GENERAL DESCRIPTION
The AD1940/AD1941 are a complete 28-bit, single-chip, multichannel audio SigmaDSP™ for equalization, multiband dynamic processing, delay compensation, speaker compensation, and image enhancement. These algorithms can be used to compensate for the real world limitations of speakers, amplifiers, and listening environments, resulting in a dramatic improvement of perceived audio quality.

FEATURES
    16-channel digital audio processor
    Accepts sample rates up to 192 kHz
    28-bit × 28-bit multiplier with full 56-bit accumulator
    Fully programmable program RAM for custom
        program download
    Parameter RAM allows complete control of 1,024 parameters
    Control port features safeload for transparent parameter
        updates and complete mode and memory transfer control
    Target/slew RAM for click-free volume control and dynamic
        parameter updates
    Double precision mode for full 56-bit processing
    PLL for generating MCLK from 64 × fS, 256 × fS, 384 × fS, or
        512 × fS clocks
    Hardware-accelerated DSP core
    21 kB (6,144 words) data memory for up to 128 ms of audio
        delay at fs = 48 kHz
    Flexible serial data port with I2S-compatible, left-justified,
        and right-justified serial port modes
    8- and 16-channel TDM input/output modes
    On-chip voltage regulator for compatibility with 3.3 V and
        5 V systems
    Programmable low power mode
    Fast start-up and boot time from power-on or reset
    48-lead LQFP plastic package

APPLICATIONS
    Automotive sound systems
    Digital televisions
    Home theater systems (Dolby digital/DTS postprocessor)
    Multichannel audio systems
    Mini-component stereos
    Multimedia audio
    Digital speaker crossover
    Musical instruments
    In-seat sound systems (aircrafts/motor coaches)