This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

October 2003

1/34

®

STV9212

Video Processor for CRT Monitors with PictureBooST

™

Main Features

s General

q

I²C-Bus Controlled

q

Supports AC- and DC-coupled applications

q

5V to 8V Power Supply

q

Matches to virtually any video amplifier

s PictureBooST

™

q

PictureBooST

™ insertion input

q

Full-screen PictureBooST

™ via I²C-bus

q

Context-sensitive Picture Enhancement

s Video Clamping

q

Input and Output Video Clamp

q

Sync Pulse Polarity Auto-rectification

q

Clamp Pulse Generation timed either by sync

or video blanking pulse

s Video Processing

q

Contrast Adjustment with excellent channel

matching

q

Gain stages for control of white

q

Two DC-mode cut-off ranges

q

Output DC offset control

q

Automatic Beam Limiter (ABL)

q

Video Insertion Pulse (VIP), 2 levels

q

Amplifier Control (Blanking and Stand-by)

s OSD Insertion with Contrast Control

s Control Output

q

Amplifier Standby and Blanking Control

q

3 DAC for control of DC Restore Amplifier or

Brightness in DC-coupled system

General Description

The STV9212 is an I²C-bus controlled color video

processor designed for standard CRT monitor

applications. It can drive systems where cathodes

are either AC- or DC-coupled to the amplifier

outputs. The three video channels provide contrast

and white balance separate gain adjustments as

well as one-per-channel DC cut-off control and

common DC offset control functions. On top of

these usual controls, it features context-sensitive

picture enhancement circuitry to support the

PictureBooST

™ function that enhances the

appearance of still pictures and moving video.

In AC coupling applications, the device can pilot

three cathode DC restore channels dedicated to set

CRT cut-off bias voltages and to control brightness

through cathodes.

The RGB video outputs have a class A architecture

and directly drive the amplifier channels without

unnecessarily consuming current. Bandwidth

limitation I²C-bus adjustments can contribute to

keeping the application EMI under control.

OSD (On-Screen Display) graphics are inserted by

means of a Fast Blanking signal. Independent OSD

contrast control facilitates adaptation to various

OSD generators and provides system flexibility.

The STV9212 is perfectly compatible with other ST

components for CRT video boards, such as video

amplifiers and OSD generators.

DIP24S:(Plastic Package)

ORDER CODE: STV9212