ASAHI KASEI com [AK4644] AK4644 Stereo CODEC with MIC/HP/RCV-AMP GENERAL DESCRIPTION The AK4644 is a stereo CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier and Receiver-Amplifier.
The AK4644 features analog mixing circuits and PLL that allows easy interfacing in mobile phone and portable A/V player designs.
The AK4644 is available in a 32pin QFN, utilizing less board space than competitive offerings.
FEATURES 1.
Recording Function • 3 Stereo Input Selector • Stereo Mic Input (Full-differential or Single-ended) • Stereo Line Input • MIC Amplifier (+32dB/+26dB/+20dB or 0dB) • Digital ALC (Automatic Level Control) (+36dB ∼ −54dB, 0.
375dB Step, Mute) • ADC Perfo...

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