This document is a data sheet for the SAA4977H product produced by Philips Semiconductors. This product is an integrated circuit with an internal prefilter, clamp circuit, analog AGC, line locked PLL, triple YUV 8-bit analog-to-digital converter (ADC), horizontal compression, field rate up-converter (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 kB ROM, and 256 bytes of RAM.
The SAA4977H is a video processing integrated circuit designed by Philips Semiconductors. It provides analog YUV interfacing, video enhancing features such as automatic gain control and digital clamp correction, and includes an embedded 80C51 microprocessor core with memory controller capabilities.
This document serves as a preliminary specification released in July 1998. It details the functional description of the chip's internal blocks, including analog-to-digital conversion, digital processing at various levels, and digital-to-analog conversion. The datasheet also covers pinning information for the QFP80 package, limiting values, thermal characteristics, and ordering information.
| Digital supply voltage back-end (VDDB) | 3.15 to 3.45 V |
|---|---|
| Operating ambient temperature (Tamb) | -20 to +60 °C |
| Total power dissipation (Prot) | 1.3 W |
| Embedded Microprocessor Core | 80C51 |
| ROM Memory Size | 16 kbyte |
| RAM Memory Size | 256 byte |
The device is available in a plastic quad flat package with 80 leads.
Yes, it supports field rate up-conversion from 50 to 100 Hz or 60 to 120 Hz.
The three identical ADCs convert Y, U and V with a 16 MHz data rate.