RDC2-0037a, Class D Power Amplifier TDA8920BTH, 100W Stereo

Photo 1/2 RDC2-0037a, Class D Power Amplifier TDA8920BTH, 100W Stereo
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see technical documentation
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5 500 ֏
from 10 pcs.5 400 ֏
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SKU: 9000541467
Brand: ChipDipDac


The RDC2-0037a module is a high-performance class D power amplifier. The amplifier is based on the TDA8920B chip. This is a stereo analog chip with a digital amplifier designed to drive 4 ohm loudspeakers up to 110 watts per channel.
The RDC2-0037a is configured for two-channel bridged (BTL) operation.
Both unbalanced and balanced (differential) signals can be fed to the analog input of the amplifier.
Built-in protection system monitors: overheating, overload and short circuit outputs. In the presence of one of the above errors, the amplifier turns off, and after the error is eliminated, it restores operation.
A simple passive digital demodulation filter, LCF05 (sold separately), is required to provide high-quality, high-performance audio amplification.
To cool the microcircuit, standard radiators for computer video cards with a size of 40x40 mm are used. The board has two holes for fastening and pressing the radiators to the amplifier chip. Use a cooler from our range or any other cooler with a similar mounting method.
We recommend as preamplifiers ( purchased separately ):
- RDC1-0034a , differential, high performance OPA1632 preamplifier
- RDC1-0048 NE5532 Low Noise Amplifier
- RDC2-0058 , preamplifier - tone block on ADAU1761

Output stage supply voltage: bipolar from ±12.5V to ±30V
Number of channels: 2 x SE, 1 x BTL
Load resistance SE: 4-8 ohm
Load impedance BTL: 8 ohm
Output power SE: 100W / 4 ohm
BTL output power: 210W / 8 ohm
Efficiency with 6Ohm load: 90%

The “Documentation” section contains the specification and diagram of the amplifier. You can assemble it yourself using our printed circuit board - PCB RDC2-0037 .

Connection to LCF05 filter

BTL Stereo

Detailed instructions for turning on and configuring the amplifier can be found in the "Documents" section.

This is an open project! The license under which it is distributed is the Creative Commons - Attribution - Share Alike license .

Technical parameters

Device type bass amplifier
Number of channels 2
Channel output power, W 100
ULF type TDA8920BTH
Weight, g 44.25

Technical documentation

TDA8920B Datasheet
pdf, 210 КБ
Specification RDC2-0037a
pdf, 49 КБ
Scheme RDC2-0037
pdf, 36 КБ
Gerber files per board
zip, 127 КБ
Kicad Project
zip, 278 КБ