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AK7712

Asahi Kasei Microsystems
Part Number AK7712
Manufacturer Asahi Kasei Microsystems
Description Built-in 20-bit ADC/DAC Sophisticated Audio DSP
Published Mar 23, 2005
Detailed Description ASAHI KASEI [AK7712A-VT] AK7712A-VT Built-in 20-bit ADC/DAC Sophisticated Audio DSP General Description The AK7712A is...
Datasheet PDF File AK7712 PDF File

AK7712
AK7712

Overview
ASAHI KASEI [AK7712A-VT] AK7712A-VT Built-in 20-bit ADC/DAC Sophisticated Audio DSP General Description The AK7712A is a DSP(Digital Signal Processor) with built-in high performance 20bit 2ch ADC and 4ch DAC, on purposeto control the sound field.
It is possible to calculate 383 steps on 44.
1kHz and 48kHz sampling respectively.
In case of 32kHz sampling, it can caluculate up to 511 steps.
With a combination of this LSI and external memory for delay data,it can berealized easily to control the sound field such as Echo, Surround Presence Controller, and Key-control which are needed forsomething like Karaoke.
Parametric Equalizing can be done without external memory.
Features [ DSP unit ] † Word length: 24-bit (data RAM) † Instruction cycle time: 54ns(maximum speed) † Multiplier: 24 × 16 → 40-bit † Divider: 16 ÷ 16 → 16-bit † Program RAM: 384 × 32 bit † External memory: DRAM,Pseudo-SRAM and SRAM can be connected (only use for delay data).
† Sampling frequency: 32kHz∼48kHz † Automatic cl...


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