TPA6139A2EVM

EVAL MOD, HEADPHONE AMPLIFIER.

The TPA6139A2EVM is a TPA6139A2 customer evaluation module demonstrates the capabilities and operation of the TPA6139A2PW integrated. The TPA6139A2PW is a 25mW Pop Free stereo Head Phone driver designed to reduce component count, board space and cost. It is ideal for single supply electronics where size and cost are critical design parameters. The TPA6139A2 is capable of driving 25mW into 32ohm and 2Vms into a 600ohm load. DIRECTPATH also allows the removal of the costly output DC blocking capacitors. The device has fixed gain single ended inputs with a gain select pin. Using a single resistor on this pin, the designer can choose from 13 internal programmable gain settings to match the line driver with the Codec output level. It also reduces the component count and board space. Headphone outputs have ±8kV HBM ESD protection enabling a simple ESD protection circuit. The TPA6139A2 has built in active mute control with more that 80dB attenuation for pop free mute on/off control.