A 10-year high efficiency digital amplifier chip, special internal output processing circuit, eliminating the conventional LC network, lower than the EMI with the LC value! Maximum power output at a lower voltage, super power, built-in standby electronic switch, built-in high-gain buffer amplifier, built short circuit protection. “”Power””: 3.6 to 5.5V, single-cell lithium battery or USB powered appropriate, may also be used four 1.2V batteries, power transformers must add 5V regulator circuit, the chip will burn more than 5.5V.

Power: DC (DC): 3.6v-5.5V; Output power: 3W + 3W (4 ohms); SNR: 90dB; Efficiency:> 90%

Size: 24 * 15.5 * mm positioning hole size: 20mm aperture spacing: 2mm

PAM8403