TDA7522 Datasheet PDF | STMicroelectronics

STMicroelectronics TDA7522

TDA7522 is a single chip processor consisting of Decoder, Servo and 1bit D/A for 4times CD-ROM / CDAudio. By combination of ST Analog front-end IC (TDA7521), all CD functions including Shock Proof Memory Controller and CD-Text function can be realized. The TDA7522 portfolio is constituted by three different versions: – ’development’: which gives the possibility to have at disposal the complete sw development environment, by means of a dedicated package – ‘in field development’: standard package but with selection of program memory: on chip RAM, on chip ROM.

Part No.	TDA7522
Datasheet	TDA7522 Download
Manufacturer	STMicroelectronics
Description	Digital Servo & Decoder
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DESCRIPTION

Main concept of this IC is that it is based on embedded System Micro Controller which allows customer to develop system software very easily: just based on provided commands. Further the microcontroller is fully customer dedicated in terms of both software and general purpose Port. The program RAM is fully patchable through the standard IIC interface, giving the possibility of sw changing while chip is working in the real environment. – ‘production’: standard package, but with software permanently stored in the on chip ROM. 2.0 TECHNOLOGY All version are produced using the HCMOS6 0.35um technology which works @3.3Vdc; to avoid interface problem with existing logics, all digital Inputs are 5V tolerant. When interfacing logic on TDA7522 outputs, user should take care of output levels that are at CMOS level @3.3V. Depending on output type the Iol and Ioh value are guaranteed at 4mA or 8mA; the TDA7522 output driving specification will be included in a next issue of this data sheet.