مدار مجتمع (آی سی) آی‌سی جمع‌آوری داده ای‌دی‌سی و دی‌ای‌سی کاربرد ویژه

Product Attributes

Introduction

The AK557x series is a 32-bit, 768 kHz sampling, differential input A/D converter for digital audio systems. It achieves 121 dB dynamic range and 112 dB S/(N+D) while maintaining low power consumption performance. The AK5574 integrates a 4-channel A/D converter, suitable for mixers and multi-channel recorders. Four types of digital filters are integrated and selectable according to the sound quality preference. The AK5574 can be easily connected to a DSP by supporting TDM audio formats. Additionally, it supports DSD output up to 11.2MHz. The channel summation mode improves the dynamic range performance by summing-up multiple channel A/D data and averaging. The dynamic range is improved to 124 dB in 4-to-2 mode and to 127 dB in 4-to-1 mode.

Features

• Sampling Rate: 8 kHz - 768 kHz
• Input: Full Differential Inputs
• S/(N+D): 112 dB
• DR: 121 dB (4-to-2 mode: 124 dB, 4-to-1 mode: 127 dB)
• S/N: 121 dB (4-to-2 mode: 124 dB, 4-to-1 mode: 127 dB)
• Internal Filter: Four types of LPF, Digital HPF
• Power Supply: 4.75 - 5.25 V (Analog), 1.7 - 1.98 V or 3.0 - 3.6 V (Digital)
• Output Format PCM mode: 24/32-bit MSB justified, I2S or TDM DSD mode: DSD Native 64, 128, 256
• Maximized Slot Efficiency in TDM Mode by Optimal Data Placed Mode
• Cascade TDM I/F: TDM512: fS = 48kHz TDM256: fs = 96 kHz or 48 kHz TDM126: fS = 192kHz, 96 kHz or 48 kHz
• Operation Mode: Master Mode & Slave Mode
• Detection Function: Input Overflow Flag
• Serial Interface: 3-wire Serial and I²C μP I/F (Pin setting is also available)
• Power Consumption: 275 mW (ΔVDD = 5.0V, TVDD = 3.3V, fS = 48kHz)
• Package: 48-pin QFN