applications. The maximum output power is 49W using a pure complementary P-Ch and N-Ch DMOS output stage. In addition, a standby switch, a mute function, and various protection features are included. The audio mute function is enabled when jumper J1 is connected to 5V DC. The power supply can be turned ON or OFF via pin 4 (Stby). The threshold voltage of pin 4 is 2.2V to VCC (5V). The amplifier is turned ON when the standby pin is connected to 5V DC using Jumper CN10. Onboard 5V regulator provided for standby and Mute function. When the headroom voltage is suppressed by the low VCC, the TB2941HQ switches outputs voltage from VCC/2 to VCC/4 and reduces the audible pop noise and the sound cutting. The TB2941HQ can reduce the distortion which is generated by low VCC because this amplifier circuit keeps the voltage gain of BLT outputs. In other words, if one side output of BTL has the voltage margin, its output can make up for the clipped waveform of the other side output.

more information: https://www.electronics-lab.com/project/49w-btl-4-channel-audio-power-amplifier/

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