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ASAHI KASEI
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[AK4643]
AK4643
Stereo CODEC with MIC/HP/RCV/SPK-AMP
GENERAL DESCRIPTION The AK4643 is a stereo CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier, Receiver-Amplifier and 1.2W output Speaker-Amplifier. The AK4643 features analog mixing circuits and PLL that allows easy interfacing in mobile phone and portable A/V player designs. The AK4643 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.