DSP - AKM
Description
[AK7756]
AK7756
DSP with Mono CODEC + Mic/Lineout Amp
GENERAL DESCRIPTION
The AK7756 is a highly integrated digital signal processor, including a mono voice audio codec, a MIC pre-amplifier and digital audio I/F.
The audio DSP has 9216step at fs = 8kHz parallel processing power.
As the AK7756 is a RAM based DSP, it is programmable for user requirements such as hands free and acoustic effect.
The AK7756EN is available in a space saving small 28pin QFN package and the AK7756VF is available in a 30pin VSOP package.
FEATURES
DSP
- Word length: 24bit (Data RAM 24bit floating point)
- Instruction cycle: 13.
6 ns (9216 steps at fs=8 kHz)
- Multiplier 20 x 20 → 36bit (double precision available)
- Divider 20 / 20 → 20bit
- ALU: 36bit arithmetic operation (with overflow margin 4bit) 24bit floating point
arithmetic and logic operation
- Program RAM: 3072 x 36bit
- Coefficient RAM: 2048 x 20bit
- Data RAM: 1024 x 24-bit (24bit floating point)
- Delay RAM: 3072 x 20bit, 3072 x ...
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