STV2145 Datasheet | STMicroelectronics

I2C BUS CONTROLLED EAST-WEST AND VERTICAL INTERFACE - . . INTEGRATED VERTICAL SAWTOOTH GENERATOR WITH AMPLITUDE CONTROL LOOP (50Hz - 60Hz) INTERLACE MODE INTRINSICALLY CONTROLLED BY STV2118A VERTICAL SIZE CORRECTION (BREATHING) TO ADAPT DEFLECTION SENSITIVITY TO THE CURRENT BEAM (HIGH VOLTAGE VARIATION) BUS ADJUSTED VERTICAL PARAMETERS : VERTICAL AMPLITUDE, VERTICAL POSITION AND S-CORRECTION EAST-WEST FUNCTION GENERATOR WITH INTEGRATED ERROR AMPLIFIER (THUS, ONLY 1 EXTERNAL POWER DARLINGTON IS NECESSARY FOR EW-FUNCTION) BUS CONTROLLED EAST-WEST FUNCTIONS : EW-AMPLITUDE, HORIZONTAL WIDTH, EW-TILT AND EW-SHAPE (CORNER CORRECTION) OVERSIZE BLANKING (VERTICAL AND HORIZONTAL) WHICH PERMIT ZOOM AND SUBTITLE FACILITIES FOR 4/3 AND 16/9 CRTs DESCRIPTION The STV2145 is an I2C bus processor containing the vertical deflection East-West functions and oversize blanking. This circuit is foreseen as ADDON for the Video Chroma Processor STV2118A to permit 110° CRT applications covering standard 4/3 screen format and new 16/9 format with zoom and subtitle facilities. STV2145 has been designed to drive a standard TDA8172/8177 vertical booster and an external transistor for East-West. DIP16 (Plastic Package) ORDER CODE : STV2145 PIN CONNECTIONS I2C BUS SERIAL CLOCK I C BUS SERIAL DATA VERTICAL RETRACE PULSE (FROM STV2118A) REGULATOR OUTPUT FOR SERIES TRANSISTOR REGULATED VOLTAGE SUPPLY SCL SDA VRET REG V CC LPF 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SENSM SENSP FROUT EWOUT EWIN OBLK HFLY BREATH RESISTOR BRIDGE DIFFERENTIAL INPUT FRAME OUTPUT ERROR SIGNAL EAST-WEST ERROR AMPLIFIER OUTPUT EAST-WEST ERROR AMPLIFIER INPUT OPEN COLLECTOR BLANKING SIGNAL HORIZONTAL FLYBACK INPUT (CURRENT INPUT) VERTICAL SIZE MODULATION 2145-01.EPS LOOP FILTER FOR 2H-PLL VERTICAL AGC CAPACITOR CVERT GROUND April 1996 1/17 PIN DESCRIPTION Pin N° 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Name SCL SDA VRET REG VCC LPF CVERT GND BREATH HFLY OBLK EWIN EWOUT FROUT SENSP...