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TDA9209 Dataheets PDF



Part Number TDA9209
Manufacturers ST Microelectronics
Logo ST Microelectronics
Description 150 MHz PIXEL VIDEO CONTROLLER FOR MONITORS INCLUDING CUT-OFF INPUTS AND VIDEO DETECTION
Datasheet TDA9209 DatasheetTDA9209 Datasheet (PDF)

TDA9209 150 MHz PIXEL VIDEO CONTROLLER FOR MONITORS INCLUDING CUT-OFF INPUTS AND VIDEO DETECTION FEATURE s s s s s s s s s s s s s s s s s s 150 MHZ PIXEL RATE 2.7 ns RISE AND FALL TIME I2C BUS CONTROLLED GREY SCALE TRACKING VERSUS BRIGHTNESS OSD MIXING NEGATIVE FEED-BACK FOR DC COUPLING APPLICATION INTERNAL POSITIVE FEED-BACK FOR LCD APPLICATION 0.5~4.5 V DACs FOR BLACK LEVEL RESTORATION (AC-COUPLING APPLICATION) OR CUT-OFF CONTROLS (FOR DC-COUPLING APPLICATION USING THE ST AMPLIFIERS T.

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TDA9209 150 MHz PIXEL VIDEO CONTROLLER FOR MONITORS INCLUDING CUT-OFF INPUTS AND VIDEO DETECTION FEATURE s s s s s s s s s s s s s s s s s s 150 MHZ PIXEL RATE 2.7 ns RISE AND FALL TIME I2C BUS CONTROLLED GREY SCALE TRACKING VERSUS BRIGHTNESS OSD MIXING NEGATIVE FEED-BACK FOR DC COUPLING APPLICATION INTERNAL POSITIVE FEED-BACK FOR LCD APPLICATION 0.5~4.5 V DACs FOR BLACK LEVEL RESTORATION (AC-COUPLING APPLICATION) OR CUT-OFF CONTROLS (FOR DC-COUPLING APPLICATION USING THE ST AMPLIFIERS TDA9533/9530) BEAM CURRENT ATTENUATION (ABL) PEDESTRAL CLAMPING ON OUTPUT STAGE POSSIBILITY OF LIGHT OR DARK GREY OSD BACKGROUND OSD INDEPENDENT CONTRAST CONTROL ADJUSTABLE BANDWIDTH INPUT BLACK LEVEL CLAMPING WITH BUILT-IN CLAMPING PULSE STAND-BY MODE 5 V TO 8 V POWER SUPPLY SYNC CLIPPING FUNCTION (SOG) VIDEO DETECTION SHRINK DIP24 (Shrink Plastic Package) ORDER CODE: TDA9209 DESCRIPTION The TDA9209 is an I2C Bus controlled RGB preamplifier designed for Monitor application, able to mix the RGB signals coming from any OSD device. The usual Contrast, Brightness, Drive and Cut-Off Controls are provided. In addition, it includes the following features: – OSD contrast, – Bandwidth adjustment, – Grey background, – Internal back porch clamping pulse generator. The RGB incoming signals are amplified and shaped to drive any commonly used video amplifiers without intermediate follower stages. Even though encapsulated in a 24-pin package only, this IC allows any kind of CRT Cathode coupling : – AC coupling with DC restore, – DC coupling with Feed-back from Cathodes, – DC coupling with Cut-Off controls of the Video amplifier (ST Amplifiers TDA9533/9530). As for any ST Video pre-amplifier, the TDA9209 is able to drive a real load without any external interface. One of the main advantages of ST devices is their ability to sink and source currents while most of the devices from our competitors have problems to sink large currents. These driving capabilities combined with an original output stage structure suppress any static current on the output pins and therefore reduce dramatically the power dissipation of the device. Extensive integration combined with high performance and advanced features make the TDA9209 one of the best choice for any CRT Monitor in the 14” to 17” range. Perfectly matched with the ST Video Amplifiers TDA9530/33, these 2 products offer a complete solution for high performance and cost-optimized Video Board Application. Version 4.2 March 2000 1/22 1 TDA9209 1 - PIN CONNECTIONS IN1 ABL IN2 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 BLK HSYNC or BPCP CO1/FB1 OUT1 VCCP OUT2 GNDP OUT3 CO3/FB3 CO2/FB2 SDA SCL GNDL IN3 GNDA VCCA AV OSD1 OSD2 OSD3 FBLK 2 - PIN DESCRIPTION Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Symbol IN1 ABL IN2 GNDL IN3 GNDA VCCA AV OSD1 OSD2 OSD3 FBLK SCL SDA CO2/FB2 CO3/FB3 OUT3 GNDP OUT2 VCCP OUT1 CO1/FB1 HSYNC BPCP BLK Red Video Input ABL Input Green Video Input Logic Ground Blue Video Input Analog Ground Analog VCC (5V) Active Video Output Red OSD Input Green OSD Input Blue OSD Input Fast Blanking SCL SDA Green Cut-off Output/Feedback Input Blue Cut-off Output/Feedback Input Blue Video Output Power Ground Green Video Output Power VCC (5 V to 8 V) Red Video Output Red Cut-off Output/Feedback Input HSYNC BPCP Blanking Input Description 2/22 TDA9209 3 - BLOCK DIAGRAM BLK FBLK 12 Output Clamp Pulse (OCL) Drive Output Stage 21 OUT1 22 CO1/FB1 Clamp VCCP 20 TDA9209 VREF IN1 1 24 Contrast IN2 3 Green Channel 19 OUT2 15 CO2/FB2 17 OUT3 16 CO3/FB3 Cut-off 8bits IN3 5 ABL 2 BPCP Contrast/8bit Blue Channel Brightness Drive 8bits 3x8bits Latches I2C Bus Decoder D/A 18 GNDP GNDL 4 IC OSD Cont. 4bits Output DC Level 4bits GNDA 6 VCCA 7 AV 8 23 HSYNC or BPCP 14 13 SDA SCL VREF 9 OSD1 10 OSD2 11 OSD3 see Figure 12 for complete BPCP and OCL generation diagram 4 - FUNCTIONAL DESCRIPTION 4.1 RGB Input The three RGB inputs have to be supplied through coupling capacitors (100 nF). The maximum input peak-to-peak video amplitude is 1 V. The input stage includes a clamping function. The clamp uses the input serial capacitor as a ”memory capacitor”. To avoid a discharge of the serial capacitor during the line (due to leakage current), the input voltage is referenced to the ground. The clamp is gated by an internally generated ”Back Porch Clamping Pulse” (BPCP). Register 8 allows to choose the way to generate this BPCP (see Figure 1). When bit 0 is set to 0, the BPCP is synchronized on the trailing or leading edge of HSYNC (Pin 23) (bit 1 = 0: trailing edge, bit 1 = 1: leading edge). 3/22 TDA9209 Additionally, the IC automatically works with either positive or negative HSYNC pulses. – When bit 0 is set to 1, BPCP is synchronized on the leading edge of the blanking pulse BLK (Pin 24). One can use a positive or negative blanking pulse by programming bit 0 in Register 9 (See I 2C Table 3). – BPCP width can be adjusted with bit 2 and .


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