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TDA9203 Datasheet(PDF) 1 Page - STMicroelectronics |
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TDA9203 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 13 page  TDA9203A I 2C BUS CONTROLLED 70MHz RGB PREAMPLIFIER June 1998 SHRINK 24 (Plastic Package) ORDER CODE : TDA9203A . 70MHz TYPICAL BANDWIDTH AT 4VPP OUT- PUT WITH 12pF CAPACITIVE LOAD . 5.5ns TYPICAL RISE/FALL TIME AT 4VPP OUTPUT WITH 12pF CAPACITIVE LOAD . POWERFULL OUTPUT DRIVE CAPABILITY . BRT, CONT, DRIVE, OUTPUT DC LEVEL, OSD CONTRAST, BACK-PORCH CLAMPING PULSE WIDTH ARE I 2C BUS CONTROLLED . INTERNAL BACK-PORCH CLAMPING PULSE GENERATOR . OSD WHITE BALANCE TRACKING . INTERNAL OSD SWITCHES . BLANKING AND FAST-BLANKING INPUTS . VERY LARGE DRIVE ADJUSTMENT RANGE (48dB) . SEMI-TRANSPARENT BACKGROUND ON OSD PICTURE . ABL CONTROL DESCRIPTION The TDA9203A is a digitaly controlled wideband video preamplifier intended for use in mid range color monitor. All controls and adjustments are digitaly performed thanks to I 2C serial bus. Con- trast, brightness and DC output level of RGB sig- nals are common to the 3 channels and drive adjustment is separate for each channel. Three I 2C gain controlled OSD inputs can be switched with RGB signals using fast blanking command. Clamp- ing of RGB signals is performed thanks to a flexible integrated system. The white balance adjustment is effective on brightness, video and OSD signals. The TDA9203A works for application using AC or DC coupled CRT driver. The ABL input provides a 12dB Max. attenuation on the current contrast value according average beam limitation voltage. Because of its features and due to component saving the TDA9203A leads to a very performant and cost effective application. 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 24 23 22 21 11 12 HSYNC PV CC1 OUT1 PGND1 PV CC2 OUT2 PGND2 PV CC3 OUT3 PGND3 BLK FBLK IN1 OSD1 AV DD IN2 OSD2 AGND IN3 OSD3 ABL LGND SDA SCL PIN CONNECTIONS 1/13 |
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