Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302

SKU: AF2130

5,95 €

per pack

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Net: 5,00 €

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Delivery time: 1 - 3 Workdays (DE - int. shipments may differ)

Product Information

Product safety information

Manufacturer information:

Adafruit Industries LLC
Varick St. 150
Unknown NY
New York, Vereinigte Staaten, 10013
[email protected]
https://eckstein-shop.de/Adafruit-Marken

Responsible person:

Eckstein GmbH
Am Ostbahnhof 3
Niedersachsen
Clausthal-Zellerfeld, Deutschland, 38678
[email protected]
https://eckstein-shop.de

Dimensions and Weight
GTIN:	4060137024443
HAN:	2130
Category:	Audio/Sound Module
Storage Tiers:	Tier3
RoHS Certificate:	compliant
Shipping weight:	0,01 kg
Item weight:	0,00 kg
Dimensions ( Length × Width × Height ):	2,40 × 1,50 × 0,20 cm

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 8O 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 4O, 10% THD, 1.5W at 8O, 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 0.5mA in shutdown (due to pullup resistor on SD pin)

Note: The terminal block included with your product may be blue or black.

TECHNICAL DETAILS

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

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PAM8302A datasheet

EagleCAD PCB files on GitHub

Fritzing object available in Adafruit Fritzing library

Manufacturer according to GPSR
Adafruit Industries LLC, Varick St. 150, 10013 New York, Unknown NY, Vereinigte Staaten, [email protected], https://eckstein-shop.de/Adafruit-Marken
Responsible person according to GPSR
Eckstein GmbH, Am Ostbahnhof 3, 38678 Clausthal-Zellerfeld, Niedersachsen, Deutschland, [email protected], https://eckstein-shop.de