www.fairchildsemi.com Application Note 60 TMC22x5y input data ranges There is no fixed input data range to the TMC22x5y family of digital decoders, as the programmable output matrix allows up to 6dB of gain on the luminance and color differ- ence signals. The following data ranges for 100% composite and YC color bar inputs is for reference only. Color NTSC/M bar white Figure 1: Composite video waveform PAL/I Y C Y C 824 0 828 0 Yellow 762 ± 242 763 ± 257 Cyan 663 ± 341 657 ± 362 Green 601 ± 319 592 ± 338 Magenta 507 ± 319 492 ± 338 Red 445 ± 341 426 ± 362 Blue 345 ± 242 321 ± Pedestal 284 0 n/a n/a Blanking 240 0 256 0 Burst 0 sync tip 6 ± 117 0 0 10 257 ± 122 0 Table 1: 10 bit composite input data ranges Color bar white Figure 2: YC video waveforms NTSC/M PAL/I Y C Y C 1008 0 1008 0 Yellow 933 ± 347 928 ± 355 Cyan 811 ± 488 799 ± 499 Green 735 ± 456 719 ± 467 Magenta 620 ± 456 597 ± 467 Red 545 ± 488 517 ± 499 Blue 433 ± 347 388 ± Pedestal 348 0 n/a n/a Blanking 294 0 308 0 Burst 0 sync tip 8 ± 167 0 0 8 Table 2: 10 bit YC input data ranges ± 355 170 0 AN60 APPLICATION NOTE LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 7/21/98 0.0m 001 Stock#AN30000060 Ó 1998 Fairchild Semiconductor Corporation