CJMCU-832 PAM8302 2.5W Single Channel Class D Audio Power Amplifier Development Board For Arduino

CJMCU-832 PAM8302 2.5W Single Channel Class D Audio Power Amplifier Development Board For Arduino

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$5.99

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Product Description

Description:

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! CJMCU

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. CJMCU

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!

Features:

- 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

Note:

Speaker is not included, use any 4 ohm or greater impedance speaker.

Package included:

1 x Audio Power Amplifier

More Detailed Photos:

CJMCU-832 PAM8302 2.5W Single Channel Class D Audio Power Amplifier Development Board For Arduino
CJMCU-832 PAM8302 2.5W Single Channel Class D Audio Power Amplifier Development Board For Arduino
CJMCU-832 PAM8302 2.5W Single Channel Class D Audio Power Amplifier Development Board For Arduino

Additional Information

When you order from Alexnld.com, you will receive a confirmation email. Once your order is shipped, you will be emailed the tracking information for your order’s shipment. You can choose your preferred shipping method on the Order Information page during the checkout process. Alexnld.com offers 3 different international shipping methods, Airmail, Airmail registered and Expedited Shipping Service, following are delivery times:

Airmail and Airmail Registered Area Time
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Italy, Brazil, Russia 10-35 business days
Other countries 7-25 business days
Expedited Shipping 3-8 business days to Worldwide

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