Broadcom BCM7405 - Supported PC Scan Rates; Table 1-12: DVI PC Scan Clock Rates; Table 1-13: PC Display Support

2/24/2008 9T6WP
Preliminary Hardware Data Module BCM7405
06/29/07 Functional Description
Broadcom Corporation
Document 7405-1HDM00-R Video and Graphics Display Page 1-55
Supported PC Scan Rates
Table 1-12 and Table 1-13 illustrate the clock rates that the DVI core can generate as well as the PC format resolutions that
it can support.
Table 1-12: DVI PC Scan Clock Rates
Mode of Operation Frequency Frequency
Ratio from
27 MHz
Ratio from
25 MHz
Comments
Consumer Electronics Display Modes 25.175 25.200 14/15 – Safe mode
27.000 27.027 1/1 – –
54.000 54.054 2/1 – –
74.175 74.250 11/4 – –
VESA display modes 40.000 40.040 – 8/5 –
65.000 65.065 – 13/5 –
Table 1-13: PC Display Support
Resolution Refresh Rate (Hz) Horizontal Frequency (kHz) Pixel Frequency (MHz) Standard Type
640 x 480 60 31.5 25.175 Industry Standard
800 x 600 60 37.9 40.000 VESA Guidelines