مدار مجتمع (آی سی) آی‌سی جمع‌آوری داده مبدل آنالوگ به دیجیتال (ای‌دی‌سی)

Product Attributes

Introduction

The AK5522 is a 32-bit, from 8kHz to 192kHz sampling A/D converter for line and microphone inputs of digital audio systems. It achieves 108dB dynamic range and 98dB S/(N + D) while keeping low power consumption performance. Four types of digital filters are integrated and selectable according to the sound quality preference. The AK5522 has great power supply rejection ratio (PSRR) and common mode rejection ratio (CMRR), enabling to maintain sufficient characteristics when connecting USB bus power or DCDC converter output as a power supply. It is suitable for applications with noisy power supply such as USB audio interface, wireless speakers and car audio equipment. In addition, the AK5522 integrates a regulator with high PSRR for DAC power supply. Using the AK5522 with a DAC such as the AK4432 or the AK4452, it is enable to bring maximum DAC performance even in a poor power supply condition. Moreover, the AK5522 integrates low-jitter PLL circuit that generates a master clock for DAC from LRCK or BICK. It provides a low-EMI solution by avoiding unnecessary drawing of the master clock that has high frequency, on the board. The AK5522 helps reducing components and a mounting space with these features for environmental noise.