DEMOTS4956J: Headphone Amp, 38mW @ 16 Ω

The evaluation board allows the TS4956 amplifier to be driven directly via the I2C bus or by a PC connected to the evaluation board over an RS232 interface.

The TS4956 is a complete audio system device with three dedicated outputs, one stereo headphone, one loudspeaker drive and one mono line for a hands-free set. The stereo headphone is capable of delivering more than 25 mW per channel of continuous average power into 16 Ohm single-ended loads with 0.3% THD+N from a 5 V power supply. The device functions are controlled via an I2C bus, which minimizes the number of external components needed.

The overall gain and the various output modes of the TS4956 are controlled digitally by the control registers which are programmed via the I2C interface. It also features an internal thermal shutdown.