Audio DSP With Built-in Hands-Free Phone Features

The AK7750 is a highly integrated Audio Digital Signal Processor with a stereo Audio CODEC in one chip. The AK7750 combines an on-chip DSP and an ARM7 processor that CAN be used to create Echo Cancellation (EC) and Noise Cancellation (NC) functions. These functions make the AK7750 a perfect choice for hands-free phones that require suppressing acoustic echo and noise. Voice quality and noise suppression levels CAN be precisely adjusted by externally setting various parameters. Additionally, no external Flash ROM, or RAM is required as Memories for Echo and Noise Cancellation are integrated on- chip. By using an external Microprocessor to change algorithms, the AK7750 CAN be used in other Audio applications including sound field enhancements like surround, Volume Control parametric equalizer and speaker compensation. These functions are simplified by the AK7750 through the integration of 64K bit delay data RAM, a high-performance Audio CODEC with sample rates from 8 KHz ~ 48 KHz, and 8- channels of Digital Audio input / output. By AKM Semiconductor, Inc.
AK7750 's PackagesAK7750 's pdf datasheet

AK7750 Pinout, Pinouts
AK7750 pinout,Pin out
This is one package pinout of AK7750,If you need more pinouts please download AK7750's pdf datasheet.

AK7750 Application circuits
AK7750 circuits
This is one application circuit of AK7750,If you need more circuits,please download AK7750's pdf datasheet.

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