AK4951A Datasheet | Asahi Kasei Microdevices

[AK4951A] 24bit Stereo CODEC with MIC/HP/SPK-AMP 1. General Description The AK4951A is a low power 24-bit stereo CODEC with a microphone, headphone and speaker amplifiers. The AK4951A supports sampling frequency from 8k Hz to 48k Hz. It is suitable for a wide range of application from speech signal processing for narrowband, wideband and super wideband to sound signal processing for audio band. The input circuits include a microphone amplifier, an automatic wind noise reduction filter of the proprietary algorithms and a high performance digital ALC (automatic level control) circuit, therefore the AK4951A can record with high-quality sound regardless of whether indoors or outdoors. In addition, the output circuits include a cap-less headphone amplifier with a negative voltage generated by charge pump circuit and a speaker amplifier with 1W output power. It is suitable for various products as well as portable applications with recording/playback function. The AK4951A are...