PRODUCT OVERVIEW
The Parallel-Port AD1848K SoundPort® Stereo Codec integrates the key audio data conversion and control functions into a single integrated circuit. The AD1848K is intended to provide a complete, single-chip audio solution for business audio and multimedia applications requiring operation from a single +5 V supply. It provides a direct, byte-wide interface to both ISA (“AT”) and EISA computer buses for simplified implementation on a computer motherboard or add-in card. The AD1848K generates enable and direction controls for IC buffers such as 74_245.

FEATURES
    Single-Chip Integrated ∑∆ Digital Audio Stereo Codec
    Supports the Microsoft Windows Sound System®
    Multiple Channels of Stereo Input
    Analog and Digital Signal Mixing
    Programmable Gain and Attenuation
    On-Chip Signal Filters
        Digital Interpolation
        Analog Output Low-Pass
    Sample Rates from 5.5 kHz to 48 kHz
    68-Lead PLCC and 68-Lead TQFP Packages
    Operation from +5 V Supplies
    Byte-Wide Parallel Interface to ISA and EISA Buses
    Supports One or Two DMA Channels and Programmed I/O