E-TDA7590TR屬于集成電路（IC）的DSP（數(shù)字信號(hào)處理器）。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的E-TDA7590TRDSP（數(shù)字信號(hào)處理器）數(shù)字信號(hào)處理器是類似于微處理器或微控制器的器件，但區(qū)別在于其內(nèi)部架構(gòu)經(jīng)修改，適用于對(duì)連續(xù)數(shù)據(jù)流連續(xù)執(zhí)行以乘法和加法運(yùn)算為主的算法，而不是以條件邏輯或大量并發(fā)進(jìn)程為主的算法。該器件通常用于諸如音頻或視頻信號(hào)處理等應(yīng)用。

描述 Description

The TDA7590 is a high performances, fully programmable 24-bit, 120 MIPS. Digital Signal Processor (DSP), designed to support several speech and audio applications, as Automatic Speech Recognition, Speech Synthesis, MP3 Decoding, Echo and Noise Cancellation.

Nevertheless, the embedded CODECs bandwidth and the generic processing engine allow to proceed also full-band audio signals. The large amount of on-chip memory (128 Kwords), together with the 16 Mwords external memory addressable and the 32 general purpose I/O pins permit to build a DSP-system avoiding the usage of an additional Microcontroller.

The presence of serial and parallel interfaces allows easy connection with external devices including CODECs, DSPs, Microprocessors and Personal Computers.

特性 Features

■ 24-bit, fixed point, 120 MIPS DSP core

■ Large on-board memory (128KW-24 bit)

■ Host access to internal RAM through expansion port

■ Access to external RAM (16Mw) through expansion port

■ Integrated stereo, 18-bit Sigma-DELTA A/D and 20-bit D/A converters

■ Programmable CODEC sample rate up to 48KHz

■ On-board PLL for core clock and converters

■ External flash / SRAM memory bank management

■ I2C and SCI serial interface for external control

■ 2 ESSI interface

■ JTAG interface

■ Host interface

■ 144-pin TQFP, 0.50mm pitch

■ Automotive temperature range (from -40°C to +85°C)

Applications

Real time digital speech and audio processing: speech recognition, speech synthesis, speech compression, echo canceling, noise canceling, MP3 decoding.