24-Bit Fixed-point DSP core delivering up to

50 MIPS

2 x 512 x 24Bitof RAM forX andY datamemory.

1536 x 24 Bit of RAM for Program.

1536 x 24 Bit of Additional RAM memory us-

able for delay or program

Serial Audio Interface.

Debug Port.

Control Interface for external GPIOs, Inter-

rupts, and RESET.

SPI and I

nal micro and DSP. Both master and slave op-

erating modes.

PLL Clock Oscillator

5V-tolerant 3V I/O interface

DESCRIPTION

This device is a high-performance, fully program-

mable DSP, suitable for a wide range of applica-

tions and particularly for Audio and Sound Proc-

essing. It contains a 24-bit 50 MIPS DSP core,

several interfaces for control and data,

plus a

configurable PLL.

The computational power and the memory con-

figuration make this device particularly suitable

for in car equalisation. This device will offer the

best trade-off between performance and cost

when coupled with the TDA7531, or other de-

vices of the same family. A library of sound proc-

essing functions is available for this device; some

of these functions are: parametric equaliser,

cross over filters, acoustic delay, dynamic com-

pression, Vol/Bass/Treble/Fader, active equalisa-

tion, Stereo Spatial Enhancement.

This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.

April 1999

®

ORPHEUS

24bit DSP

CORE

3072 x 24

P/Delay-RAM

512 x 24

Y-RAM

512 x 24

X-RAM

VDD4

GND4

VDD5

GND5

VDD6

GND6

RESET

INT

PVCC

PGND

SDI0 SDI1 SDI2

SDO0 SDO1 SDO2

VDD3 GND3

SCANEN TESTEN

DBRQN/GPIO3

DBRQ

VDD1 GND1

VDD2 GND2

XTO XTI CLKOUT

128 x 24

BOOT-ROM

LRCLKT

SCKT

LRCLKR

SCKR

SCL

SDA

SS

SCK

MISO

MOSI

GPIO3

GPIO4

GPIO5

DBCK/GPIO1

DBIN/GPIO2

I2C

Interface

Serial

Audio

Interface

SPI

Interface

Debug

interface

PLL

oscillator

GPIO

BLOCK DIAGRAM

TQFP44

(10 x 10)

TDA7502

IN-CAR REMOTE AMPLIFIER DSP

PRODUCT PREVIEW

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