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AK7782 Datasheet Dual Audio Dsp

Manufacturer: AKM (Asahi Kasei Microdevices)

Overview: [AK7782] AK7782 Dual Audio DSP with 24bit 5ch ADC & SRC GENERAL.

General Description

The AK7782 is an audio digital signal processor with integrated 24bit 5ch ADCs, an 8:2 stereo input selector and sample rate converters that support 2ch inputs and the frequency up to 96kHz.

The ADC supports wide range of sampling frequency from 7.35kHz to 96kHz.

Two integrated audio DSPs have high performance processing speed of 2560step/fs (at 48kHz sampling), and two 6k-word delay RAMs allow surround processing, time alignment adjusting and FIR filtering.

Key Features

  • [DSP1/DSP2].
  • Word Length: 28-bits.
  • Instruction Cycle Time: 8.1ns (2560fs, fs=48kHz).
  • Processing Step: 2560 steps (max) /fs= 48kHz, 44.1kHz (Normal Speed) 15360 steps (max) /fs= 8kHz, 7.35kHz 1280 steps (max) fs= 96kHz, 88.2kHz (Double Speed).
  • Multiplier: 24 x 16 → 40-bits (double precision available).
  • Divider:.

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