TDA7056A PDF

For portable applications there is a trend to decrease the supply voltage, resulting in a reduction of output power at conventional output stages. Using the BTL principle increases the output power. In conventional DC volume circuits the control or input stage is AC coupled to the output stage via external capacitor to keep the offset voltage low. The maximum gain of the amplifier is fixed at

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These circuits look very easy to assemble but require additional components like resistors, capacitors and sometime inductors. You also need to connect a 3W, ohm or 1W, 8-ohm speaker at the output of the circuit. So when an audio signal is applied to the input, you can hear the amplified output from the speaker. Bridge-tied load working principle 2. Supply voltage range of 3V to 18V 3.

Gain of 40dB 4. No external components required 5. No switch-on or switch-off clicks 6. Good overall stability 7. Low power consumption Working on bridge-tied load principle , the circuit can output 1W power into an 8-ohm load with a power supply of 6V, and 3W power into a ohm load with a power supply of 12V. Audio amplifier circuit and working Fig. It has two sections: power supply and amplifier. Melody generator chip UM66 IC3 is used to provide audio input to the amplifier.

It requires around 3V input. So a voltage divider network using resistors R1 and R2 is used to derive 3V from 5V output of the power supply. The output of IC3 is connected to the positive input of TDA through a ohm potmeter used for volume control. Vcc pin of IC4 is connected to 12V supply along with two capacitors as shown in Fig. The 3W, ohm loudspeaker is connected to output pins 6 and 8 of IC4. Place transformer X1 and speaker inside the box. When you switch on the mains power supply, UM66 chip gets activated and it generates a melody tone, which is fed to TDA through potmeter VR1.

TDA chip amplifies the melody sound to around 3W, which can be heard from the speaker. By varying VR1, you can adjust the volume of the output tone.

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Referência e Circuito - TDA7056

Цена: 64,27 руб Перейти в магазин Автор не писатель, в обзоре обязательно присутствуют ошибки и лишние знаки препинания. Нужные знаки препинания отсутствуют И очень много лишних букв. Автор старался все исправить и даже убрал подводные лодки вокруг чего строилась вся история. Дальше речь пойдет именно про то как своими руками из старых и порой не очень нужных вещей сделать интересное и возможно полезное устройство, не зря ведь оно такое популярное… Изначально этот проект был мной задуман как: Попробуй собери, и не просто собери, а собери из того что есть, те.

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These circuits look very easy to assemble but require additional components like resistors, capacitors and sometime inductors. You also need to connect a 3W, ohm or 1W, 8-ohm speaker at the output of the circuit. So when an audio signal is applied to the input, you can hear the amplified output from the speaker. Bridge-tied load working principle 2. Supply voltage range of 3V to 18V 3.

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Philips TDA7056A Datasheet

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