STV9212

Datasheet | Orderable Products | Features and Description

Reference	Filesize	Pages	Last Updated
STV9212	335KB	34	13/10/2003

Device	Status	RoHS	Package	Purchase
STV9212	Active	Ongoing	PDIP 24

General
	I2C Bus Controlled
	Supports AC- and DC-coupled applications
	5V to 8V Power Supply
	Brightness Selection (after or before Drive)
	Matches to virtually any video amplifier
PictureBooST™
	PictureBooSTä insertion input
	Full-screen PictureBooSTä via I²C-bus
	Context-sensitive Picture Enhancement
Video Clamping
	Input and Output Video Clamp
	Sync Pulse Polarity Auto-rectification
	Clamp Pulse Generation timed
Video Processing
	Contrast Adjustment with excellent channel matching
	Gain stages for control of white
	Two DC-mode cut-off ranges
	Output DC offset control
	Automatic Beam Limiter (ABL)
	Video Insertion Pulse (VIP), 2 levels
	Amplifier Control (Blanking and Stand-by)
OSD Insertion with Contrast Control
Control Output
	Amplifier Standby and Blanking Control
	3 DAC for control of DC Restore Amplifier or Brightness in DC-coupled system

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.

Reference	Title	Last Updated	Size	Associated Files
AN1510	ST video kit for CRT monitor: Optimization of the video performances with input networks	13/05/2004	400KB
AN1490	White balance adjustment procedure with ST video solutions in DC coupling mode	13/05/2004	186KB