Cirrus Logic Inc. CS5331A-DSZ

Description
The CS5330A/31A is a complete stereo analog-to-digital converter that performs anti-alias filtering, sampling, and analog-to-digital conversion. It generates 18-bit values for both left and right inputs in serial form. The output sample rate can be infinitely adjusted between 2 kHz and 50 kHz.
The CS5330A/31A operates from a single 5 V supply and requires only 150 mW for normal operation, making it ideal for battery-powered applications.
The ADC uses delta-sigma modulation with 128X over-sampling, followed by digital filtering and decimation, which removes the need for an external anti-alias filter. The linear-phase digital filter has a passband to 21.7 kHz, 0.05 dB passband ripple, and >80 dB stop-band rejection. The device also contains a high-pass filter to remove DC offsets.

Features
Single 5 V Power Supply
18-Bit Resolution, 94 dB Dynamic Range
Linear Phase Digital Anti-Alias Filtering
-0.05 dB Passband Ripple
-80 dB Stopband Rejection
Low Power Dissipation: 150 mW
Power-Down Mode for Portable Applications
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, 44.1, and 48 kHz

Applications
Digital Audio
Portable Audio Devices
Battery-Powered Applications
Automotive Audio Systems