AK7742 Overview
[AK7742] = Preliminary = AK7742 24bit 2ch ADC + 24bit 4ch DAC with Audio DSP GENERAL The AK7742 is a highly integrated audio digital processor, including two stereo 24bit DAC’s and one stereo ADC with input selector. The stereo DAC and ADC feature high performance, archiving 106dB and 96dB dynamic range respectively, 8kHz to 96kHz sampling rate are supported. The audio DSP has 1536step/fs parallel processing power, and 74k-bit delay memory...
AK7742 Key Features
- Word length: 24bit (Data RAM 24bit floating point)
- Instruction cycle: 13.6 ns (1536step/fs fs=48kHz; 9216step/fs fs=8kHz)
- Multiplier 20 x 16 → 36bit (double precision available)
- Divider 20 / 20 → 20bit
- ALU: 40bit arithmetic operation (overflow margin 4bit) 24bit floating point arithmetic and logic operation
- Program RAM: 1536 x 36bit
- Coefficient RAM: 1536 x 16bit
- Data RAM: 1536 x 24-bit (24bit floating point)
- Delay RAM: 74kbit (3072 x 24bit)
- Sampling frequency: 8kHz ~ 96kHz