On this extremely compact circuit (2.4 by 1.5 centimeters) is a complete and functional class D amplifier.
The latter offers a power 2x3W from a 5V supply. A surprising performance for its size, which opens to a multitude of practical applications. Whether to add an amplifier stage to an existing device in order to equip it with an additional output to build a miniature amplifier from zero to accompany a mobile reader at a small price or a active speaker DIY project ...
This module thus will delight DIYers worn on experimentation and repair, as well as professionals wishing to strictly control the form-factor of a handheld device.
Chip amplification PAM8043
The Ultra-Mini operates through an amplification chip PAM8043. This chip takes advantage dune building filterless (without low-pass filter) and can drive speakers directly, which considerably limits the circuit size while maintaining good audio quality.
The PAM8403 chip is rated at 3W THD 10% for a load of 4Ω with a 5V supply. Formidable performance, given its size and low power consumption. The Ultra-Mini module is therefore entirely appropriate to run on battery or to be simply connected to a USB-type diet.
Despite its compactness, the PAM8403 amplifying chip is still equipped with a connector for stand-by signal. This switch is integrated into the circuit of the Ultra-Mini. We can therefore easily connect a standby switch to equip its projects of such a function.
Right output channel
Left output channel
Power supply (2.5 - 5.5V)
Class D amplifier
2x 3W @ 4Ω
Ratio Signal / Noise
24 x 15.5mm
Screw socket distance
20.4 mm ↕
Class D / T
We deliver all over France, and internationally. To find out the amount of shipping costs, simply go to your cart once you have added the desired products. To discover our different services and delivery options, click on the following logos :