Mono 2.5W Class D Audio Amplifier - PAM8302
Mono 2.5W Class D Audio Amplifier - PAM8302Mono 2.5W Class D Audio Amplifier - PAM8302Mono 2.5W Class D Audio Amplifier - PAM8302

Mono 2.5W Class D Audio Amplifier — PAM8302

225 грн.

Код товара: 2130

Описание товара

  • This super small mono amplifier is surprisingly powerful — able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8Ω speaker at over half a Watt) — making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There’s even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain. This board is a welcome upgrade to basic «LM386″ amps!

    The A+ and A- inputs of the amplifier go through 1.0uF capacitors, so they are fully ‘differential’ — if you don’t have differential outputs, simply tie the Audio- pin  to ground. The output is «Bridge Tied» — that means the output pins connect directly to the speaker pins, no connection to ground. The output is a high frequency 250KHz square wave PWM that is then ‘averaged out’ by the speaker coil — the high frequencies are not heard. All the above means that you can’t connect the output into another amplifier, it should drive the speakers directly.

    Comes with a fully assembled and tested breakout board. We also include header to plug it into a breadboard and a 3.5mm screw-terminal blocks so you can easily attach/detach your speaker. You will be ready to rock in 15 minutes! Speaker is not included, use any 4 ohm or greater impedance speaker.

    • Output Power: 2.5W at 4Ω, 10% THD, 1.5W at 8Ω, 10% THD, with 5.5V Supply
    • 50dB PSRR at 1KHz
    • Filterless design, with ferrite bead + capacitors on output.
    • Fixed 24dB gain, onboard trim potentiometer for adjusting input volume.
    • Thermal and short-circuit/over-current protection
    • Low current draw: 4mA quiescent and 1uA in shutdown mode
  • Технические данные

    PAM8302A datasheet

    Dimensions (without 0.1″ header):

    • 15mm x 24mm x 2mm / 0.6″ x 0.9″ x 0.08″
    • Weight: 1.4g

Mono 2.5W Class D Audio Amplifier - PAM8302