1/23

PRODUCT PREVIEW

This is preliminary information on a new product now in development. Details are subject to change without notice.

TDA7522

Digital Servo & Decoder

s

BUILT IN 8Bit MICROCONTROLLER

(STANDARD ST7) with:

– 24 KByte ROM available for ST7 & Servo-Audio

DSP

– 1024Byte RAM, including 128byte stack

– 4KByte RAM for CD-Text memory (for 1block)

– Built in R-W subcode buffer (Max. 144Byte

8packs) for CD-Text

– 24 bit general I/O port (PoartA[7-0], PortB[7-0],

PortC[7-0])

– One External Interrupt (16 IRQ encoder inside)

– 16bit free running counter timer

– 8bit 1ch general purpose A/D

– Watch dog

– Kenwood I/F

s

STAND-BY MODE (Stop all clocks and Shut down power of Peripheral (PON pin))

s

BUILT IN SERVO & AUDIO DIGITAL SIGNAL PROCESSOr (SAC-DSP) inclusive of:

– 1024x19bit Program RAM

– 512x16bit Coefficient RAM

– 1024x20bit Data RAM

– 128x6bit Decimation RAM

– MAC: 16 bit (Coefficients) x 20 bit (data) multiplier with 38 bit adder

– Instruction execution rate as high as 56MIPS

s

BUILT IN PROGRAMMABLE CLOCK GENERATOR PLL

s

PERIPHERALS for CD PLAYER APPLICATION

– Data Acquisition, Erasure correction, CLV&CAV controller

– Subcode decoder (CD-Text, CD-Graphic I/F)

– Shock proof memory controller, Disturbance detector

– Decimation filter

s

ACTUATORS DRIVING MODE SELECTABLE between PWM or PDM MODE

s

256Fs / 384Fs (16.9344MHz) CLOCK INPUT.

May 1998

TQFP80

(14 x 14 x 1.40mm body)