TDA7522

TDA7522 Digital Servo & Decoder PRODUCT PREVIEW 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 – I C bus I/F – Watch dog – Kenwood I/F 2 TQFP80 (14 x 14 x 1.40mm body) s s STAND-BY MODE (Stop all clocks and Shut down power of Peripheral (PON pin)) 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 s BUILT IN PROGRAMMABLE CLOCK GENERATOR PLL 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 s ACTUATORS DRIVING MODE SELECTABLE between PWM or PDM MODE 256Fs / 384Fs (16.9344MHz) CLOCK INPUT. May 1998 This is preliminary information on a new product now in development. Details are subject to change without notice. 1/23 TDA7522 1.0 DESCRIPTION TDA7522 is a single chip processor consisting...