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TDA7503

DUAL DSP PLUS MICRO FOR AUDIO APPLICATIONS

STMicroelectronics 

TDA7503

DUAL DSP PLUS MICRO FOR AUDIO APPLICATIONS

s Dual 24-bit 42 MIPS DSP Cores

s 8 bit Microcontroller

s 4 receive and 5 transmit stereo channels of

Serial Audio Interface

s Synchronous Serial Interface for

communication with external processor

s FIFO based mailboxes for inter-processor

communications

s External Memory Interface to 16Kbyte SRAM or

256Kbyte DRAM

s CORDIC co-processor

s Programmable PLL to suit wide range of

external crystal oscillation frequencies

s SPI control interface

s Powerful debug interfaces

s 5632 words Program Memory for DSP1, 1024

words Program Memory for DSP0

s 512 words X and Y Data RAM and Data ROM

for each DSP

s 512 byte Data RAM for Microcontroller

s 1536 byte Auxiliary RAM for Microcontroller

BLOCK DIAGRAM

TQFP100 (slug-up)

ORDERING NUMBER: TDA7503

DESCRIPTION

The device is a high-performance Digital Signal Pro-

cessing IC particularly suited to Audio applications.

The device contains two 24-bit 42 MIPS DSP cores

delivering a total of 84 MIPS of DSP processing pow-

er. There is also an embedded 8-bit Microcontroller

to handle all control functions. All data and program

memories for both DSP cores are on-chip. A variety

of highly programmable and flexible peripheral

blocks for both the Microcontroller and the DSPs

have been integrated to form a powerful audio pro-

cessing system on a single chip.

CONTROL

INTERFACE

SERIAL

PERIPHERAL

INTERFACE

MICRO

MEMORY

INTERFACE

WATCHDOG

TIMER

PLL

OSCILLATOR

DCLK

MX51

CORE

SAI

HOST

INTERFACE

0

HOST

INTERFACE

1

XDB0

XAB0

XDB1

XAB1

AUX-RAM

DATA-RAM

SRAM/DRAM

XCHG

X-RAM0

X-ROM0

Y-RAM0

Y-ROM0

P-RAM0

P-ROM0

CORDIC

DRST

ORPHEUS

CORE

DEBUG

INTERFACE

ORPHEUS

CORE

X-RAM1

X-ROM1

Y-RAM1

Y-ROM1

P-RAM1

P-ROM1

February 2003

D01AU1316

1/30

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