AK7754

[AK7754] AK7754 Audio DSP with Stereo CODEC + MIC/HP-AMP GENERAL DESCRIPTION The AK7754 is a highly integrated audio digital signal processor (DSP) with two Audio I/F’s, Microphone and Headphone Amplifier. The audio DSP has 1536step/fs (at 48KHz sampling) parallel processing power, and AKM’s original Hands-free technology provides high performance noise and echo cancelling. The 96k-bit delay memory allows surround processing, acoustic effect and parametric equalizers. As the AK7754 is a RAM based DSP, it is programmable for user requirements. The internal SRC has various sampling rate converting modes, corresponds many sampling rates without changing the DSP operating sampling frequency. The AK7754 is available in a space saving small 48pin QFN package. FEATURES □ DSP Block - Word length: 24bit (Coefficient RAM & Data RAM: F24 floating point) - Processing Speed: 13.6 ns (1536step/fs fs=48kHz; 9216step/fs fs=8kHz) - Multiplication: 20 x 16 → 36-bit Double precision arithmetic av...