YL2020 20W+20W D Class 12V-24V Mini Digital Power Amplifier Module


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SKU: 815905
  1. Sam class D digital amplifier module
  2. Two-channel stereo.
  3. Power  supply voltage 8v- 24v
  4. The maximum dynamic current:4 A
  5. Static current < 40mA
  6. Input signal:500 mV
  7. IMpedance 4-8 Europe
  8. Rated Power 20W*2
  9. PCB Size 38*20*2.8MM PIN Width :2.54MMX12, Length 40MM


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Brand: Generic
Category: Audio Amplifier Module

YL2020 20W+20W D Class 12V-24V Mini Digital Power Amplifier Module is simple and mini size class D power amplifier but it has a remarkable audio power output via its dual stereo channel of 20W per channel.

Note : HW-004 on board working remains same.

Schematic and Pin Description:

Generic Untitled 1


Pin Description
Lin : Left channel signal input
AGND : Signal ground
RIN : Right channel signal input
GND : power ground
VCC: power positive
FAULT: Fault Indication
MUTE : Mute Control
SD: Shut down Control
RO : Right channel output negative
RO+ : Right channel output positive
LO+ : Left  channel output positive
LO- : Left channel output negative


As you can see in the schematic it is a small PCB, easy to install, with marked terminals and convenient for soldering. You just need to solder everything where it belongs.

If you do not use MUTE, connect FAULT and MUTE together – it will mute the amplifier in case of errors.

To enable MUTE, it must be connected to the positive supply voltage VCC (Smaller enough, but it is the easiest way).

The SD input is! SHUTDOWN, no need to plugin, and don’t use it as a mute either, as using it will make your speakers pound.

Package Includes:

1 x YL2020 20W+20W D Class 12V-24V Mini Digital Power Amplifier Module

SKU: 815905 Category:
Amplifier Type

Sam class D digital

Output Channel

Two-channel (stereo)

Operating Voltage

8v- 24v

Maximum Current consumption

4 A

Static current

< 40mA

Input Signal

500 mV

Output Power

20W x 2

Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.005 kg
Shipping Dimensions 4 × 3 × 1 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China