STV9212 Datasheet | STMicroelectronics

® Video Processor for CRT Monitors with Picture Boo ST™ Main Features s General q q q q I²C-Bus Controlled Supports AC- and DC-coupled applications 5V to 8V Power Supply Matches to virtually any video amplifier DIP24S:(Plastic Package) ORDER CODE: STV9212 Picture Boo ST™ insertion input Full-screen Picture Boo ST™ via I²C-bus Context-sensitive Picture Enhancement Input and Output Video Clamp Sync Pulse Polarity Auto-rectification Clamp Pulse Generation timed either by sync or video blanking pulse 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) s Picture Boo ST™ q q q s Video Clamping q q q 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 mon DC offset control functions. On top of these usual controls, it Features context-sensitive picture enhancement circuitry to support the Picture Boo ST™ 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...