DESCRIPTION

The STV2162 is an I2C bus controlled Video and Deflexion Processor for 2H-Deflection Television Sets. The IC incorporates also an secondary SMPS (Switch Mode Power Supply) controller with Softstart and Protection facilities.

VIDEO PART

■ USER CONTROL FUNCTIONS : CONTRAST, BRIGHTNESS, SATURATION, COLOR EQUALIZER

■ RGB INPUT WITH FAST-BLANKING FOR ON-SCREEN-DISPLAY / TELETEXT

■ FAST BLANKING INPUT FOR CONTRAST REDUCTION (TRANSPARENT MENU BOX)

■ AVERAGE BEAM LIMITER FUNCTION WITH CONTRAST AND BRIGHTNESS REDUCTION

■ PAL/SECAM OR NTSC MATRIX SWITCHABLE BY BUS

■ AUTOMATIC CUT-OFF LOOP WITH INTEGRATED DIGITAL MEMORY AND LEAKAGE CURRENT COMPENSATION

■ FULL WHITE ADJUSTMENT VIA BUS

■ BUS REPLY FOR TUBE COLD INFORMATION AND CUT-OFF COUNTER STATUS

■ APX (AUTO PIX) : ADAPTIVE CONTRAST CONTROL

■ COLOR MATCHING (IN CONNECTION WITH WHITE STRETCH)

■ APL (AUTO PEDESTAL) = ADAPTIVE BRIGHTNESS

■ WHITE STRETCH

■ VERTICAL AND OVERSIZE BLANKING ACCORDING TO ALL ZOOMS

■ INDEPENDENT RIGHT AND LEFT ADJUSTMENT OF HORIZONTAL OVERSIZE BLANKING

SCANNING PART

■ INTERNAL OR EXTERNAL 27MHz CLOCK

■ VERTICAL SYNCHRONISATION OUTPUT FOR VIDEO TEXT AND OSD DISPLAY

■ PHI2 LOOP WITH INTERNAL LOOP FILTER

■ PULSE OUTPUT FOR DRIVING HORIZONTAL OUTPUT STAGE

■ VERTICAL COUNTDOWN CIRCUIT FOR CLEAN VERTICAL DEFLECTION

■ INTEGRATED VERTICAL SAWTOOTH GENERATOR WITH AMPLITUDE CONTROL LOOP

■ VERTICAL AND HORIZONTAL BUS ADJUSTABLE SIZE CORRECTION (BREATHING) TO ADAPT DEFLECTION SENSITIVITY TO THE CURRENT BEAM This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

■ BUS ADJUSTED VERTICAL PARAMETERS: VERTICAL AMPLITUDE, VERTICAL POSITION AND S-CORRECTION

■ PANNING FOR VERTICAL DEFLECTION

■ BUS CONTROLLED EAST-WEST FUNCTION GENERATOR WITH INTEGRATED ERROR AMPLIFIER

■ VARIABLE FIX-POINTS FOR S-CORRECTION VERTICAL BLANKING AND EAST-WEST CORNER CORRECTION

■ SUPER SANDCASTLE OUTPUT

■ VERTICAL POWER SAVE MODE

SMPS PART

■ SMPS PULSE-WIDTH MODULATOR WITH BUS CONTROLLED REFERENCE VOLTAGE

■ SOFTSTART FOR SMPS MODULATOR, EVEN IN CASE OF MISSING HORIZONTAL CLOCK (27MHz)

■ SOFTSTART FOR HORIZONTAL OUTPUT STAGE

■ SMOOTH TRANSITION FROM SOFTSTART TO NORMAL MODE

■ GENERAL STANDBY MODE CONTROL

■ PROTECTION CIRCUIT FOR OVERLOAD DETECTION (SHORT CIRCUITS) AND CONTROL OF SMPS MODULATOR

■ BUS REPLY FOR OVERLOAD