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- Monitor Timing Specifications ATI mach32-based accelerators
- ATI Technical Note #077
- January 12, 1994
-
- This technical note contains detailed monitor timing specifications for
- the output of current retail ATI mach32-based accelerators. The monitor
- timing specifications of other versions may differ from those listed in
- this document. These specifications are subject to change without notice.
- This document is of interest to technical persons connected with monitor
- or video printer manufacturers.
-
-
- Parameter Mode/Resolution
-
- 640x480 640X480 640x480 800x600 800x600
- 60 NI 72 NI 72 NI(A) 89 I 95 I
-
- Pixel Clock Freq 25.125 MHz 32.00 MHz 40.00 MHz 32.50 MHz 36.00 MHz
- Sync Polarity H- V- H- V- H- V- H+ V- H+ V+
- Horizontal Freq (KHz) 31.406 37.736 44.148 31.492 33.835
- H1-Period (ÊS) 31.841 26.500 22.651 31.753 29.555
- H2-Active (ÊS) 25.473 20.000 16.036 24.615 22.222
- H3-Blanking (ÊS) 6.368 6.500 6.615 7.138 7.333
- H4-Front Porch (ÊS) 0.637 0.750 1.604 0.492 2.222
- H5-Back Porch (ÊS) 1.910 4.500 1.804 5.662 1.556
- H6-Sync Width (ÊS) 3.821 1.250 3.207 0.985 3.556
- Vertical Freq (Hz) 59.82 72.57 71.79 89.72 96.39
- V1-Period (ms) 16.717 13.78 13.93 11.145 10.374
- V2-Active (ms) 15.284 12.720 10.872 9.526 8.867
- V3-Blanking (ms) 1.433 1.060 3.058 1.619 1.507
- V4-Front Porch (ms) 0.350 0.239 1.133 0.175 0.163
- V5-Back Porch (ms) 1.019 0.742 1.654 1.254 1.167
- V6-Sync Width (ms) 0.064 0.080 0.272 0.191 0.177
-
-
- 800x600 800x600 800x600 800x600 800x600
- 56 NI 60 NI 70 NI 72 NI 76 NI
-
- Pixel Clock Freq 36.00 MHz 40.00 MHz 44.90 MHz 50.35 MHz 56.64 MHz
- Sync Polarity H+ V+ H+ V+ H+ V+ H+ V+ H- V-
- Horizontal Freq (KHz) 35.156 37.879 44.544 48.044 52.444
- H1-Period (ÊS) 28.444 26.400 22.45 20.815 19.068
- H2-Active (ÊS) 22.222 20.000 17.817 15.889 14.124
- H3-Blanking (ÊS) 6.222 6.400 4.633 4.926 4.944
- H4-Front Porch (ÊS) 0.667 1.000 0.535 1.112 1.412
- H5-Back Porch (ÊS) 3.556 2.200 0.891 1.430 2.401
- H6-Sync Width (ÊS) 2.000 3.200 3.207 2.383 1.130
- Vertical Freq (Hz) 56.25 60.32 70.04 72.14 76.01
- V1-Period (ms) 17.778 16.579 14.278 13.863 13.157
- V2-Active (ms) 17.067 15.840 13.470 12.489 11.441
- V3-Blanking (ms) 0.711 0.739 0.808 1.374 1.716
- V4-Front Porch (ms) 0.028 0.026 0.202 0.770 0.744
- V5-Back Porch (ms) 0.626 0.607 0.337 0.479 0.896
- V6-Sync Width (ms) 0.057 0.106 0.269 0.125 0.076
-
-
- 1024x768 1024x768 1024x768 1024x768 1024x768
- 87 I 60 NI 66 NI 70 NI 72 NI
-
- Pixel Clock Freq 44.90 MHz 65.00 Mhz 75.00 Mhz 75.00 Mhz 75.00 MHz
- Sync Polarity H+ V+ H+ V+ H+ V+ H- V- H- V-
- Horizontal Freq (KHz) 35.522 48.363 53.879 56.476 58.230
- H1-Period (ÊS) 28.151 20.677 18.56 17.706 17.173
- H2-Active (ÊS) 22.806 15.754 13.653 13.653 13.653
- H3-Blanking (ÊS) 5.345 4.923 4.907 4.053 3.520
- H4-Front Porch (ÊS) 0.535 0.369 0.640 0.320 0.320
- H5-Back Porch (ÊS) 1.069 2.462 1.920 1.920 1.387
- H6-Sync Width (ÊS) 3.742 2.092 2.347 1.813 1.813
- Vertical Freq (Hz) 86.64 60.00 66.03 70.07 72.245
- V1-Period (ms) 11.542 16.666 15.145 14.272 13.843
- V2-Active (ms) 10.838 15.880 14.254 13.599 13.189
- V3-Blanking (ms) 0.704 0.786 0.891 0.673 0.653
- V4-Front Porch (ms) 0.028 0.062 0.148 0.053 0.052
- V5-Back Porch (ms) 0.563 0.600 0.668 0.513 0.498
- V6-Sync Width (ms) 0.113 0.124 0.074 0.106 0.103
-
-
- 1024x768 1280x1024 1280x1024 1280x1024 1280x1024
- 76 NI 87 I 95 I 60 NI 70 NI
-
- Pixel Clock Freq 80.00 MHz 80.00 MHz 80.00 MHz 110.00MHz 126.00 MHz
- Sync Polarity H+ V+ H+ V+ H+ V+ H- V- H+ V+
- Horizontal Freq (KHz) 61.350 50.000 50.000 63.953 74.645
- H1-Period (ÊS) 16.300 20.000 20.000 15.636 13.397
- H2-Active (ÊS) 12.800 16.00 16.00 11.636 10.159
- H3-Blanking (ÊS) 3.500 4.000 4.000 4.000 3.238
- H4-Front Porch (ÊS) 0.800 1.000 1.000 0.727 0.635
- H5-Back Porch (ÊS) 1.600 2.000 2.000 2.255 1.714
- H6-Sync Width (ÊS) 1.100 1.000 1.000 1.018 0.889
- Vertical Freq (Hz) 76.02 87.03 94.97 59.94 70.02
- V1-Period (ms) 13.154 11.490 10.530 16.684 14.281
- V2-Active (ms) 12.518 10.240 10.240 16.012 13.718
- V3-Blanking (ms) 0.636 1.250 0.290 0.672 0.563
- V4-Front Porch (ms) 0.130 0.500 0.100 0.016 0.013
- V5-Back Porch (ms) 0.440 0.650 0.090 0.579 0.482
- V6-Sync Width (ms) 0.065 0.100 0.100 0.078 0.067
-
-
- 1280x1024
- 74 NI
-
- Pixel Clock Freq 135.00 MHz
- Sync Polarity H+ V+
- Horizontal Freq (KHz) 78.855
- H1-Period (ÊS) 12.681
- H2-Active (ÊS) 9.481
- H3-Blanking (ÊS) 3.200
- H4-Front Porch (ÊS) 0.237
- H5-Back Porch (ÊS) 1.896
- H6-Sync Width (ÊS) 1.067
- Vertical Freq (Hz) 74.11
- V1-Period (ms) 13.493
- V2-Active (ms) 12.986
- V3-Blanking (ms) 0.507
- V4-Front Porch (ms) 0.000
- V5-Back Porch (ms) 0.127
- V6-Sync Width (ms) 0.380
-