2 GENERAL DESCRIPTION

The SAA4977H is a video processing IC providing analog YUV interfacing, video enhancing features, memory controlling and an embedded 80C51 microprocessor core. It is applicable especially for field rate up-conversion (50 to 100 Hz or 60 to 120 Hz) in cooperation with a 2.9 Mbit field memory. It is designed for applications together with:

SAA4955/56TJ, TMS4C2972/73 (serial field memories)

SAA4990H (PROZONIC)

SAA4991WP (MELZONIC).

FEATURES

• Internal prefilter

• Clamp circuit

• Analog AGC

• Line locked PLL

• Triple YUV 8-bit Analog-to-Digital Converter (ADC)

• Horizontal compression

• Field rate up-conversion (50 to 100 Hz or 60 to 120 Hz)

• 4:1:1 digital I/O interface

• Digital CTI (DCTI)

• Digital luminance peaking

• Triple 10-bit Digital-to-Analog Converter (DAC)

• Memory controller

• Embedded microprocessor

• 16 kbyte ROM

• 256 byte RAM

• I2C-bus interface

• Synchronous No parity Eight bit Reception and Transmission (SNERT) interface.