5pcs TDA7297 12V Pure DC Power Amplifier Board Parts Level Rear Stage 2.0 15W+15W Dual Channel Electronic DIY Kit

Parameters TDA7297 pure final stage power amplifier board finished board plus anti reverse circuit effectively prevent chip burnout caused by power supply reverse component re layout lead hole spacing is standard 3 96mm easy for direct lead soldering or on board Standard terminal block This is a finished board that has passed the welding test and will be humming when it is properly connected DIY must see Pro recently there are very few customers who say that the board has noise we have the following reasons for analysis 1 using the mains rectification power supply 2 no potentiometer Solution 1 must add potentiometer if you do not add potentiometer you must use two 47K resistors respectively connected to the left and right channel audio input 2 If using the mains step down rectification power supply the 100uf filter capacitor must be replaced by 1000uf or more the battery supply does not have to be changed Some customers say that the heat is big most of them are not added heat sink or the radiator used is too small you must add a radiator the recommended radiator size 100x30x45mm length x width x height this part does not contain a radiator Power supply voltage DC DC 9V 15V Current 2A Recommended 12V voltageStatic current about 25mA not connected to the sound source connected to 8 speaker 12V power supply Output impedance 4 8Output power 15W 15WProduct Size Length 34MM Width 29MM Height 25MMPackage included 5 x DC Power Amplifier Board