PRODUCT OVERVIEW

The AD1871 is a stereo audio ADC intended for digital audio applications requiring high performance analog-to-digital conversion. It features two 24-bit conversion channels each with programmable gain amplifier (PGA), multibit sigma-delta modulator, and decimation filters. Each channel provides 105 db of dynamic range, making the AD1871 suitable for applications such as digital audio recorders and mixing consoles.

FEATURES

5.0 V Stereo Audio ADC with 3.3 V Tolerant Digital Interface

Supports 96 kHz Sample Rates

Supports 16-/20-/24-Bit Word Lengths

Multibit Sigma-Delta Modulators with “Perfect Differential Linearity Restoration” for Reduced Idle Tones and Noise Floor

105 dB (Typ) Dynamic Range

Supports 256/512 and 768 fS Master Clocks

Flexible Serial Data Port

Allows Right-Justified, Left-Justified, I2S Compatible and DSP Serial Port Modes

Cascadable (up to Four Devices) from a Single DSP SPORT

Device Control via SPI Compatible Serial Port or Optional Control Pins

On-Chip Reference

28-Lead SSOP Package

APPLICATIONS

Professional Audio

Mixing Consoles

Musical Instruments

Digital Audio Recorders, Including

CD-R, MD, DVD-R, DAT, HDD

Home Theater Systems

Automotive Audio Systems

Multimedia