cancel
Showing results for 
Search instead for 
Did you mean: 

TDA7266M max input voltage

SMoor.2
Associate

What is the max signal input voltage for the TDA7266M? We will be trying to merge a tube preamplifier with a 7266 power amp to make a small guitar amplifier. We can always shunt input signal voltage with a zener as the tube pre has a fairly large output signal.

1 REPLY 1
Peter BENSCH
ST Employee

No max input voltage is specified because the gain is fixed at about 26dB, so the signal is clipped/distorted anyway when overdriven.

I would recommend to limit the peak-peak input voltage a bit lower than VCC, i.e. the amplitude below VCC/2.

When your question is answered, please close this topic by choosing Select it best.

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.