Description:
100% Brand New and High Quality
Supply voltage: DC 9V-35V (12V issued low heat, in video, connect a 4Ω 20W speakers, adjust the volume with a potentiometer, potentiometer to about 25% open, the sound has some noisy, continuous work one hour, touch the chip is not significant warming.) The maximum supply voltage of this board is actually up to 44V, but the needs of their own to replace the voltage higher capacitance C1 the job, the pressure value is higher than the supply voltage can be.
Static current: about 25mA (missed tone, then 8Ω speaker, 12V power supply)
Speaker Impedance: 4Ω-8Ω
Output Power: Typical power 15W (PMPO 18W)
Total harmonic distortion: 0.08% (Po = 0.1 to 14W, RL = 4Ω)
SNR: 94dB-106dB (1W-15W)
Isolation:> 50dB
Frequency range: 20Hz-20KHz
PCB: 40 * 20mm
Heat: supply voltage is higher, the volume, the higher the heat. Reference video demo, used only a wide 2.8cm, 6cm long CCL as a heat sink , CCL between the chip and use of a thermal insulating sheet, as shown in picture. Default delivery item not contain that heat sink.
Wiring Tips:
if you need adjust the volume, can add potentiometer in signal input .
If you buy 2pcs this item, you can set up a dual-channel 18W*2 OCL, wherein one signal input terminal 'G' not be connected. R1 / R2 resistor used to adjust volume limit, avoid the tone was too big so that the output distortion caused by high increase or break the sound, but also can be directly replaced with wire!
Problems and Troubleshooting:
No sound, noise: This problem is usually because the signal input line reversed cause.
Sound small, noisy: The problem is usually because the signal lines caused by bad ground turned, ground conductive case, check the wires to break or change detection signal line with a multimeter.
Loud, noisy, but the noise will fluctuate with the rotary potentiometer: Potentiometer wiring error.
Chip and retreat Europe capacitance burned : AC or DC positive and negative wiring error!
Package Included:
1x TDA2030A amplifier board
Positive Feedback will be much appreciated from you.
