便携式耳机放大器 (Portable Headphone A

便携式耳机放大器 (Portable Headphone Amplifier)

Parts

R1 = 10K 1/4W Resistor Technical data:

Current drain: 35mA per channel with 32 Ohms impedance headphones. Much less with higher impedance loads

Output voltage: Above 2V peak-to-peak on all loads

Sensitivity: 90mV RMS input for 2V peak-to-peak output

Frequency response: Flat from 30Hz to 20KHz

Total harmonic distortion @ 1KHz 10KHz: Below 0.05% on 32 to 600 Ohms load and up to 1.5V peak-to-peak output. Below 0.1% at maximum output

Unconditionally stable on capacitive loads