I am working on a project with 2 other classmates of mine. We are using the analog devices ADAU1701 DSP to process audio from a device using a 3.5 mm jack. We are not using the development board, so we need to find an amplifier IC. I am looking for an IC that can provide enough power for most headphones. I have seen all sorts of numbers floating around so I am confused about what would be appropriate. The supply voltage to the IC is 8V DC max. It also can't be too hard to solder on to a PCB. I could use some help.
I initially was looking at TI for chips and I noticed that a lot of their "hi-fi" chips only output 0.1w or less at 16 or 32 ohms. This confused me because I have a dedicated amp (liquid spark) for my planar magnetic headphones which is a Fostex T60rp (modded), and it outputs 1.3W at 50 ohms. Some other forums said that 1 to 2 milliwatts are enough because most headphones have a sensitivity of 90-115 dB/mW.
