The VDP^® 31xxB is a Video IC family of high-quality single-chip video processors. Modular design and a submicron technology allow the economic integration of features in all classes of TV sets.

Each member of the family contains the entire video, display, and deflection processing for 4:3 and 16:9 50/60 TV sets. Its performance and flexibility allow the user to standardize his product development. Hardware and software applications can profit from the modularity, as well as manufacturing, systems support, or maintenance.

System Architecture

Block diagram of the VDP 3120B

Main Features

Video Decoding

4 composite inputs, 1 S-VHS input

Composite video & sync output

Composite video & sync output

Adaptive 2H comb filter Y/C separator

1H NTSC comb filter

Multistandard color decoder (1 crystal)

Multistandard sync decoder

Black line detector

Video Processing

Horizontal scaling (0.25 to 4)

Panorama vision

Black level expander

Dynamic peaking

Soft limiter (gamma correction)

Color transient improvement

RGB Processing

Programmable RGB matrix

Digital color bus interfaceAdditional analog RGB / fast blank input

Half-contrast switch

Picture frame generator

Deflection

Scan velocity modulation output

High-performance H/V deflection

Separate ADC for tube measurements

EHT compensation

Miscellaneous

One 20.25 MHz crystal, few external components

Embedded RISC controller (80 MIPS)

I2C Bus Interface

Single 5 V power supply

Submicron CMOS technology

64 pin PSDIP package

Family Overview

	VDP 31xxB Family	1H Combfilter	2H adapt. Comb	Horizontal Scaler	Color Trans. Impr.	Scan Vel. Mod.	Prog. RGB Matrix	RGB Insertion	Tube Control
	VDP 3104B	•					•	•	•
	VDP 3108B	•			•	•	•	•	•
	VDP 3112B	•	•		•	•	•	•	•
	VDP 3116B	•		•	•	•	•	•	•
	VDP 3120B	•	•	•	•	•	•	•	•