RDC2-0038a, Class D Power Amplifier TDA8920J, 100W Stereo

Photo 1/2 RDC2-0038a, Class D Power Amplifier TDA8920J, 100W Stereo
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see technical documentation
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SKU: 9000541468
Brand: ChipDipDac


The RDC2-0038a module is a high-performance class D power amplifier. The amplifier is based on the TDA8920BJ chip. This is a stereo analog chip with a digital amplifier designed to drive 4 ohm speakers up to 110 watts per channel.
The RDC2-0038a 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 ( purchased separately ) from our range or any other 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: ±12.5 ... ±30 V
Number of channels: 2 x BTL
Load resistance: 3-8 ohm
Output power: BTL 110W / 3 ohm 10% THD
Output power BTL 86W / 4 ohm / 10% THD
Output power: PBTL 210W / 6 ohm 10% THD
Output power: BTL 69W / 4 ohm / 0.5% THD

Amplifier circuit with output filters.


Block diagram of an amplifier with output filters.

Block Diagram

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 Creative Commons - Attribution - Share Alike license .

Technical parameters

Device type bass amplifier
Number of channels 2
Channel output power, W 100
ULF type tda8920j
Weight, g 43.38

Technical documentation

zip, 162 КБ