copoler
Member level 1
g bw audio
Hi all,
I'm puzzled about how to choose the GBW of the pre-amplifier of audio amp, whose close loop gain is 1.
By hand calculation, to keep close loop frequency response identical between 20Hz~20KHz, I think 600K GBW is enough, but the products of TI/NS have GBW more then 2MHz, some even reachs 10MHz.
Thanks
Hi all,
I'm puzzled about how to choose the GBW of the pre-amplifier of audio amp, whose close loop gain is 1.
By hand calculation, to keep close loop frequency response identical between 20Hz~20KHz, I think 600K GBW is enough, but the products of TI/NS have GBW more then 2MHz, some even reachs 10MHz.
Thanks