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AK7746 - Audio DSP

General Description

The AK7746 is a highly integrated audio processor, including 5 A/D channels, an input mux that can select 2 stereo pairs from 8 stereo inputs, and an on-chip DSP.

High quality analog performance is provided by the ADC’s achieving 98dB (48kHz) dynamic range.

Key Features

  • DSP: Word length: Instruction cycle time: Multiplier: Divider: ALU: 24-bit (Data RAM) 27ns (768fs, fs=48kHz ) 24 x 16 → 40-bit 24 / 24 → 16-bit or 24-bit 34-bit arithmetic operation (Overflow margin: 4bit) 24-bit arithmetic and logic operation Shift+Register: 1, 2, 3, 4, 6, 8 and 15 bits shifted left 1, 2, 3, 4, 8 and 15 bits shifted right (Other numbers in parentheses are restricted. Provided with indirect shift function) Program RAM: 768 x 32-bit Coefficient RAM: 1024 x 16-bit Data RAM: 256 x.

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Other Datasheets by AKM (Asahi Kasei Microdevices)

Part Number Description
AK7742 24Bit 2ch ADC + 24Bit 4ch DAC
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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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[ASAHI KASEI] [AK7746] AK7746 Audio DSP with 5-channel 24-bit ADC and Input Mux 1. General Description The AK7746 is a highly integrated audio processor, including 5 A/D channels, an input mux that can select 2 stereo pairs from 8 stereo inputs, and an on-chip DSP. High quality analog performance is provided by the ADC’s achieving 98dB (48kHz) dynamic range. The A/D supports sampling frequencies from 8kHz to 96kHz. The AK7746 includes 72kbits of SRAM for audio delay that is suitable for simulated surround functions and speaker compensation. The programmable DSP allows up to 4608 execution lines per audio sample cycle at 8kHz, 768 lines at 48kHz, or 384 lines at 96kHz with multiple functions per line.