Hi All,
Just wondering, is it a good idea to use a single ended amplifier for headphones, given that the phone impedance vary over a very wide range? I have come up with a circuit as attached, and wonder whether it will work as an output stage of a headphone amplifier? Appreciate any comments, on whether it will work, or any changes that will make it work. Thanks!
Just wondering, is it a good idea to use a single ended amplifier for headphones, given that the phone impedance vary over a very wide range? I have come up with a circuit as attached, and wonder whether it will work as an output stage of a headphone amplifier? Appreciate any comments, on whether it will work, or any changes that will make it work. Thanks!
Attachments
Then why not use the top transistor as CCS? In a common source configuration, a 600 ohm load will get higher voltage gain than a 32 ohm load.