描述 Description

The CS5394 is a complete analog-to-digital converter for stereo digital audio systems. It performs sampling, analog-to-digital conversion and anti-alias filtering, generating 24-bit values for both left and right inputs in serial form. The output sample rate can be up to 50 kHz per channel.

The CS5394 uses 7th-order, delta-sigma modulation with 64× oversampling followed by digital filtering and decimation, which removes the need for an external antialias filter. The ADC uses a differential architecture which provides excellent noise rejection.

特性 Features

? 24-Bit Conversion

? Complete CMOS Stereo A/D System

— Delta-Sigma A/D Converters

— Digital Anti-Alias Filtering

— S/H Circuitry and Voltage Reference

? Adjustable System Sampling Rates

— including 32 kHz, 44.1 kHz and 48 kHz

? 117 dB Dynamic Range (A-Weighted)

? -103 dB THD + N

? Differential Analog Circuitry

? Internal 64× Oversampling

? Linear Phase Digital Anti-Alias Filtering

— with >117 dB Stopband Attenuation

? Single +5 V Power Supply

? Power Down Mode