GENERAL DESCRIPTION

The ADSP1802 is a digital signal processor (DSP) that features

Analog Devices, Inc. Super Harvard Architecture Single-Chip Computer

(SHARC). The ADSP1802 is a 32-bit/40-bit floating point processor

optimized for high performance audio applications with large

on-chip RAM, multiple internal buses to eliminate I/O bottlenecks,

and features an innovative digital applications interface (DAI).

FEATURES

► High performance 32-bit/40-bit floating-point processor for high

performance audio processing

► SIMD computational architecture

► On-chip memory

► 5 Mb L1 on-chip RAM

► 8 Mb L2 RAM

► Maximum instruction rate up to 400 MHz

► Supports VISA

► Supports FIR, IIR, FFT accelerator

► DAI

► 8 SPORTs

► 4 PCGs

► 1 S/PDIF transceiver

► 4 ASRCs with −140 dB SNR performance

► 1 IDP/PDAP

► 1 DAI SRU

► DPI

► 2 SPIs

► 1 UART

► 12 flags

► 1 TWI

► 3 PWM modules (PWM1, PWM2, and PWM3)

► 2 general-purpose timers

► 1 DPI SRU2

► 1 thermal diode

APPLICATIONS

► Audio and acoustic processing in cabin, including active sound

design, advanced chime, hands free and voice preprocessing,

active noise cancellation, and audio path management

► Audio processing in consumer applications, including UI communication,

professional audiovisual, hearables, and home theaters

► Intelligent buildings with security and surveillance