TDA7550R_01 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7550R_01

DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS

STMicroelectronics 

®

TDA7550R

DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND

AUDIO APPLICATIONS

24-BIT, FIXED POINT, 45 MIPS DSP CORE

LARGE ON-BOARD PROGRAM RAM AND

DATA RAM (16Kw-24 BIT DATA RAM AND

16Kw-24 BIT PROGRAM RAM)

INTEGRATED STEREO, 16-BIT SIGMA-

DELTA A/D AND D/A CONVERTERS

PROGRAMMABLE CODEC SAMPLE RATE

FROM 4 TO 48 kHz

ON-BOARD PLL FOR CORE CLOCK AND

CONVERTERS

MANAGEMENT OF EXTERNAL FLASH /

SRAM / DRAM MEMORY BANK

I2C OR SPI SERIAL INTERFACE FOR EX-

TERNAL CONTROL

80-PIN TQFP, 0.65 mm PITCH

AUTOMOTIVE GRADE (FROM -40° C to

+85°C)

DESCRIPTION

The TDA7550R is a high performances, fully pro-

grammable 24-bit, 45 MIPS Digital Signal Proces-

sor (DSP), designed to support several speech

and audio applications, as Automatic Speech

BLOCK DIAGRAM

TQFP80

ORDERING NUMBER: TDA7550R

Recognition, Speech Synthesis, Speaker Verifica-

tion, Echo and Noise Cancellation. Software for

these applications is licenced by Lernout & Haus-

pie and BIT Innovation Technologies.

It offers an effective solution for this kind of appli-

cations because of the A/D and D/A converters

and the big amount of memory integrated on chip.

APPLICATIONS

Real time digital speech and audio processing:

speech recognition, speech synthesis, speech

compression, echo canceling, noise canceling,

speaker verification.

MULTIPLEXED BUS

I2C/SPI

MEMORY

PORT

INTERFACE

SAI

PROGRAM

RAM

DATA

RAM

8

GPIOs

July 2001

DSP

CORE

PLL

L

DAC

R

L

ADC

R

ANALOG OUT

ANALOG IN

D99AU1020B

1/10

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