24-Bit Mono CODEC with HPF, ALC/Eq and MIC/SPK-Amp
The AK4637 is a low power 24-bit Mono CODEC with a microphone and speaker amplifiers. The AK4637 supports sampling frequency from 8kHz to 48kHz. 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 and a high performance digital ALC (automatic level control) circuit. In addition, the output circuits include a speaker amplifier with 1W output power. It is suitable for various products as well as portable applications with recording/playback function.
The AK4637 are available in a small 20-pin QFN (3mm x 3mm, 0.4mm pitch: AK4637EN) package saving mounting area on the board.
Application: IP Camera, Digital Camera, MFP(Multi Function Printer), IoT
|●1W Output SPK-Amp
The integrated monaural speaker amplifier is capable of 1W output power to directly drive an integrated speaker for playback requiring no external components.
●Fulfilling recording function
This device integrates a low-noise/low-power microphone amplifier and microphone power supply to enable high quality, realistic recoding performance. This is achieved by "Wind Noise Reduction Filter", "5-band Notch Filter" that allow for the removal of specific system tones/noises and a "Digital Automatic Level Control (ALC) Circuit" to optimizes recording levels.
The AK4637EN achieves very low-power consumption: 6.5mW in monaural recording mode and 11.6mW in speaker playback mode, improving battery life of mobile devices.
24bit Mono CODEC AK4637
Mono CODEC with 1W Output SPK-Amp; the AK4637 is suitable for IoT applications.
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