AnsweredAssumed Answered

Using 8 ohm speakers with TDF85xx.

Question asked by woo-geun chae on Jul 6, 2020
Latest reply on Jul 8, 2020 by Jose Alberto Reyes Morales



I'm looking for a class-D audio amplifier with speaker diagnostics.

I'm checking TDF8530TH/N2, TDF8597TH/N1, TDF8599CTH/N1.


1. We use 8 ohm speakers but the data sheet contains only the specifications for the 4 ohm and 2 ohm speakers.

  I would like to know the following specifications for 8 ohm speakers.


- Recommended supply voltage.

- Max output.

- Output(W) to THD+N graph (according to audio frequency).

  Specification of our device : THD+N is less than 3% when 1kHz audio, 20W output condition.

                                               The output power difference between 200Hz(5kHz) and 1kHz should be within +-5dB.


2. Can I manually run DC diagnostics after the IC is powered on?

   If possible, please let me know the sequence of S/W processing.