Doremi DSDI-20s - Manual (Page 9)

2.3.3 DVI-A Special Instructions
Analog input sources can be noisy and jittery. We strongly recommend using the digital inputs
whenever possible. If you have to use the analog input, make sure your timing is compliant with
the CEA-861-B standard, especially for 1920x1080p @ 60 Hz. These are the Guidelines for DVI-
A inputs:
1. The timing must comply with the standards: VESA or CEA
2. The Pixel Clock should be less than 165MHz
3. For 1920x1080, the timing must comply with CEA-861B that yields a pixel clock of 148.5
MHz.
4. For 1920x1200, the timing must comply with VESA or CEA, the total number of pixels
must be less than 2200 and the pixel clock must be lower than 165MHz.
The pixel clock P is equal to:
P = total_horizontal_size x total_vertical_size x refresh.
For a 1024*768 at 85 Hz:
total_horizontal_size = 1376 (1024 pixels + horizontal blanking)
total_vertical_size = 808 (768 + horizontal blanking)
refresh = 85
P = 1376 * 808 * 85
P = 94503680 Hz
P = 95.5 MHz
DVI.OM.000262.DRM Page 9 of 33 Version 1.4
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