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TSH343I Datasheet(PDF) 10 Page - STMicroelectronics |
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TSH343I Datasheet(HTML) 10 Page - STMicroelectronics |
10 / 14 page Using the TSH343 to Drive Y-Pb-Pr Video Components TSH343 10/14 Rev. 2 4 Using the TSH343 to Drive Y-Pb-Pr Video Components Figure 27. Shapes of video signals coming from DACs Figure 28. Implementation of the video driver on output video DACs 0 IRE Black Level Image Content 30 IRE White Level 100 IRE 1Vp-p 300mV GND Video DAC Image Content Y Pb Pr Video DAC R G B Y signal (synchronization tip) R,G,B,Pb,Pr signals (no synchronization tip) +5V 75 Ω 75 Ω Cable 75 Ω 1Vpp 1Vpp 2Vpp 1Vpp 1Vpp Video DAC LPF Reconstruction Filtering Y 75 Ω 75 Ω Cable 75 Ω Video DAC Pb 75 Ω Video DAC Pr TV 600mV TSH343 75 Ω Cable 75 Ω +6dB + + LPF Reconstruction Filtering +6dB + + LPF Reconstruction Filtering +6dB + + 20mV 1Vp-p Content of the video signal+ tip synchro. 0V 620mV 1Vp-p 0V 620mV 1Vp-p 0V (1) DAC output (2) Amplifier input (3) Amplifier output (4) On the line +600mV 0.7Vpp 0.7Vpp 1.4Vpp 1.4Vpp 0.7Vpp 0.7Vpp 0.7Vpp 0.7Vpp 1.4Vpp 1.4Vpp 0.7Vpp 0.7Vpp 600mV 600mV -5V GND 1,24V 2Vp-p 0V Amplifier output rail (70mV max.) Amplifier output rail (3.7V min.) 3,24V |
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