The Raspberry Pi 3 - even faster than the Pi 2, 1 Giga of RAM, WiFi...
Assortment of BreadBoard wires Female-Female 300mm and 75 mm + Long...
Prototyping and e-learning platform for creating interactive objects or...
2 heat sinks + adhesive - high performance, for your Raspberry-Pi
25 Max. per order Raspberry-Pi Pico Microcontoler RP2040 Cortex M0+ @...
Manufacturers
Capture telemetrics data and create Web dashboards Rasperry-Pi with...
Temperature - ±1°C accuracy Athmospheric pressure - ±1 hPa absolute...
Devastator Tank - Mobile robot Metal motor 45:1, 4 mm axis, 133 RPM 6V...
Maqueen Plus - Advanced educational robot Circuit charge Li-ion Line...
Maqueen PLUS with mechanic elements Fork Lift Front loader Grip holder...
Maqueen Forklift For Maqueen (>= 4.0) For Maqueen PLUS Metal servo...
Logarithmic Potentiometer 2x 10 KOhm Logarithmic - pots binded Switch...
Logarithmic Potentiometer 10 KOhm Logarithmic - pots binded Switch round...
Extension board for the Arduino Nano 2.54mm spacing connector 12V max...
DRV2605L motor controller Buzzer & vibration motors, Haptic...
Gravity : Ozone O3 sensor Range: 0-10ppm Resolution: 0.01ppm I2C...
Speech recognition, Grove Onboard microphone Very low rate 22 entries of...
Viewed products
Mono Audio Amplifier - 2.5W - Class D...
AMP-M2.5W-CLASSD
ADA2130
Mono Audio Amplifier - 2.5W - Class D - PAM 8302
In stock
Availability date:
2.5W Audio Amplifier - Mono - Class D - PAM8302
Mono Audio Amplifier - 2.5W - Class D - PAM 8302
Recipient :
* Required fields
or Cancel
A little super-powerful super-strong mono amplifier - capable of delivering up to 2.5 Watts on a speaker with a 4-8 Ohm impedance. This small component contains a class D controller capable of operating with a voltage between 2.0V and 5.5C continuous. As the amplifier is class D, it is very efficient (efficiency above 90% on a speaker of 8Ω above 1/2 watt) making it a perfect tool for portable projects or powered by batteries. It has a thermal protection (and over-current) are nevertheless careful because the circuit can become terribly hot well before the activation of the thermal protection. The card has a small potentiometer to adjust the volume (so you can decrease the volume below the default gain of 24dB).
This card is a nice upgrade compared to a simple amplifier "LM386"!
The inputs A+ and A- of the amplifier pass through a capacity of 1.0uF, so it is a 'differential' amplifier.
If you don't have a differential output, then connect the Audio output to the ground.
The output is of type "Bridge Tied", which means that the output pins are connected directly to the pins of the speaker, no connection to the ground.
The output is of type PWM (square wave) at 250kHz high frequency and it is the speaker coil that performs "average" signal - the high frequency signal at 250kHz is inaudible.
All this means that you have to connect this product directly to a speaker, you can't connect the output to another amplifier.
Use with a speaker having an impedance of 4 Ohms and more.
The product is delivered fully assembled (except PinHeader and terminal block) and tested by Adafruit. The product contains amplification, a PinHeader and a 3.5mm terminal block to easily connect/disconnect your amplifiers. You will be ready in less than 15 minutes! The speaker and breadboard used for illustration purposes are not included.
See the images of the product sheet. One of them explains how to connect the PAM8302 to a Raspberry-Pi 2.