TDA7297 power amplifier board parts DC 12V pure rear stage 2.0 dual channel 15W 15W electronic DIY kit

● The new version of TDA7297 pure rear-stage power amplifier board parts and kits are added with anti-reverse connection circuit, which effectively prevents chip burnout caused by re verse power supply connection and rearrangement of components. The spacing between holes is the standard 3.96mm, which is convenient for direct lea d welding or adding standard connection terminals on the board. Contains components such as the product map, need to own welding oh.

DIY must see: very few customers have said the board is noisy, we analyze the following reasons: 1. Power supply with mains rectifier power supply; 2. No potentiometer. Solution:1. Potentiometer should be added. If potentiometer is not added, two 47K resistors should be connected in parallel to the left and right audio input terminals respectively. 2. If mains power is used for step-down rectifier power supply, the filter capacitor of 100uf is replaced with more than 1000uf (battery power supply does not need to be replaced). some customers also said that the fever was high, most of it is because the radiator is not added or the radiator used is too small, to add a radiator, recommend the size of the radiator is 100 x30x45mm (length x width x height), this part does not include the radiator.

◆ Advantages of this board: there is no current impact sound when starting up, the signal-to-noise ratio is high, and the noise can hardly be heard when the ear is close to the speaker without input. The sound performance is excellent-the treble is delicate, soft, transparent, without obvious harshness, and the ba ss is strong, full, powerful, and freely retract and unfold. Recently, I have seen a small number of customers say that the heat generation is large, which may be the reason why no radiator is added or the radiator is small. I advise customers that this board needs to be equipped with a radiator of appropriate size (large rather than small)

◆ The electronic kit ensures that the performance of the components is no problem and the line is correct. However, due to the difference in everyone's practical ability and technical level, you cannot be guaranteed to succeed in DIY. As the baby is cheap and the express fee is too expensive, there is no return and exchange service. Please consider carefully before shooting. Please confirm the payment and praise it within 24 hours after receiving the goods. The photographer agrees with this clause. If you disagree, please make a detour, it is recommended that buyers without electronic foundation do not shoot.

◆ the core of this power amplifier board is the original imported TDA7297 two-channel power amplifier chip, which is produced by SGS-THOMSON Italian Microelectronics Company in Europe. The power supply is designed for direct current power supply, which can be directly supplied by 12V battery. The voltage range is 9-15V, the recommend voltage is 12V, the output power is as high as 15W +15W, and the max power is as high as 30W +30W. The volume is small but the sound is shocking. It is suitable for any occasion.
◆ Volume: 34 x29x25mm (length x width x height), ultra-small volume, suitable for any space.
Voltage: DC 9-15V, recommend voltage 12V, current 2A or more
power: 15W +15W
output impedance: 4-8 ohm
net weight: 10g

◆ The working efficiency of this power amplifier board is as high as 90%, which is very energy-saving. It can play continuously for more than 5 hours with 12V motorcycle battery.

◆ This 12V power supply small volume power amplifier board is worthy of being a great power amplifier module. The owner uses this power amplifier board to push two 6.5 inch 100W sound boxes with the same sound performance. It does not feel difficult at all and the sound performance is excellent.

◆ If you need to add a volume control potentiometer in front of this power amplifier board, the connection method is very simple, as shown in the above figure

◆ DIY computer speakers with this power amplifier board can save mo ney and achieve better results than multimedia speakers with a market price of more than 100 yuan.

The power amplifier circuit design is reasonable, after strict testing before listing. Boot no annoying impact sound, no static noise, really great!

◆ The power amplifier board is designed with reference to the official standard circuit. The PCB circuit board adopts a 1.6mm thick FR-4 glass fiber board with reasonable wiring and compact component layout. No current impact sound, almost no static noise.

◆ This power amplifier board needs to be equipped with radiator by itself, this price does not include radiator, can choose to use aluminum plate to make their own, aluminum alloy shop scrap a lot of

◆ A good power amplifier also needs a good sound source. If you often use a computer to listen to music, it is recommended that you install a new version of the "Cool Dog Music" player, which can search for a large amount of lossless music in the formats of. ape,.flac,.wav. These music are high level lossless music. If you listen to music, you must listen to lossless.

◆ Remind again: this electronic kit ensures that the performance of the components is no problem and the line is correct. However, due to the difference in everyone's hands-on ability and technical level, you cannot be guaranteed to succeed in DIY. As the baby is cheap and the express fee is too expensive, there is no return and exchange service. Please consider carefully before shooting. Please confirm the payment and praise it within 24 hours after receiving the goods. The photographer agrees with this clause. If you disagree, please make a detour, it is recommended that buyers without electronic foundation do not shoot.