AK7738A - AKM

AK7738A Multi DSP

The AK7738A is a highly integrated digital signal processor, including a 24-bit stereo ADC with MIC gain amplifiers, a 24-bit stereo ADC with input selector, a monaural ADC, two 32-bit stereo DACs, 4 stereo sampling rate convertors supporting the sampling frequency up to 192kHz, two DSPs and a Sub DSP for Audio/HF process. Each two DSPs and a Sub DSP has 256.

Features

□ DSP1/DSP2: (Memory areas are shared by DSP1 and DSP2) - Word length: 28-bit (Simple floating point supported) - Instruction cycle: 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: 52-bit arithmetic operation (with 4bits overflow margin) - Program RAM: 8192 word x 36-bit - Coefficient RAM: 6144 word x 24-bit - Data RAM: 6144 word x 28-bit - Delay RAM: 20480 word x 28-bit - JX pins (Interrupt) - Clock Mode Selector for DSP1, DSP2 - Independent Power .