[AK7604] AK7604
Audio DSP with 2chADC + 6chDAC + 8chSRC
1. General Description
The AK7604 is a highly integrated digital signal processor, including a 24-bit stereo ADC with input
selector, three 24-bit stereo DACs, four stereo sampling rate convertors supporting the sampling
frequency up to 192kHz and an Audio DSP. The Audio DSP has 2560step/fs (when fs=48kHz) parallel
processing power and freely programmable for user requirements. The AK7604 is available in a 48-pin
LQFP package.
2. Features □ Audio DSP:
-Word length:
28-bit (Simple floating point supported)
-Instruction cycle:
Max. 8.1ns (2560fs at fs=48kHz)
-Multiplier:
24 x 24 → 48-bit (Double precision arithmetic available)
-Divider:
24 / 24 → 24-bit (Floating point normalization function)
-ALU:
64-bit Arithmetic Operation (with 16bits overflow margin)
-Program RAM:
1024-word x 36-bit
-Coefficient RAM:
1024-word x 24-bit …
