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AK7752 - Audio/Hands Free DSP

General Description

The AK7752 is a digital signal processor with an integrated stereo CODEC.

The digital signal processor (DSP) can execute a high-quality hands-free algorithm, using only internal memory.

Fine tuning is available for improving voice quality of the hands-free function in actual user environments.

Key Features

  • [ADC Block].
  • Sampling rate: 8kHz ~ 48kHz.
  • 24-bit stereo.
  • S/(N+D): 86dB.
  • DR, S/N: 89dB (fs=8 kHz), 91dB (fs=48kHz).
  • Integrated DC offset canceling High Pass Filter [DAC Block].
  • Sampling rate: 8kHz ~ 48kHz.
  • 18-bit stereo.
  • S/(N+D): 90dB (fs =8kHz), 88dB (fs=48kHz).
  • DR, S/N: 95dB (fs =8kHz), 95dB.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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[AK7752] AK7752 Audio/Hands Free DSP with Stereo CODEC GENERAL DESCRIPTION The AK7752 is a digital signal processor with an integrated stereo CODEC. The digital signal processor (DSP) can execute a high-quality hands-free algorithm, using only internal memory. Fine tuning is available for improving voice quality of the hands-free function in actual user environments. The AK7752 includes delay RAM, an integrated PLL, four digital audio input and eight digital audio output ports. The AK7752 can perform pre and post processing for speech recognition, volume control adjustment and parametric equalization, executed by programs downloaded via the microprocessor interface.