描述 Description

The M65580MAP-XXXFP are semiconductor integrated circuits designed with CMOS silicon gate technology for NTSC television system, include 8 bit MCU (M37272MA core) with a closed caption decoder and circuits needed for TV base-band signals (Video and Chroma) processor and Deflection in a chip. PCB area and EMI noise can be reduced by one chip and 80QFP, and internal connection of OSD signals. And it can realize an adjustment free system by builtin MCU and get a high performance adaptive YC separation by 1 line memory. The above technology makes its performance more stable and better.

特性 Features

? Y/C processor: 8 bit Input, 10 bit Output digital processing

? Deflection processor: optimized system by conventional analog and digital mixed solution

? ADC & DAC: 8 bit high speed video ADC & 10 bit high speed video DAC

[MCU Block]

MCU (single microcomputer) in this IC has almost same function and performance as M37272MA-XXXSP/FP in mass-production. And it is operated by simple instruction in the same memory space as that of built-in ROM, RAM, I/O. It has an OSD, data slicer, and I2C-BUS interface. So it is very useful for a channel selection system for NTSC TV with a closed caption decoder.

[ASIC Block]

ASIC block consists of the following blocks.

(1) Analog front-end block; Analog SW (2 CVBS (TV & EXT) inputs, Y/C signals to one signal, 2 channels 8 bit high speed video ADCs, and ACC amplifiers.

(2) Video and Chroma block; A high performance 2 line adaptive YC separation by 1 line memory, Video blocks including sharpness, YNR, a high performance black-stretch circuits, Chroma decoder, and RGB matrix including OSD mixing circuit.

(3) Deflection block; A high performance sync separation by analog and digital mixed solution.

(4) Analog backend block; 3 channels 10 bit high speed video DACs for Cutoff & Drive, and Mute circuit.

Application

NTSC TV with a closed caption decoder