The AK4675 is a stereo CODEC with a built-in Microphone-Amplifier, Receiver-Amplifier, cap-less Headphone-Amplifier and stereo audio class-D Speaker-Amplifier. The AK4675 features dual PCM I/F in addition to audio I/F that allows easy interfacing in mobile phone designs with Bluetooth I/F. The Speaker-Amplifier includes ALC (Automatic Level Control) circuit what is able to stabilize each output sound levels. The AK4675 is available in an 83pin BGA, utilizing less board space than competitive offerings.