Other Parts Discussed in Thread: OPA1604, , TPA6211A1, TPA2025D1, TPA2080D1, TPA6205A1, LM48310
Hi,
I am using, OPA1604 high performance audio op-amp, (soundplus series has very less THD and noise figure). Next stage is audio amplifier. Can you suggest high performance audio amplifier which has low THD as well as noise figure.
Design requirement:
Supply: 3.3V
Load Impedance: 8 ohm
Power : 500mW to 1.5mW
Currently, I am using TPA2005D1, which is a class D amplifier.
Some questions:
Q1) I have learnt that class D amplifier is always inferior compared with class AB amplifier (sound boomer TI). It is only used for power efficiency.
Q2) Can you suggest some better audio amplifier, which can be used in place out TPA2005D1, which can provide high fidelity sound.
Q3) It is difficult for class D amplifier to pass EMI/EMC test.
Regards,