TPA6130A2's maximum gain

Jin Kim

Intellectual 430 points

Other Parts Discussed in Thread: TPA6130A2

TPA6130A2's maximum gain is 4dB on the Table(Page 20 in Datasheet)

But, figures are plotting at 6.1dB on 7-10 page.

So, I'm confusing what is the maximum gain of TPA6130A2?

Please explain it.

over 13 years ago

0 Alfredo B. over 13 years ago

TI__Expert 6275 points

Hi Jin,

Actually, the max gain is 4 dB as indicated on page 20. However, on some of the plots from pages 7-10, there are cases where the device is set in BTL mode. In BTL mode the load is connected across OUTL and OUTR and therefore you get twice as much output swing. On those tests the amplifier gain is set to 0.1 dB + 6dB (BTL) = 6.1 dB.

Best regards,

Alfredo Barriga

Audio applications engineer

Dallas, TX - USA