AK4644 - Asahi Kasei Microsystems

AK4644 Stereo CODEC

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 Fun.

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 Performance: S/(N+D): 83dB, DR, S/N: 86dB (MIC-Amp=+20dB) S/(N+D): 88dB, DR, S/N: 95dB (MIC-Amp=0dB)
• Wind-noise Reduction Filter
• Stereo.