TDA7057AQ for PC

[Gold_xyz]

Hi to all 😀

I have this good IC amp found for built-in PC audio system.

TDA7057AQ = Bridge output stereo with dc volume control.
Supply 12V Output 8W on 8 Ohms

http://www.nxp.com/acrobat/datasheets/TDA7057AQ_4.pdf

also I can reduce the number of cable on my desk.
(only two cable one for each speaker)

and with dc volume control I can drive more channel with
an only (linear) potentiometer...

 

[Rod_T]

Interesting Chip. I particularly like the DC volume input, but the THD values are quite high. I'm not sure you would like the sound... ok for casual use though.

 

[Gold_xyz]

Interesting Chip. I particularly like the DC volume input, but the THD values are quite high. I'm not sure you would like the sound... ok for casual use though.

Hi,
Thanks for the answer 😀

THD = 0.3% @ 0.5W (from datasheet) enough high... 🙁
perhaps this distorsion comes from dc volume stage...

I need to build a power amplifier PC-card with direct output
speaker connection. (with supply from PC-12V)