AK4646

[AK4646] www.DataSheet4U.com AK4646 Stereo CODEC with MIC/SPK-AMP GENERAL DESCRIPTION The AK4646 features a stereo CODEC with a built-in Microphone-Amplifier and Speaker-Amplifier. Input circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit, and Output circuits include a Speaker-Amplifier. These circuits are suitable for portable application with recording/playback function. The AK4646 is available in a 32pin QFN, utilizing less board space than competitive offerings. FEATURES 1. Recording Function Stereo Mic Input (Full-differential or Single-ended) Stereo Line Input MIC Amplifier (+32dB/+29dB/+26dB/+23dB/+20dB/+17dB/+10dB/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 5 Band Notch Filter Stereo Separation Emphasis 2. Playback Function Digital De-emphasis Filter (tc=50/15μs, fs=32kHz, 44.1kHz, 48kHz) Digital ALC (Automatic Level Control) (+36dB ∼ −54dB, 0.375dB Step, Mute) Stereo Separation Emphasis Stereo Line Output - Performance: S/(N+D): 88dB, S/N: 92dB Mono Speaker-Amp - S/(N+D): 60dB@150mW, S/N: 90dB - BTL Output - Available for both Dynamic and Piezo Speaker - Output Power: 400mW@8Ω (SVDD=3.3V) Analog Mixing: Mono Input 3. Power Management 4. Master Clock: (1) PLL Mode Frequencies: 12MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin) 1fs (LRCK pin) 32fs or 64fs (...